Precipitation Lab
Prelab
1. Before coming to class on the day of the lab (that means this is homework):
a.
c.
d.
e.
Summarize the hazards of the chemicals being used.
b. Watch the You Tube video on how to use a Buchner funnel (a link is provided on the class website but you can also
enter this web address: http://www.youtube.com/watch?v=IyAkinMgklY&NR=1 .
Summarize the procedures in your lab notebook. Include procedures on the use of the Buchner funnel from the video above
Write and balance a chemical equation that predicts the behavior of mixing 2 aqueous solutions, one containing lead(II) nitrate
and the other containing potassium iodide. Determine the physical states and predict and identify of the solid product. Show
all your work in pen in your lab notebook.
Write a short paragraph describing what you expect to happen when these solutions are mixed.
Lab - ALL lab team members: Be sure to record ALL observations and measurements from ALL lab team members in black or blue
pen in your lab notebook. Make sure that each team member has contact information for all other team members. Select a team
leader, safety officer, and secretary. Team leader – your main job is to divide up responsibilities so that all team members are always
on task and that the work get’s done in the most efficient manner possible. Safety officer – your main job is to make sure that all team
members are behaving safely. Secretary – your main job is to make sure that all observations (including measurements) are recorded
especially when the other members of the team are busy with other tasks.
Lab team member #1
1. Label a scoopula for use with the
2.
3.
4.
5.
6.
7.
8.
9.
Lab team member #2
Lab team member #3
Carefully clean 2 small beakers or obtain 2 small,
Label a scoopula for use with the
lead(II) nitrate. Use that scoopula
clean plastic cups. Fill both beakers or cups with
potassium iodide. Use that
to weigh out ~ 1.00 g of lead(II)
~25 mL of distilled water (DO NOT use tap water). scoopula to weigh out ~ 1.00 g of
nitrate. Carefully pour all of the
Label one cup “Pb(NO3)2” and give to lab team
potassium iodide. Carefully pour all
member #1 and label the other “KI” and give to lab of the potassium iodide into the
lead(II) nitrate into the beaker or
cup labeled “Pb(NO3)2” by lab team team member #3. Prepare an ice water bath
beaker or cup labeled “KI” by lab
member #2. Stir with a glass
while lab team members #1 and #3 dissolve salts. team member #2. Stir with a glass
stirring rod until the salt dissolves.
Fill plastic bucket to the ¼ liter mark with ice and
stirring rod until the salt dissolves.
Carefully clean your stirring rod.
then put tap water in to that same mark.
Carefully clean your stirring rod.
Pour one of the 2 solutions into the other and then set the beaker in an ice water bath on the lab table and allow the solution to
stand.
While the solution is standing, prepare your filtering apparatus. You will need a 500 mL Erlenmeyer vacuum flask, a ring stand,
a ring stand clamp, a watch glass, a 2-part Buchner funnel, and a piece of 4.25 mm diameter. Clean, dry, and weigh the 2 parts
of the watch glass, the 2 parts of the Buchner funnel, and the filter paper (weigh each separately). Place your filter paper into
the funnel and dampen. Now return to your desk while the precipitate in your solution has time to settle.
When you return to the lab table carefully decant the liquid at the top of the beaker into the funnel. Warning: pour small amounts
of liquid at a time into the Buchner funnel. Too much liquid can cause the filter paper to float which allows your precipitate to
flow under the paper and into the vacuum flask. Attach the vacuum tubing to the side-arm on the faucet, turn the water—slowly
at first and then increasing the flow rate.
When all the semi-clear liquid has been poured out of the beaker and drained, you can scrape and pour the remaining wet solid
onto the funnel paper using a micro-spatula or wooden splint. Use a little distilled water to rinse out the beaker.
Carefully slide the filter paper out of the funnel and onto a watch glass. Label your watch glass. Place the watch glass, filter
paper, and product into the drying oven to dry. Before leaving class, you will place your watch glass, filter paper, and product
into a lab drawer to continue to dry overnight. Make sure that your watch glass is labeled so that no one else will mistakenly use
yours.
