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SODIUM SULFIDE (ANHYDROUS) ICSC: 1047
Date of Peer Review: October 2002

Sodium monosulfide
Sodium sulphide
CAS # 1313-82-2 Na2S
RTECS # WE1905000 Molecular mass: 78.04
UN # 1385
EC # 016-009-00-8
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking. NO contact with acid(s), oxidants.
Water in large amounts, water spray, foam, dry powder.
EXPLOSION


EXPOSURE
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
Inhalation Cough. Burning sensation. Laboured breathing. Shortness of breath. Sore throat.
Closed system and ventilation.
Fresh air, rest. Refer for medical attention.
Skin Redness. Pain. Skin burns. Blisters.
Protective gloves. Protective clothing.
First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
Eyes Redness. Pain. Blurred vision. Severe deep burns.
Face shield, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Burning sensation. Shock or collapse.
Do not eat, drink, or smoke during work.
Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Remove all ignition sources. Cover the spilled material with dry earth or sand. Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus.
Airtight.
EU Classification
Symbol: C, N
R: 31-34-50
S: (1/2-)-26-45-61
UN Classification
UN Hazard Class: 4.2
UN Pack Group: II
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-42GS4-II+III
NFPA Code: H3; F1; R1;
Separated from acids, oxidants. Keep in a well-ventilated room. Dry.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


SODIUM SULFIDE (ANHYDROUS) ICSC: 1047
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE TO YELLOW HYGROSCOPIC CRYSTALS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on burning, on contact with acids, water, producing toxic and corrosive gases, which increases fire hazard. The solution in water is a strong base, it reacts violently with acid and is corrosive. Reacts violently with oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and through the skin and by ingestion.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion.

PHYSICAL PROPERTIES
Melting point (decomposes): 920-950C
Density: 1.86 g/cm
Auto-ignition temperature: > 480C
Octanol/water partition coefficient as log Pow: -3.5
ENVIRONMENTAL DATA
This substance may be hazardous in the environment; special attention should be given to aquatic organisms.
NOTES
Other UN number: 1849, sodium sulfide, hydrated with 30% or more water, hazard class 8, packaging group II. Other melting points: 1180C in vacuum.
Card has been partly updated in April 2005. See section Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004