Name:
Sodium hydrosulfide hydrate flakes 68-72%
Synonym:
Sodium bisulfide; sodium hydrogen sulfide; sodium hydrosulfide; sodium mercaptan; sodium mercaptide; sodium sulfhydrate; sodium sulfide
CAS:
7732-18-5
Section 1 - Chemical Product
MSDS Name:Sodium hydrosulfide hydrate flakes 68-72%
Synonym:Sodium bisulfide; sodium hydrogen sulfide; sodium hydrosulfide; sodium mercaptan; sodium mercaptide; sodium sulfhydrate; sodium sulfide
Synonym:Sodium bisulfide; sodium hydrogen sulfide; sodium hydrosulfide; sodium mercaptan; sodium mercaptide; sodium sulfhydrate; sodium sulfide
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7732-18-5 | Water | 28-32 | 231-791-2 |
| Hazard Symbols: C Risk Phrases: 31 34 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Contact with acids liberates toxic gas. Causes burns.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes eye burns. May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin burns. Effects of contact may be delayed. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause systemic effects.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. Effects of inhalation may be delayed. May cause systemic effects.
Chronic:
Effects may be delayed.
Contact with acids liberates toxic gas. Causes burns.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes eye burns. May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin burns. Effects of contact may be delayed. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause systemic effects.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. Effects of inhalation may be delayed. May cause systemic effects.
Chronic:
Effects may be delayed.
Section 4 - FIRST AID MEASURES
Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
Skin:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Contact with metals may evolve flammable hydrogen gas.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, or water spray.
For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Contact with metals may evolve flammable hydrogen gas.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, or water spray.
For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition.
Provide ventilation. Do not get water inside containers.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition.
Provide ventilation. Do not get water inside containers.
Section 7 - HANDLING and STORAGE
Handling:
Use only in a well-ventilated area. Minimize dust generation and accumulation. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Discard contaminated shoes.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Keep away from acids. Do not store in metal containers. Keep containers tightly closed. Store protected from moisture.
Use only in a well-ventilated area. Minimize dust generation and accumulation. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Discard contaminated shoes.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Keep away from acids. Do not store in metal containers. Keep containers tightly closed. Store protected from moisture.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7732-18-5: CAS# 16721-80-5: Russia: 0.2 mg/m3 TWA Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7732-18-5: CAS# 16721-80-5: Russia: 0.2 mg/m3 TWA Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Flakes
Color: yellow
Odor: Mild rotten-egg odor, stench
pH: Not available.
Vapor Pressure: 15.5psi @70F
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 55 deg C
Autoignition Temperature: Not available.
Flash Point: 90 deg C ( 194.00 deg F)
Explosion Limits, lower: 4.3
Explosion Limits, upper: 45.5
Decomposition Temperature:
Solubility in water: 620 G/L (20C)
Specific Gravity/Density: 1.79
Molecular Formula: HNaS.xH2O
Molecular Weight: 56.06
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Exposure to moist air or water.
Incompatibilities with Other Materials:
Metals, acids.
Hazardous Decomposition Products:
Oxides of sulfur, hydrogen sulfide.
Hazardous Polymerization: Has not been reported
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Exposure to moist air or water.
Incompatibilities with Other Materials:
Metals, acids.
Hazardous Decomposition Products:
Oxides of sulfur, hydrogen sulfide.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7732-18-5: ZC0110000 CAS# 16721-80-5: WE1900000 LD50/LC50:
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 16721-80-5.
Carcinogenicity:
Water - Not listed by ACGIH, IARC, or NTP.
Sodium sulfide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 7732-18-5: ZC0110000 CAS# 16721-80-5: WE1900000 LD50/LC50:
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 16721-80-5.
Carcinogenicity:
Water - Not listed by ACGIH, IARC, or NTP.
Sodium sulfide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: SODIUM HYDROSULPHIDE
Hazard Class: 8
UN Number: 2949
Packing Group: II
IMO
Shipping Name: SODIUM HYDROSULPHIDE
Hazard Class: 8
UN Number: 2949
Packing Group: II
RID/ADR
Shipping Name: SODIUM HYDROSULPHIDE, HYDRATED
Hazard Class: 8
UN Number: 2949
Packing group: II
USA RQ: CAS# 16721-80-5: 5000 lb final RQ; 2270 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 31 Contact with acids liberates toxic gas.
R 34 Causes burns.
Safety Phrases:
S 25 Avoid contact with eyes.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 50A Do not mix with acids.
WGK (Water Danger/Protection)
CAS# 7732-18-5: No information available.
CAS# 16721-80-5: 2
Canada
CAS# 7732-18-5 is listed on Canadas DSL List.
CAS# 16721-80-5 is listed on Canadas DSL List.
CAS# 7732-18-5 is not listed on Canadas Ingredient Disclosure List.
CAS# 16721-80-5 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 16721-80-5 is listed on the TSCA inventory.