Except for the watch glass, filter paper, and material on the filter paper, wash, clean, and dry all glass and plastic ware and
leave it draining and drying on a towel(s) on the lab table.
When you return to the lab table, you will carefully retrieve the watch glass with the filter and product from the lab drawer.
Carefully place these on the balance and weigh them. Subtract the weight of the dry filter paper and watch glass to determine
the actual yield of your product. Carefully place your product and filter paper into the disposal container.
When you have finished with the watch glass, wash thoroughly, and dry it an and leave it to air dry on a paper towel on the lab
table.
Postlab
1. Before coming to class on the day after the lab (that means this is homework):
a.
Determine the limiting and excess reactants, the theoretical yield, % yield, and amount of excess reactant remaining in the
solution. Do ALL work on a separate sheet of paper and have it ready to turn in as homework. In your lab notebook
CLEARLY identify
1) the limiting reactant,
2) the excess reactant,
3) the amount of excess reactant that remained in the solution when the filtering was complete,
4) the solid product,
5) the ions that remained in solution,
6) the theoretical yield, and
7) the % yield.
MSDS Number: L3130 * * * * * Effective Date: 11/21/08 * * * * * Supercedes: 02/13/06
LEAD NITRATE
Potential Lab Hazards
to include in your lab
notebook:
1. Product Identification
Look for the boxes that show
you what hazards information to
write or summarize in your lab
notebook.
Synonyms: Lead (II) nitrate (1:1); lead dinitrate; nitric acid, lead (2+)
CAS No.: 10099-74-8
Molecular Weight: 331.23
Chemical Formula: Pb (NO3)2
Product Codes:
J.T. Baker: 2322
Mallinckrodt: 5744
2. Composition/Information on Ingredients
Ingredient
---------------------------------------
CAS No
------------
Lead Nitrate
10099-74-8
Percent
------------
Hazardous
---------
99 - 100%
Yes
Potential Lab Hazards –
3. Hazards Identification
Include this “Emergency Overview” in your
summary of hazards in your lab notebook.
Emergency Overview
-------------------------POISON! DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE. MAY BE
FATAL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT.
NEUROTOXIN. AFFECTS THE GUM TISSUE, CENTRAL NERVOUS SYSTEM, KIDNEYS, BLOOD AND
REPRODUCTIVE SYSTEM.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
----------------------------------------------------------------------------------------------------------Health Rating: 3 - Severe (Poison)
Flammability Rating: 0 - None
Summarize “Potential Health Effects” in your summary of
Reactivity Rating: 3 - Severe (Oxidizer)
hazards in your lab notebook. List only those things that
Contact Rating: 2 - Moderate (Life)
could
potentially
inPROPER
our lab.GLOVES
For example: you can
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT
& APRON;
VENToccur
HOOD;
Storage Color Code: Yellow (Reactive)
ignore “chronic exposure” because chronic exposure means
----------------------------------------------------------------------------------------------------------repeated exposure. If you have repeated exposure to lead
Potential Lab Hazards –
Potential Health Effects
----------------------------------
compounds, then you should summarize “chronic exposure”
in your lab notebook.
Inhalation:
Lead can be absorbed through the respiratory system. Local irritation of bronchia and lungs can occur and, in cases of acute exposure,
symptoms such as metallic taste, chest and abdominal pain, and increased lead blood levels may follow. See also Ingestion.
Ingestion:
POISON! The symptoms of lead poisoning include abdominal pain and spasms, nausea, vomiting, headache. Acute poisoning can lead
to muscle weakness, "lead line" on the gums, metallic taste, definite loss of appetite, insomnia, dizziness, high lead levels in blood and
urine with shock, coma and death in extreme cases. Nitrates entering the body by any route (ingestion, inhalation, or absorption), can
cause headache vomiting, dizziness, cyanosis, decreased blood pressure, and possibly respiratory paralysis.
