Potassium permanganate
9/8/11 3:24 PM
GESTIS-Stoffdatenbank
Potassium permanganate
IDENTIFICATION
Potassium permanganate
Permanganic acid potassium salt
Permanganate of potassium
ZVG number:
CAS number:
INDEX number:
EC number:
4070
7722-64-7
025-002-00-9
231-760-3
CHARACTERISATION
SUBSTANCE GROUP CODE
122300
136700
Potassium compounds
Manganese compounds
STATE OF AGGREGATION
At 1013 mbar/20 °C: solid
PROPERTIES
Form:
Colour:
Odour:
crystals
violet
odourless
CHEMICAL CHARACTERISATION
Oxidizing solid.
The substance itself does not burn, but in contact with combustible substances it increases the risk of fire
and can fuel any existing fire substantially.
Soluble in water.
Acute or chronic health hazards result from the substance.
The substance is dangerous for the environment.
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Potassium permanganate
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(see: CLASSIFICATION/LABELLING).
FORMULA
KMnO4
Molar mass:
158,03 g/mol
TOXICOLOGY / ECOTOXICOLOGY
TOXICOLOGICAL DATA
LD50 oral rat:
Reference:
1090 mg/kg
American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.
Source:
02071
ECOTOXICOLOGICAL DATA
LC50 Fish (96 hours)
Minimum:
0,348 mg/l
Maximum:
7,52 mg/l
Median:
1,72 mg/l
Study number:
69
Reference:
Marking, L.L., and T.D. Bills 1975. Toxicity of Potassium Permanganate to Fish and its
Effectiveness for Detoxifying Antimycin. Trans.Am.Fish.Soc. 104(3):579-583
EC50 Crustaceans (48 hours)
Minimum:
0,08 mg/l
Maximum:
0,08 mg/l
Median:
0,08 mg/l
Study number:
1
Reference:
Office of Pesticide Programs 2000. Pesticide Ecotoxicity Database (Formerly:
Environmental Effects Database (EEDB)). Environmental Fate and Effects Division,
U.S.EPA, Washington, D.C.
EC50 Algae (72 or 96 hours)
Test duration:
72 Stunden
Minimum:
0,45 mg/l
Maximum:
0,45 mg/l
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Median:
Study number:
Reference:
0,45 mg/l
1
Paixao, S.M., L. Silva, A. Fernandez, K. O'Rourke, E. Mendonca, and A. Picado 2008.
Performance of a Miniaturized Algal Bioassay in Phytotoxicity Screening.
Ecotoxicology 17(3):165-171
Source:
02072
PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT
Melting point:
The substance decomposes when heated (see decomposition temperature).
DENSITY
DENSITY
Value:
Temperature:
2,70 g/cm³
20 °C
BULK DENSITY
Value:
1300 ... 1600 kg/m³
SOLUBILITY IN WATER
Concentration:
Temperature:
28,3 g/l
0 °C
Concentration:
Temperature:
44 g/l
10 °C
Concentration:
Temperature:
64 g/l
20 °C
Concentration:
Temperature:
91 g/l
30 °C
Concentration:
Temperature:
125 g/l
40 °C
Concentration:
Temperature:
224 g/l
60 °C
Concentration:
324 g/l
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Potassium permanganate
Temperature:
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75 °C
pH-VALUE
pH-value:
Temperature:
Concentration:
7 ... 9
20 °C
20 g/l
HAZARDOUS REACTIONS
Decomposition temperature: 240 °C
Decompositon products:
Oxygen
Hazardous chemical reactions:
Risk of explosion in contact with:
ammonium compounds; acetic acid/ friction; sugar (rare); alcohols/ sulphuric acid; formaldehyde;
concentrated mineral acids; organic substances; sulphuric acid; hydrochloric acid -> chlorine; strong
reducing agents
The substance can react dangerously with:
acetylacetone; alcohols; dimethyl sulphoxide; acetaldehyde; antimony; benzaldehyde; inflammable liquids;
dichloromethylsilane; ethylene glycol; hydrogen fluoride; anhydrous glycerin -> self-ignition; mannitol;
hydroxylamine; glycerin/ sulphur -> self-ignition; oxalic acid; triethanolamine; trisulphane; wood + humidity
or friction; lactic acid; organic oxygen compounds; sulphuric acid + organic substances; arsenic; dimethyl
formamide; potassium chloride/ sulphuric acid; pyridine; sulphur/ heat; titanium (heat); glycerine nitrate +
cellulose nitrate; mineral wool/ slag wool; cellulose nitrate/ impact; phosphorus/ friction; trifluoroacetic acid;
trifluoroacetic anhydride; hydrogen fluoride; coal (heat); hydrogen peroxide; aluminium carbide (heat)
OCCUPATIONAL HEALTH AND FIRST AID
TOXIC EFFECTS
Annotation:
At present time the occupational health information for this
substance is only available in german.
