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CAS Number: 16721-80-5
Product Catalog
93-1061
Sodium › Sodium hydrogen sulfide, anhydrous| CAS Number: | 16721-80-5 |
| MDL Number: | MFCD00011124 |
| Molecular Formula: | HNaS |
| Molecular Weight: | 56.06 |
| Chemical Formula: | NaHS |
| Color and Form: | off-white pwdr. |
| Note: |
Stability: hygroscopic
Safety: Hazardous
Physical Characteristics: melting point 350°C
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Sodium hydrogen sulfide, anhydrous |
| Product Number: | 93-1061 |
| CAS Registry Number: | 16721-80-5 |
| Formula: | NaHS |
| EINECS Number: | 240-778-0 |
| Chemical Family: | metal chalcogenides |
| Synonym: | Sodium bisulfide, Sodium mercaptan |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 16721-80-5 | 100 | no data | no data |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | May form highly toxic and flammable hydrogen sulfide gas on exposure to acids or stomach fluids. Corrosive to skin, eyes, and mucous membranes. Possible risk of irreversible effects. |
| Primary Routes of Exposure: | Ingestion, inhalation, skin and eyes |
| Eye Contact: | Dust causes burns to the eyes. |
| Skin Contact: | Causes caustic burns to the skin. |
| Inhalation: | Inhalation of dust can lead to chemical burns to the respiratory tract. Hydrogen sulfide gas, if formed, is poisonous. |
| Ingestion: | Gastric juices causes release of toxic hydrogen sulfide. |
| Acute Health Effects: | Hydrogen sulfide gas may cause painful conjunctivitis, headache, nausea, dizziness, pulmonary edema and possible death. Corrosive to skin, eyes, and respiratory tract. Possible risk of irreversible effects. |
| Chronic Health Effects: | No information available on long-term chronic effects. |
| NTP: | No |
| IARC: | No |
| OSHA: | No |
| SECTION 4: First Aid Measures | |
|---|---|
| Eye Exposure: | Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention. |
| Skin Exposure: | Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists. |
| Inhalation: | Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance. |
| Ingestion: | Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel. |
| SECTION 5: Fire Fighting Measures | |
|---|---|
| Flash Point: | not applicable |
| Autoignition Temperature: | no data |
| Explosion Limits: | no data |
| Extinguishing Medium: | carbon dioxide or dry powder |
| Special Fire Fighting Procedures: | If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self- contained breathing apparatus and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | If involved in a fire this material may emit irritating fumes of hydrogen sulfide and sulfur dioxide. |
| Unusual Fire or Explosion Hazards: | Dust may form explosive mixtures with air. Contact with acids gives off hydrogen sulfide, a toxic and flammable gas. |
| SECTION 6: Accidental Release Measures | |
|---|---|
| Spill and Leak Procedures: | In the case of a spill, the fine powder should be covered with dry sodium carbonate or dolomite in order to reduce the formation of dust. Sweep up the mixture. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store in a tightly sealed container. Exposure to the atmosphere may lead to release of toxic hydrogen sulfide gas. Empty containers may retain product residues that evolve toxic gases. |
| SECTION 8: Exposure Controls and Personal Protection | |
|---|---|
| Eye Protection: | Always wear approved safety glasses when handling a chemical substance in the laboratory. |
| Skin Protection: | Wear appropriate chemical resistant rubber gloves and clothing. |
| Ventilation: | If possible, handle the material in an efficient fume hood. |
| Respirator: | If ventilation is not available a respirator should be worn. The use of a respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134. |
| Additional Protection: | No additional protection required. |
| SECTION 9: Physical and Chemical Properties | |
|---|---|
| Color and Form: | off-white pwdr. |
| Molecular Weight: | 56.06 |
| Melting Point: | 350°C |
| Boiling Point: | no data |
| Vapor Pressure: | no data |
| Specific Gravity: | no data |
| Odor: | odor of sulfur |
| Solubility in Water: | very soluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | hygroscopic |
| Hazardous Polymerization: | no hazardous polymerization |
| Conditions to Avoid: | Contact of dust cloud with an ignition source. |
| Incompatibility: | oxidizing agents, mineral acids, halogens and carbon |
| Decomposition Products: | hydrogen sulfide, sulfur dioxide, and metal oxides. |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Intraperitoneal (rat); LD50: 14600 ug/kg. Intraperitoneal (mouse); LD50: 18/ mg/kg. Subcutaneous (mouse); LD50: 200 mg/kg. Intraperitoneal (rat); TDLo: 67500 ug/kg/3D-I. Intraperitoneal (mouse); TDLo: 35 mg/kg/5D-I. Bacteria-Salmonella typhimurim; Mutation in microorganisms: 2 nmol/plate. Oral (insect-Drosophila melanogaster); Sex chromosome loss and nondisjunction: 50 mmol/L. Multiple routes (insect-Drosophila melanogaster); Sex chromosome loss and nondisjunction. |
| Carcinogenic Effects: | no data |
| Mutagenic Effects: | Possible mutagen |
| Tetratogenic Effects: | no data |
| SECTION 12: Ecological Information | |
|---|---|
| Ecological Information: | No information available |
| SECTION 13: Disposal Considerations | |
|---|---|
| Disposal: | Dispose of according to local, state and federal regulations. |
| SECTION 14: Transportation | |
|---|---|
| Shipping Name (CFR): | Sodium hydrosulphide |
| Hazard Class (CFR): | 4.2 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | II |
| UN ID Number (CFR): | UN# 2318 |
| Shipping Name (IATA): | Sodium hydrosulphide |
| Hazard Class (IATA): | 4.2 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | II |
| UN ID Number (IATA): | UN# 2318 |
| SECTION 15: Regulatory Information | |
|---|---|
| TSCA: | Listed in the TSCA inventory. |
| SARA (Title 313): | Title compound not listed |
| Second Ingredient: | none |
| Third Ingredient: | none |
| SECTION 16: Other Information | |
|---|---|
| Disclaimer: | The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. |
| Preparation Date: | 10/29/2001 |
| Revision Date: | 12/08/2010 |