Skin Contact:
Lead and lead compounds may be absorbed through the skin on prolonged exposure; the symptoms of lead poisoning described for
ingestion exposure may occur. Contact over short periods may cause local irritation, redness and pain.
Eye Contact:
Absorption can occur through eye tissues but the more common hazards are local irritation or abrasion.
Chronic Exposure:
Lead is a cumulative poison and exposure even to small amounts can raise the body's content to toxic levels. The symptoms of chronic
exposure are like those of ingestion poisoning; restlessness, irritability, visual disturbances, hypertension and gray facial color may
also be noted.
Aggravation of Pre-existing Conditions:
Persons with pre-existing kidney, nerve or circulatory disorders or with skin or eye problems may be more susceptible to the effects of
this substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Ingestion:
Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Get medical
attention.
Skin Contact:
Immediately flush skin with plenty of soap and waterSummarize
for at least 15in
minutes.
Remove contaminated
your summary
of hazardsclothing
in yourand
labshoes. Get medical
attention. Wash clothing before reuse. Thoroughly clean
shoes
before
reuse.
notebook those “Fire Fighting Measures” that describe fair
Eye Contact:
or explosion hazards. List only those things that could
Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention
potentially occur in our lab. For example: you can ignore
immediately.
Potential Lab Hazards –
5. Fire Fighting Measures
most of the “Special Information” that lists the special fire
fighting equipment that only professional firefighters
(firemen) would have.
Fire:
Not combustible but is a hazardous oxidizing material. In contact with easily oxidizable substances may cause ignition, violent
combustion or explosion. Increases the flammability of combustible materials.
Explosion:
Strong oxidants may explode when shocked, or if exposed to heat, flame, or friction. Also may act as initiation source for dust or
vapor explosions.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire. Do not allow water runoff to enter sewers or waterways.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece
operated in the pressure demand or other positive pressure mode. Lead nitrate can decompose to form toxic oxides of nitrogen and
lead in fire situations.
6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and
containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal. US Regulations (CERCLA)
require reporting spills and releases to soil, water and air in excess of reportable quantities. The toll free number for the US Coast
Guard National Response Center is (800) 424-8802.
7. Handling and Storage
Keep in a tightly closed container. Store in a cool, dry, ventilated area away from sources of heat or ignition. Protect against physical
damage. Store separately from reactive or combustible materials, and out of direct sunlight. Isolate from incompatible substances.
Areas in which exposure to lead metal or lead compounds may occur should be identified by signs or appropriate means, and access to
the area should be limited to authorized persons. Containers of this material may be hazardous when empty since they retain product
residues (dust, solids); observe all warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
For lead, metal and inorganic dusts and fumes, as Pb:
-OSHA Permissible Exposure Limit (PEL): 0.05 mg/m3 (TWA)
For lead, elemental and inorganic compounds, as Pb:
-ACGIH Threshold Limit Value (TLV): 0.05 mg/m3 (TWA), A3 animal carcinogen
ACGIH Biological Exposure Indices (BEI): 30 ug/100ml, notation B (see actual Indices for more information).
For lead, inorganic:
-NIOSH Recommended Exposure Limit (REL): 0.1 mg/m3 (TWA)
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits. Local
exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of
it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most
recent edition, for details.
Personal Respirators (NIOSH Approved):
If the exposure limit is exceeded and engineering controls are not feasible, a half-face high efficiency particulate respirator (NIOSH
type N100 filter) may be worn for up to ten times the exposure limit or the maximum use concentration specified by the appropriate
regulatory agency or respirator supplier, whichever is lowest. A full-face piece high efficiency particulate respirator (NIOSH type
N100 filter) may be worn up to 50 times the exposure limit, or the maximum use concentration specified by the appropriate regulatory
agency or respirator supplier, whichever is lowest. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are present, use a
NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-facepiece positivepressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection:
Wear impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.
Eye Protection:
Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain
and quick-drench facilities in work area.