Please consult our database in german.
FIRST AID
Annotation:
At present time the first aid information for this substance is only available in German. Please consult our
database in German.
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Potassium permanganate
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HANDLING AND USAGE
USAGE
The substance is used as:
- oxidizing agent for organic synthesises
- algicide and for removing manganese and iron during
the treatment of drinking water
The substance is used for:
- cleaning steel, wire and profile surfaces
The substance is used in:
- photography
TECHNICAL MEASURES - HANDLING
Workplace:
Provision of good ventilation in the working area.
The floor should not have a floor drain.
Washing facility at the workplace required.
When handling excessive amounts of the substance an emergency shower is required.
Equipment:
Use closed apparatus if possible.
If release of the substance cannot be prevented, then it should be suctioned off at the point of exit.
Consider emission limit values, a purification of waste gases if necessary.
Label containers and pipelines clearly.
Unsuitable materials:
Copper
Zinc
Plastics have to be proven for their resistibility.
Potassium permanganate can also ignite various plastics
(e.g. polypropylene) on intensive contact.
Advice on safer handling:
Take care to maintain clean working place.
The substance must not be present at workplaces in quantities above that required for work to be
progressed.
Do not leave container open.
Use leak-proof equipment with exhaust for refilling or transfer.
Avoid spillage.
Fill only into labelled container.
Avoid rising dust.
Do not transport together with incompatible substances.
Use an appropriate exterior vessel when transporting in fragile containers.
Cleaning and maintenance:
Use protective equipment while cleaning if necessary.
Avoid dust formation. Dust formation that cannot be avoided must be collected regularly.
Use a tested industrial vacuum cleaner or suction device.
Do not raise dust while cleaning.
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Use of a blower for cleaning is not permitted.
Alternative: clean damp.
Only conduct maintenance and other work on or in the vessel or closed spaces after obtaining written
permission.
TECHNICAL MEASURES - STORAGE
Storage:
Do not use any food containers - risk of mistake.
Containers have to be labelled clearly and permanently.
Store in the original container as much as possible.
Keep container tightly closed.
Storage temperature: Without any limitation.
Store in a dry place.
Store apart from sources if ignition and heat.
Install sufficiently large collection rooms (depressions, walls, or stable freestanding walls).
Protect from overheating/heating up.
Conditions of collocated storage:
Storage class 5.1 B (Oxidizing substances)
Only substances of the same storage class should be stored together.
Collocated storage with the following substances is prohibited:
- Pharmaceuticals, foods, and animal feeds including additives.
- Infectious, radioactive und explosive substances.
- Gases.
- Aerosols (spray bottles).
- Other explosive substances of storage class 4.1A.
- Spontaneously flammable substances.
- Substances liberating flammable gases in contact with water.
- Organic peroxides and self reactive substances.
Under certain conditions the collocated storage with the following sub-stances is permitted (For more
details see TRGS 510):
- Flammable liquids of storage class 3.
- Flammable solid substances or desensitized substances of storage class 4.1B.
- Ammonium nitrate and preparations containing ammonium nitrate.
- Combustible and non combustible acutely toxic substances of stora-ge classes 6.1A and 6.1B.
- Combustible toxic or chronically acting substances of storage class 6.1C.
- Noncombustible toxic or chronically acting substances of storage class 6.1D.
