potassium hydrogensulphide

Synonym:potassium bisulfide, potassium mercaptan

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Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title compound1310-61-8100%no datano data

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Section 3: Hazards Identification
May form highly toxic and flammable hydrogen sulfide gas on exposure to acids or stomach fluids. Corrosive
Emergency Overview:
to skin, eyes and mucous membranes. Possible risk of irreversible effects.
Primary Routes of Exposure:Ingestion, inhalation, skin, eyes
Eye Contact:Dust causes burns to the eyes.
Contact with skin can produce serious caustic burns with painful inflammation and possible destruction of
Skin Contact:
tissue.
Inhalation of dust can lead to chemical burns to the respiratory tract. Hydrogen sulfide, if formed, is poisonous.
Inhalation:
Ingestion:Gastric juices causes release of toxic hydrogen sulfide.
Hydrogen sulfide gas may cause painful conjunctivitis, headache, nausea, dizziness, pulmonary edema and
Acute Health Affects:
possible death. Corrosive to skin, eyes and respiratory tract. Possible risk of irreversible effects.
Chronic Health Affects:No information available on long-term chronic effects
NTP:No
IARC:No
OSHA:No

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SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.

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SECTION 5: Fire Fighting Measures
Flash Point:not applicable
Autoignition Temperature:no data
Explosion Limits:no data
Extinguishing Medium:carbon dioxide or dry powder
If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
Special Fire Fighting Procedures:
self-contained breathing apparatus and full protective clothing.
Hazardous Combustion andIf involved in a fire, this material may emit irritating fumes of hydrogen sulfide and sulfur dioxide.
Decomposion Products:
Dust may form explosive mixtures with air. Contact with acids gives off hydrogen sulfide; a toxic and
Unusual Fire or Explosion Hazards:
flammable gas.

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SECTION 6: Accidental Release Measures
In the case of a spill, the fine powder should be covered with dry sodium carbonate or dolomite in order to
Spill and Leak Procedures:
reduce the formation of dust. Sweep up the mixture.

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SECTION 7: Handling and Storage
Store in a tightly sealed container. Exposure to the atmosphere may lead to release of toxic hydrogen sulfide
Handling and Storage:
gas. Empty containers may retain product residues that evolve toxic gases.

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SECTION 8: Exposure Controls and Personal Protection
Eye Protection:Wear safety glasses and face shield or goggles when handling this chemical substance in the laboratory.
Skin Protection:Wear appropriate chemical resistant rubber gloves and protective clothing.
Ventilation:Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation:Handle the material in an efficient fume hood.
Additional Protection:No additional protection required.

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SECTION 9: Physical and Chemical Properties
Color and Form:white to off-white pwdr.
Molecular Weight:72.18
Melting Point:no data
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:no data
Odor:odor of rotten eggs
Solubility in Water:very soluble

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SECTION 10: Stability and Reactivity
Stability:slow decomposition in air, hygroscopic
Hazardous Polymerization:no hazardous polymerization
contact with air, and mineral acids. Reaction with mineral acids can lead to formation of toxic hydrogen sulfide
Conditions to Avoid:
fumes.
Incompatibility:oxidizing agents, mineral acids, halogens and carbon
Decomposition Products:hydrogen sulfide, sulfur dioxide, potassium sulfate, and potassium hydroxide

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SECTION 11: Toxicological Information
RTECS Data:No information available in the RTECS files
Carcinogenic Effects:no data
Mutagenic Effects:no data
Tetratogenic Effects:no data

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SECTION 12: Ecological Information
Ecological Information:No information available

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SECTION 13: Disposal Considerations
Disposal:Dispose of according to local, state and federal regulations

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SECTION 14: Transportation
Shipping Name (CFR):Self-heating solid, Inorganic, N.O.S.
Hazard Class (CFR):4.2
Additional Hazard Class (CFR):NA
Packaging Group (CFR):II
UN ID Number (CFR):UN# 3190
Shipping Name (IATA):Self-heating solid, Inorganic, N.O.S.
Hazard Class (IATA):4.2
Additional Hazard Class (IATA):NA
Packaging Group (IATA):II
UN ID Number (IATA):UN# 3190

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SECTION 15: Regulatory Information
TSCA:Listed in the TSCA inventory
SARA (Title 313):Title compound not listed
Second Ingredient:none

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SECTION 16 - ADDITIONAL INFORMATION
N/A