Other Control Measures:
Eating, drinking, and smoking should not be permitted in areas where solids or liquids containing lead compounds are handled,
processed, or stored. See OSHA substance-specific standard for more information on personal protective equipment, engineering and
work practice controls, medical surveillance, record keeping, and reporting requirements. (29 CFR 1910.1025).
9. Physical and Chemical Properties
Appearance:
Colorless crystals.
Odor:
Odorless.
Solubility:
50 gm in 100 gm of water.
Specific Gravity:
4.53
pH:
3.0 - 4.0 (20% aq. solution)
% Volatiles by volume @ 21C (70F): 0
Boiling Point:
No information found.
Melting Point:
470C (878F)
Vapor Density (Air=1):
11.0
Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
Toxic metal fumes may form when heated to decomposition.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Ammonium thiocyanate, powdered carbon, lead hypophosphite, hydrogen peroxide, combustibles and organic materials.
Conditions to Avoid:
Heat, flames, ignition sources and incompatibles.
11. Toxicological Information
Toxicological Data:
Investigated as a tumorigen, mutagen, reproductive effector.
Reproductive Toxicity:
Lead and other smelter emissions are human reproductive hazards. (Chemical Council on Environmental Quality; Chemical
Hazards to Human Reproduction, 1981).
Carcinogenicity:
For lead and inorganic lead compounds:
EPA / IRIS classification: Group B2 - Probable human carcinogen, sufficient animal evidence.
--------\Cancer Lists\--------------------------------------------------------NTP Carcinogen--Ingredient
Known
Anticipated
IARC Category
-------------------------------------------------------------Lead Nitrate (10099-74-8)
No
No
2B
12. Ecological Information
Environmental Fate:
For lead and inorganic lead compounds:
When released into the soil, this material is not expected to leach into groundwater. This material may bioaccumulate to some
extent.
Environmental Toxicity:
No information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to a RCRA approved waste
facility. Processing, use or contamination of this product may change the waste management options. State and local disposal
regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal,
state and local requirements.
14. Transport Information
Domestic (Land, D.O.T.)
----------------------Proper Shipping Name: RQ, LEAD NITRATE
Hazard Class: 5.1, 6.1
UN/NA: UN1469
Packing Group: II
Information reported for product/size: 100KG
International (Water, I.M.O.)
----------------------------Proper Shipping Name: LEAD NITRATE
Hazard Class: 5.1, 6.1
UN/NA: UN1469
Packing Group: II
Information reported for product/size: 100KG
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\--------------------------------Ingredient
TSCA EC
Japan Australia
----------------------------------------------- ---- --- ----- --------Lead Nitrate (10099-74-8)
Yes Yes
Yes
Yes
--------\Chemical Inventory Status - Part 2\----------------------------------Canada-Ingredient
Korea DSL
NDSL Phil.
----------------------------------------------- ----- ------ ----Lead Nitrate (10099-74-8)
Yes
Yes
No
No
--------\Federal, State & International Regulations - Part 1\----------------SARA 302------SARA 313-----Ingredient
RQ
TPQ
List Chemical Catg.
----------------------------------------- ---------- -------------Lead Nitrate (10099-74-8)
No
No
No
Lead cmpd/ni
--------\Federal, State & International Regulations - Part 2\----------------RCRA-TSCAIngredient
CERCLA
261.33
8(d)
----------------------------------------- ---------------Lead Nitrate (10099-74-8)
10
No
No
Chemical Weapons Convention: No
TSCA 12(b): No
CDTA: No
SARA 311/312: Acute: Yes
Chronic: Yes Fire: Yes Pressure: No
Reactivity: No
(Pure / Solid)
WARNING:
THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND
BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
Australian Hazchem Code: 2Y
Poison Schedule: S6
WHMIS:
This MSDS has been prepared according to the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS
contains all of the information required by the CPR.