- Combustible corrosive substances of storage class 8A.
- Combustible liquids of storage class 10.
- Combustible solids of storage class 11.
The substance should not be stored with substances with which ha-zardous chemical reactions are
possible.
TECHNICAL MEASURES - FIRE AND EXPLOSION PROTECTION
Technical, constructive measures:
Substance is non-combustible, but has an oxidizing effect.
Fire fighting equipment must be available.
Precaution on handling:
Keep away from sources of ignition (e.g. open flames, heat sources and sparks).
Observe the smoking prohibition!
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Absolutely no welding in the working area.
Only work with vessels and lines after these have been thoroughly rinsed.
Work done with fire or open flame should only be carried out with written permission if the risk of fire or
explosion cannot be completely eliminated.
Filter the solutions only with glass wool, glass chips, or ceramic filters. Do not use any filtration materials
made of paper which risks ignition after drying. Do not leave any cleaning rags lying in the open.
Keep away from combustible materials.
ORGANISATIONAL MEASURES
Instruction on the hazards and the protective measures using instruction manual (TRGS 555) are required
with signature if just more than one minor hazard was detected.
Instruction must be provided before employment and then at a minimum of once per annum thereafter.
An escape and rescue plan must be prepared when the location, scale, and use of the work-site so
demand.
It must be assured that the workplace limit values are being maintained. If the limit values are exceeded,
additional protection measures are necessary.
The measurements must be recorded and kept on file.
Observe the restrictions on juvenile employment as defined in the "Jugendarbeitsschutzgesetz".
Observe the restrictions on the employment of expectant and nursing mothers as defined in the
"Mutterschutzverordnung".
PERSONAL PROTECTION
Body protection:
Depending on the risk, wear a tight, long apron and boots or suitable chemical protection clothing.
Wear dust tight protective clothing.
Respiratory protection:
In an emergency (e.g.: unintentional release of the substance, exceeding the occupational exposure limit
value) respiratory protection must be worn. Consider the maximum period for wear.
Respiratory protection: Particle filter P2 or P3, colour code white.
For details on the requirements and the maximum concentrations for use, consult the "Regeln für den
Einsatz von Atemschutzgeräten" (BGR 190).
Respiratory protection: insulating device.
Use for concentrations above the usage limits for filter devices, for oxygen concentrations below 17%
volume, or in circumstances which are unclear.
Eye protection:
Sufficient eye protection should be worn.
Wear glasses with side protection.
Hand protection:
The use of resistant protective gloves is recommended.
The following information is valid for aqueous, saturated solutions of the salt.
Also for a potassium permanganate solution (6%) :
The following materials are suitable for protective gloves (Permeation time >= 8 hours):
Natural rubber/Natural latex - NR (0,5 mm) (use non-powdered and allergen free products)
Polychloroprene - CR (0,5 mm)
Nitrile rubber/Nitrile latex - NBR (0,35 mm)
Fluoro carbon rubber - FKM (0,4 mm)
Polyvinyl chloride - PVC (0,5 mm)
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The times listed are suggested by measurements taken at 22 °C and constant contact. Temperatures
raised by warmed substances, body heat, etc. and a weakening of the effective layer thickness caused by
expansion can lead to a significantly shorter breakthrough time. In case of doubt contact the gloves'
manufacturer. A 1.5-times increase / decrease in the layer thickness doubles / halves the breakthrough
time. This data only applies to the pure substance. Transferred to mixtures of substances, these figures
should only be taken as an aid to orientation.
Skin protection:
Skin protection preparations do not protect as effectively against the substance as protective gloves.
Therefore suitable protective gloves should be preferred as far as possible.
If no protective gloves can be worn apply water-insoluble skin protection preparations to the clean skin
and thoroughly rub it in before beginning work and after each break.
The skin must be washed with soap and water before breaks and at the end of work.
Apply fatty skin-care products after washing.
Industrial hygiene:
Foods, beverages and other articles of consumption must not be consumed at the work areas. Suitable
areas are to be designated for these purposes.
Avoid contact with skin. Do not allow the substance or its solution to dry on the skin. In case of contact
wash skin.
