Material Safety Data Sheet
Section 1 – Chemical Product and Company Identification
Catalog Numbers: MO3700-H, MO3700-E, MO3700-I, MO3700-J, MO3700-K, MO3700-M
Product Identity: Mercuric Oxide
Chemical Family: Not Applicable
Synonyms: Yellow Oxide of Mercury; Mercury Monoxide
Recommended Use: Laboratory chemicals
Manufacturer’s Name: AquaPhoenix Scientific, Inc., 9 Barnhart Dr., Hanover, PA 17331
Emergency Contact Number (24hr): Chemtel (800) 255-3924
Issue Date: 07/11/12
Revision Date: 7/30/12
Section 2 – Hazard Identification
Emergency Overview Highly toxic. Poison! Causes digestive, respiratory tract, eye and skin burns.
Appearance: Yellow to orange-yellow solid
Odor: odorless
Target Organs: blood, kidneys, lungs, the nervous system, the reproductive system, liver, mucous
membranes.
Potential Health Effects/ Routes of Exposure:
Eyes: May cause severe eye irritation
Skin: May cause severe skin irritation.
Ingestion: May be fatal if swallowed. May cause kidney damage. May cause severe digestive tract
irritation. Can cause nervous system damage.
Inhalation: May cause severe irritation of the respiratory tract. May cause effects similar to those
described for ingestion.
Chronic Effect / Carcinogenicity: Repeated exposure can cause Mercury poisoning with tremors,
personality changes, memory and concentration difficulties, and gum problems
Aggravated Medical Conditions: None reported
These chemicals are not considered hazardous by OSHA.
See section 11 for toxicological information. See section 12 for potential environmental effects.
Section 3 –Composition, Information on Ingredients
MERCURIC OXIDE, CAS# 21908-53-2
Section 4 – First Aid
Eyes: Flush eyes with water for at least 15 minutes. Get medical aid immediately.
Skin: Flush with water for 15 minutes. Remove contaminated clothing and shoes. Get medical aid
immediately .
Ingestion: DO NOT induce vomiting. Dilute with milk or water. Get medical aid immediately.
Inhalation: Remove to fresh air. Give artificial respiration if necessary. If breathing is difficult, give
oxygen. Get medical aid immediately. DO NOT use mouth-to-mouth resuscitation.
Notes to Physician Treat symptomatically.
Section 5 – Fire Fighting Measures
Flash Point: No information Available Autoignition Temperature No information Available
Explosion Limits Upper No data available
Lower No data available
Extinguishing Media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Unsuitable Extinguishing Media: No information Available
Fire & Explosion Hazards: No information Available
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Fire Fighting Instructions / Equipment: Use normal procedures. Use protective clothing. Use NIOSHapproved breathing equipment.
Hazardous Combustion Products: Irritating and highly toxic gases may be generated by thermal
decomposition or combustion
Sensitivity to mechanical impact No information available.
Sensitivity to static discharge No information available.
Specific Hazards Arising from the Chemical No information available.
NFPA Rating: (estimated) Health: 3; Flammable: 0; Reactivity: 0
Section 6 – Accidental Release Measures
Personal Precautions Use proper personal protective equipment. Avoid contact with skin, eyes and
clothing.
Methods for Containment and Clean Up Clean up spill immediately. Vacuum or sweep up material and
place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
Section 7 – Handling and Storage
Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use
with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and
clothing. Keep container tightly closed. Keep from contacting clothing or other combustibles. Do not
breathe dust, mist, or vapor. Do not ingest or inhale. Extreme care should always be taken to prevent
skin and gastrointestinal absorption because these routes of entry can greatly increase the total body
burden
Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from
incompatible substances. Store protected from light.
Section 8 – Exposure Controls, Personal Protection
MERCURIC OXIDE, CAS# 21908-53-2, ACGIH TLV: 0.025 mg/m3, OSHA PEL: NA
Engineering Measures/ General Hygiene: Use adequate general or local ventilation to keep airborne
concentrations low. Ensure eyewash and safety showers are available.
Personal Protection Equipment: Skin Protection: Chemical resistant gloves.
Eye/Face Protection: Safety Glasses or goggles. Respiratory Protection: Use adequate general or
local ventilation to keep airborne concentrations low.
Section 9 – Physical and Chemical Properties
Appearance/Physical State: Yellow to orange-yellow solid
Odor: odorless
% Volatility: No Information Available
Boiling Point: Not available
Specific Gravity: 11.14 (Water = 1)
Melting Point: Decomposes (500°C or 932°F) Vapor Pressure: Not Available
Vapor Density: Not available
Flash Point: Not Applicable
Evaporation Rate: Not available
Coefficient of water/oil distribution: Not Available
pH: Not available
Odor Threshold: Not Available
Flammability: No Information Available
Decomposition Temperature: Not Available
Solubility: Insoluble
Partition Coefficient n-octanol/water: No data
available
Relative Density: No Information Available
Molecular Weight: 216.59
Section 10 – Stability and Reactivity
Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: High temperatures, incompatible materials, light, dust generation, excess heat.
Incompatible Materials: Strong oxidizing agents, chlorine trifluoride, potassium, sodium, light.
Hazardous Decomposition Products: Hydrogen iodide, mercury/mercury oxides.
Hazardous Polymerization: Does not occur
Hazardous Reactions: None under normal processing.
Section 11 – Toxicological Information
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Routes of Exposure/Symptoms/Corrosiveness – See Section 2
LD50 orl-rat: = 18 mg/kg;
LC50 inhalation-rat: NA
Irritation: No Information Available
Toxicologically Synergistic: No Information Available
Chronic Exposure
Carcinogenicity There are no known carcinogenic chemicals in this product
Sensitization No information available.
Mutagenic Effects Please refer to RTCES# OW5250000 for specific information.
Reproductive Effects have occurred in experimental animals.
Developmental Effects (Immediate/Delayed) No information available.
Teratogenicity No information available.
Other Adverse Effects No information available.
Endocrine Disruptor Information No information available
Section 12 – Ecological Information
Ecotoxicity: No information available.
Persistence and Degradability: No information available. Mobility: No information available
Bioaccumulation/ Accumulation: No information available.
Section 13 – Disposal Considerations
Waste Disposal/Waste Disposal of Packaging: Chemical waste generators must determine whether a
discarded chemical is classified as a hazardous waste. Chemical waste generators must also consult
local, regional, and national hazardous waste regulations to ensure complete and accurate classification.
Section 14 – Transport Information
DOT – UN1641, Mercury oxide, 6.1, II
Section 15 – Regulatory Information (not meant to be all inclusive)
OSHA Status: Not Applicable
Canada DSL: Not Applicable
TSCA: Not Applicable
SARA Title III Section 313: These chemicals are listed in Section 313 of SARA Title III
RCRA Status: Not Applicable
CERCLA Reportable Quantity: Not Applicable
WHMIS: D1A
This product has been classified in accordance with the hazard criteria of the CPR and the MSDS
contains all the information required by the CPR.
Section 16 – Additional Information
Disclaimer: The information on this MSDS applies to this specific material as supplied. It may not
be valid for this material if it is used in combination with any other materials. It is the user’s
responsibility to determine the suitability and completeness of this information for his/her own
particular use. No warranty is implied regarding the accuracy of the data or the results to be
obtained from the products use.
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