16. Other Information
NFPA Ratings: Health: 3 Flammability: 0 Reactivity: 1 Other: Oxidizer
Label Hazard Warning:
POISON! DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE. MAY BE
FATAL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT.
NEUROTOXIN. AFFECTS THE GUM TISSUE, CENTRAL NERVOUS SYSTEM, KIDNEYS, BLOOD AND
REPRODUCTIVE SYSTEM.
Label Precautions:
Keep from contact with clothing and other combustible materials.
Do not breathe dust.
Do not get in eyes, on skin, or on clothing.
Use only with adequate ventilation.
Keep container closed.
Do not store near combustible materials.
Store in a tightly closed container.
Wash thoroughly after handling.
Label First Aid:
If swallowed, induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious
person. If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. In case
of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes. Remove contaminated clothing and
shoes. Wash clothing before reuse. In all cases, get medical attention.
Product Use:
Laboratory Reagent.
Revision Information:
No Changes.
Disclaimer:
************************************************************************************************
Mallinckrodt Baker, Inc. provides the information contained herein in good faith but makes no representation as to its
comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling
of the material by a properly trained person using this product. Individuals receiving the information must exercise
their independent judgment in determining its appropriateness for a particular purpose. MALLINCKRODT BAKER,
INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING
WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH
THE INFORMATION REFERS. ACCORDINGLY, MALLINCKRODT BAKER, INC. WILL NOT BE
RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.
************************************************************************************************
Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)
MSDS Number: P5906 * * * * * Effective Date: 02/03/09 * * * * * Supercedes: 11/09/06
POTASSIUM IODIDE
Potential Lab Hazards
to include in your lab
notebook:
1. Product Identification
There are NO boxes on this
MSDS for potassium iodide to
show you what hazards
information to write or
summarize in your lab
notebook. You should use the
boxes on the lead nitrate MSDS
as your guide.
Synonyms: Potide; hydriodic acid, potassium salt; Iodic acid, potassium salt
CAS No.: 7681-11-0
Molecular Weight: 166.0
Chemical Formula: KI
Product Codes:
J.T. Baker: 3162, 3163, 3165, 3167, 3168
Mallinckrodt: 1103, 1112, 1113, 1115, 1117, 1123, 1127, 1200, 1220, 6334, 6336
2. Composition/Information on Ingredients
Ingredient
---------------------------------------
CAS No
------------
Potassium Iodide
7681-11-0
Percent
------------
Hazardous
---------
90 - 100%
Yes
3. Hazards Identification
Emergency Overview
-------------------------CAUTION! MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
----------------------------------------------------------------------------------------------------------Health Rating: 2 - Moderate (Life)
Flammability Rating: 0 - None
Reactivity Rating: 2 - Moderate
Contact Rating: 2 - Moderate
Lab Protective Equip: GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
Storage Color Code: Green (General Storage)
----------------------------------------------------------------------------------------------------------Potential Health Effects
---------------------------------Inhalation:
May cause irritation to the respiratory tract. Symptoms may include coughing and shortness of breath.
Ingestion:
Large oral doses may cause irritation to the gastrointestinal tract.
Skin Contact:
May cause irritation with redness and pain.
Eye Contact:
May cause irritation, redness and pain.
Chronic Exposure:
Chronic ingestion of iodides may produce "iodism," which may be manifested by skin rash, running nose, headache and
irritation of mucous membranes. Weakness, anemia, loss of weight, and general depression may also occur.
Aggravation of Pre-existing Conditions:
No information found.
4. First Aid Measures
Inhalation:
Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion:
Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Wash clothing
before reuse. Thoroughly clean shoes before reuse. Get medical attention if irritation develops.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting upper and lower eyelids occasionally. Get medical
attention if irritation persists.
5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard.
Explosion:
Not considered to be an explosion hazard.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece
operated in the pressure demand or other positive pressure mode.
6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and
containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal.