Avoid contact with eyes. In case of contact rinse the affected eye(s).
Avoid inhalation of dust.
Avoid contact with clothing. Contaminated clothes must be exchanged and cleaned carefully.
Before cleaning clothes rinse thoroughly first in water.
Provide washrooms with showers and if possible rooms with separate storage for street clothing and work
clothing.
DISPOSAL CONSIDERATIONS
Hazardous waste according to Waste Catalogue Ordinance (AVV).
If there is no way of recycling it must be disposed of in compliance with the respective national and local
regulations.
Collection of small amounts of substance:
Do not put/place waste into sink or dust bin.
Convert into a less harmful reduction product by introducing in a sodium thiosulfat solution, if necessary
under acidification.
Place in collecting containers for salt solutions, adjust for a pH value of 6 - 8, or
place in collecting containers for toxic anorganic residues as well as heavy-metal salts and their solutions.
Collection vessels must be clearly labelled with a systematic description of their contents and with the
hazard symbol and the R and S phrases. Store the vessels in a well-ventilated location. Entrust them to
the appropriate authorities for disposal.
ACCIDENTAL RELEASE MEASURES
Evacuate area. Warn affected surroundings.
Wear respiratory protection, eye protection, hand protection and body protection (see chapter Personal
Protection).
Carefully sweep up, gather and remove. Avoid rising dust.
Afterwards ventilate area and wash spill site.
Endangerment of drinking water and environment:
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Prevent escape into water, drainage, sewer, or the ground. A hazard for drinking water sources when only
small quantities get into groundwater. Inform the responsible authorities.
Maybe a hazard to the surrounding atmosphere if larger quantities of the substance escape. Inform the
authorities.
FIRE FIGHTING MEASURES
Instructions:
Substance is non-combustible, but has an oxidizing effect.
In case of ambient fire:
Cool surrounding containers with water spray.
If possible, take container out of dangerous zone.
Rise in pressure and risk of bursting when heating.
Stay on upwind side.
Do not allow runoff to get into the sewage system.
Special protective equipment:
Wear self-contained breathing apparatus.
In case of violent hazardous effect:
Wear a special tightly sealed suit.
Plastic fibres can be affected after longer direct exposure.
REGULATIONS
GHS-CLASSIFICATION AND LABELLING
Classification:
Oxidising solids, Category 2; H272
Acute toxicity, Category 4, oral; H302
Hazardous to the aquatic environment, Acute Category 1; H400
Hazardous to the aquatic environment, Chronic Category 1; H410
Signal Word:
"Danger"
Hazard Statement - H-phrases:
H272: May intensify fire; oxidiser.
H302: Harmful if swallowed.
H400: Very toxic to aquatic life.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement - P-phrases:
P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P273: Avoid release to the environment.
Manufacturer's specification by Merck
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Potassium permanganate
Source:
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01211
The substance is listed in appendix VI, table 3.1 of CLP regulation.
Source:
99999
GHS-CLASSIFICATION OF MIXTURES
The classification of mixtures containing this substance results from Annex 1 of Regulation (EC)
1272/2008.
Source:
99999
EUROPEAN CLASSIFICATION
O; R8
Xn; R22
N; R50/53
O Oxidizing
Xn Harmful
N Dangerous for the environment
Risk phrases (R-phrases):
R8
Contact with combustible material may cause fire
R 22
Harmful if swallowed
R 50/53
Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic
environment
Safety advices (S-phrases):
S (2)
Keep out of the reach of children (if sold to the general public)
S 60
This material and its container must be disposed of as hazardous waste
S 61
Avoid release to the environment. Refer to special instructions/safety data sheets.
EU classification according to GHS regulation,
appendix VI, table 3.2
(formerly according to 25th adaption directive 98/98/EEC).
Source:
07500
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CLASSIFICATION OF MIXTURES
The classification of preparations/mixtures containing this substance results from the directive on
dangerous preparations (1999/45/EC).
