Sodium Sulfide

Synonyms: Sodium sulfide, Na2S

SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name Sodium Sulfide
Product Form Substance
Catalogue No. AL01424
CAS Number 27610-45-3
EC Number -
EC Index Number -
Grade Iron-free, flakes
HSN Code 28301000
Molecular Formula Na2S·xH2O
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name Sodium Sulfide
Catalogue No. AL01424
Product form Substance
CAS Number 27610-45-3
EC Number Not specified
Grade Iron-free, flakes
EC Index Number Not specified
Chemical Formula Na2S·xH2O
HSN Code 28301000
Synonyms Sodium sulfide, Na2S
Chemical Structure -
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture Reducing agent, reference compound
Uses advised against Not specified
1.3 Details of the supplier of the safety data sheet
Company identification Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 Emergency Contact Details
Phone / e-Mail Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
SECTION 2: Hazards identification
2.3 Other hazards
Other hazards Releases toxic H2S gas upon contact with moisture or acids.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name Sodium Sulfide
CAS No. 27610-45-3
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation Move to fresh air. Seek medical attention if symptoms persist.
First-aid measures after skin contact Wash with soap and water. Seek medical attention if irritation develops.
First-aid measures after eye contact Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention.
First-aid measures after ingestion Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use Irritation of the respiratory tract, skin, and eyes; potential for systemic toxicity from H2S exposure.
4.3 Indication of any immediate medical attention and special treatment needed
General information Treat symptomatically. Show this safety data sheet to the treating physician.
SECTION 5: Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures May produce toxic fumes in a fire; use appropriate fire-fighting measures.
5.3 Advice for firefighters
Protection during firefighting Do not enter fire area without proper protective equipment, including respiratory protection.
SECTION 6: Accidental release measures
6.1.1 For non-emergency personnel
Emergency procedures Evacuate area and ventilate. Contain spill and neutralize with acid.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up Use appropriate personal protective equipment. Collect and dispose of in accordance with local regulations.
6.4 Reference to other sections
Reference Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling Handle in a fume hood with appropriate PPE including gloves and goggles.
Hygiene measures Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions Store in a tightly closed container in a cool, dry place, away from acids and moisture.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection Protective gloves (e.g. nitrile rubber)
Eye protection Chemical safety goggles or safety glasses
Skin and body protection Wear suitable protective clothing
Respiratory protection Use appropriate respiratory protection if airborne concentrations exceed recommended limits.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state Solid
Colour Yellow to red
Odour Sulfide
Odour threshold Not specified
pH value Alkaline solution (pH > 12)
Relative evaporation rate (butylacetate=1) Not specified
Melting point 840 °C
Freezing point Not specified
Boiling point 1200 °C
Flash point Not applicable
Auto-ignition temperature Not applicable
Decomposition temperature Not specified
Flammability (solid, gas) Not flammable under normal conditions
Vapour pressure Not specified
Relative vapour density at 20°C Not specified
Density 1.66 g/cm³
Solubility Soluble in water
Log Pow Not specified
Viscosity, kinematic Not applicable
Viscosity, dynamic Not applicable
Explosive properties Not explosive
Oxidising properties Not oxidizing
Explosive limits Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity Reacts with acids to release hydrogen sulfide gas; hygroscopic.
10.2 Chemical stability
Chemical stability Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions No dangerous reactions known under normal conditions of use.
10.4 Conditions to avoid
Conditions to avoid Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials Acids, oxidizing agents.
10.6 Hazardous decomposition products
Hazardous decomposition products Not specified
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity Toxic if inhaled or ingested; may cause respiratory irritation.
Skin corrosion/irritation Causes skin irritation.
Serious eye damage/irritation Causes serious eye irritation.
Respiratory or skin sensitisation Not a sensitizer.
Germ cell mutagenicity Not classified
Carcinogenicity Not classified
Specific target organ toxicity (single exposure) May cause respiratory irritation.
Specific target organ toxicity (repeated exposure) Not classified
SECTION 12: Ecological information
12.1 Toxicity
Toxicity information Not specified
12.2 Persistence - degradability
Persistence - degradability Not specified
12.3 Bioaccumulative potential
Bioaccumulative potential Not specified
12.4 Mobility in soil
Mobility in soil Not specified
12.6 Other adverse effects
Environmental precautions Not specified
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Additional Info Dispose of contents/container in accordance with local, regional, national and international regulations.
SECTION 14: Transport information
14.1 UN number
UN-No. (ADR) UN 1849
UN-No. (IMDG) UN 1849
UN-No. (IATA) UN 1849
UN-No. (ADN) UN 1849
UN-No. (RID) UN 1849
14.2 UN proper shipping name
Proper Shipping Name (ADR) Sodium sulfide, solid
Proper Shipping Name (IMDG) Sodium sulfide, solid
Proper Shipping Name (IATA) Sodium sulfide, solid
Proper Shipping Name (ADN) Sodium sulfide, solid
Proper Shipping Name (RID) Sodium sulfide, solid
14.3 Transport hazard class(es)
Transport hazard class(es) 8
14.4 Packing group
Packing group (ADR) II
Packing group (IMDG) II
Packing group (IATA) II
Packing group (ADN) II
Packing group (RID) II
14.5 Environmental hazards
Dangerous for the environment Not specified
Marine pollutant Not specified
Other information No supplementary information available
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
15.1.1 EU-Regulations Not specified
SECTION 16: Other Information
Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text.