7. Handling and Storage
Keep in a tightly closed light-resistant container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate
from incompatible substances. Prolonged storage is not recommended because of possible degradation problems, including
yellowing of the potassium iodide product. Always inspect the potassium iodide's color and overall quality before use.
Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all
warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
-ACGIH (TWA) for Iodides:
0.01 ppm for inhalable fraction and vapor.
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits.
Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing
dispersion of it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of
Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved):
For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate
respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are
present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face
positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient
atmospheres.
Skin Protection:
Gloves and lab coat, apron or coveralls.
Eye Protection:
Use chemical safety goggles. Maintain eye wash fountain and quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance:
White crystals.
Odor:
Odorless.
Solubility:
140 grams/100 gm in water.
Density:
3.1
pH:
7-9
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
1330C (2426F)
Melting Point:
680C (1256F)
Vapor Density (Air=1):
No information found.
Vapor Pressure (mm Hg):
1 @ 745C (1373F)
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage. On long exposure to air becomes yellow due to release of iodine.
Hazardous Decomposition Products:
Oxides of the contained metal and halogen, possibly also free, or ionic halogen.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Diazonium salts; diisopropyl peroxydicarbonate; oxidants; bromine and chlorine trifluorides; fluorine perchlorate; calomel
(mercurous chloride); potassium chlorate; metallic salts; tartaric and other acids.
Conditions to Avoid:
Air, moisture, light and incompatibles.
11. Toxicological Information
Investigated as a mutagen, reproductive effector.
--------\Cancer Lists\--------------------------------------------------------NTP Carcinogen--Ingredient
Known
Anticipated
IARC Category
-------------------------------------------------------------Potassium Iodide (7681-11-0)
No
No
None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility.
Processing, use or contamination of this product may change the waste management options. State and local disposal
regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal,
state and local requirements.
14. Transport Information
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\--------------------------------Ingredient
TSCA EC
Japan Australia
----------------------------------------------- ---- --- ----- --------Potassium Iodide (7681-11-0)
Yes Yes
Yes
Yes
--------\Chemical Inventory Status - Part 2\----------------------------------Canada-Ingredient
Korea DSL
NDSL Phil.
----------------------------------------------- ----- ------ -----
Potassium Iodide (7681-11-0)
Yes
Yes
No
Yes
--------\Federal, State & International Regulations - Part 1\----------------SARA 302------SARA 313-----Ingredient
RQ
TPQ
List Chemical Catg.
----------------------------------------- ---------- -------------Potassium Iodide (7681-11-0)
No
No
No
No
--------\Federal, State & International Regulations - Part 2\----------------RCRA-TSCAIngredient
CERCLA
261.33
8(d)
----------------------------------------- ---------------Potassium Iodide (7681-11-0)
No
No
No
Chemical Weapons Convention: No
TSCA 12(b): No
SARA 311/312: Acute: Yes
Chronic: Yes Fire: No
Reactivity: No
(Pure / Solid)
CDTA: No
Pressure: No
Australian Hazchem Code: None allocated.
Poison Schedule: None allocated.
WHMIS:
This MSDS has been prepared according to the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS
contains all of the information required by the CPR.
16. Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning:
CAUTION! MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT.
Label Precautions:
Avoid contact with eyes, skin and clothing.
Avoid breathing dust.
Keep container closed.
Use with adequate ventilation.
Wash thoroughly after handling.
Label First Aid:
In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes. Get medical attention if irritation
develops or persists. If inhaled, remove to fresh air. Get medical attention for any breathing difficulty.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 8.
Disclaimer:
************************************************************************************************
Mallinckrodt Baker, Inc. provides the information contained herein in good faith but makes no representation as to its
comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling
of the material by a properly trained person using this product. Individuals receiving the information must exercise
their independent judgment in determining its appropriateness for a particular purpose. MALLINCKRODT BAKER,
INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING
WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH
THE INFORMATION REFERS. ACCORDINGLY, MALLINCKRODT BAKER, INC. WILL NOT BE
RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.
************************************************************************************************
Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)