Source:
99999
WORKPLACE LABELLING ACCORDING TO GERMAN ASR A1.3
Prohibition label:
No fire, open flame and smoking
Warning label:
Caution - oxidizing material
Caution - harmful or irritant material
Precept label:
Use safety goggles
Wear safety gloves
GERMAN WATER HAZARD CLASS
Substance No:
1936
WGK 3 - severe hazard to waters
Classification according to Annex 3 of the Administrative Regulation of Substances Hazardous to Water
(VwVwS)
TECHNICAL INSTRUCTIONS ON AIR QUALITY CONTROL (TA LUFT)
Chapter 5.2.2 Inorganic dusts
Class III
Also with the presence of several substances of the same
class, the following values are in all not allowed to be
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exceeded in the exhaust gas:
Mass flow:
5 g/hr
or
Mass concentration: 1 mg/m³
Specified as Mn.
TRANSPORT REGULATIONS
UN Number:
1490
Shipping name: Potassium permanganate, solid
Hazard Identification Number: 50
Class: 5.1 (Oxidizing Agents)
Packing Group: II (medium danger)
Danger Label: 5.1
Special labelling: Symbol (fish and tree)
Tunnel restrictions:
Passage forbidden through tunnels of category E.
TRGS 900 - GERMAN OCCUPATIONAL EXPOSURE LIMIT VALUES
0,5 mg/m³
with reference to the inhalable fraction
Peak limitation: Excursion factor 4
There is no reason to fear a risk of damage to the developing embryo or foetus when AGW and BGW are
adhered to.
Scope:
Manganese compounds, inorganic
calculated as manganese
Source:
05350
RECOMMENDATIONS OF MAK-COMMISSION
This data is recommended by scientific experience and is not established law.
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0,5 mg/m³
with reference to the inhalable fraction
Limitation of exposure peaks: Excursion factor 1
Duration 15 min, mean; 4 times per shift; interval 1 hour
Pregnancy: Group C
There is no reason to fear a risk of damage to the developing embryo or foetus when MAK and BAT
values are adhered to.
inorganic manganese compounds
Source:
08096
GERMAN BIOLOGICAL EXPOSURE INDECES
Measured parameter:
Manganese
Value:
20 µg/l
Sampling time:
for long-term exposure:
after several shifts
end of exposure/end of shift
Assay material:
Whole blood
inorganic manganese combounds
Source:
05347
GERMAN ORDINANCE OF FAILURE
Annex I - No:
3
Threshold for operating range to §1 sec. 1
- Record 1:
50000 kg
- Record 2:
200000 kg
Scope: oxidising substances
Please note: In the GESTIS database only the lowest amount threshold of a substance is given. If a
substance has several classifications, use must be made of the amount threshold from appendix I which
corresponds to the respective classification.
FURTHER REGULATIONS
TRGS 200
Einstufung und Kennzeichnung von Stoffen, Zubereitungen und Erzeugnissen; Ausgabe Februar 2007,
berichtigt Februar 2010, mit Änderungen und Ergänzungen August 2010
TRGS 201
Einstufung und Kennzeichnung von Abfällen zur Beseitigung beim Umgang; Ausgabe Juli 2002
TRGS 400
Gefährdungsbeurteilung für Tätigkeiten mit Gefahrstoffen; Ausgabe Januar 2008
TRGS 555
Betriebsanweisung und Information der Beschäftigten; Ausgabe Februar 2008; geändert und ergänzt Juli
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2009
TRGS 600
Substitution; Ausgabe August 2008
TRGS 402
Ermitteln und Beurteilen der Gefährdungen bei Tätigkeiten mit Gefahrstoffen: Inhalative Exposition;
Ausgabe Januar 2010
TRGS 420
Verfahrens- und stoffspezifische Kriterien (VSK) für die Gefährdungsbeurteilung; Ausgabe Januar 2006;
zuletzt geändert und ergänzt Februar 2010
TRGS 500
Schutzmaßnahmen; Ausgabe Januar 2008, ergänzt Mai 2008
TRGS 510
Lagerung von Gefahrstoffen in ortsbeweglichen Behältern; Ausgabe Oktober 2010
TRGS 800
Brandschutzmaßnahmen; Ausgabe Dezember 2010
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