Sodium Sulphite
Synonyms: Sodium Sulfite, Disodium Sulfite
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name
Sodium Sulphite
Product Form
Substance
Catalogue No.
AL4283
CAS Number
7757-83-7
EC Number
231-821-4
EC Index Number
Na2SO3
Grade
98% For Molecular Biology
HSN Code
28321090
Molecular Formula
Na2SO3
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name
Sodium Sulphite
Catalogue No.
AL4283
Product form
Substance
CAS Number
7757-83-7
EC Number
231-821-4
Grade
98% For Molecular Biology
EC Index Number
Na2SO3
Chemical Formula
Na2SO3
HSN Code
28321090
Synonyms
Sodium Sulfite, Disodium Sulfite
Chemical Structure
-
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture
Used as a reducing agent and buffer component in molecular biology applications.
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
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Skin Corr. 1B
Classification source
ECHA C&L Inventory via PubChem CID 24437 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms
Corrosive
Signal word
Danger
Hazard statements
H314: Causes severe skin burns and eye damage
2.3 Other hazards
Other hazards
May cause mild irritation to skin and eyes.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name
Sodium Sulphite
CAS No.
7757-83-7
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation
Move to fresh air. If symptoms persist, seek medical attention.
First-aid measures after skin contact
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.
First-aid measures after eye contact
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.
First-aid measures after ingestion
Rinse mouth. Do not induce vomiting. Seek medical attention if symptoms occur.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use
Irritation of eyes, skin, and respiratory tract.
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
Dry powder. Wear self-contained breathing apparatus for firefighting if necessary.
Unsuitable extinguishing media
Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures
Sulfur oxides, sodium oxides.
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
Contain spill and collect using appropriate protective equipment. Dispose of in accordance with local regulations.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up
Personal protection: filter respirator for inorganic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
6.4 Reference to other sections
Reference
Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling
Avoid contact with skin and eyes. Use in a well-ventilated area.
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
Separated from strong oxidants and acids. Store in an area without drain or sewer access.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection
Handle with gloves.
Eye protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use appropriate respiratory protection if dust is generated.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state
Solid
Colour
White
Odour
Odorless
Odour threshold
Not applicable
pH value
9.0 (1% solution)
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
911 °C
Freezing point
Not applicable
Boiling point
1400 °C
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not applicable
Flammability (solid, gas)
Non-flammable
Vapour pressure
Negligible
Relative vapour density at 20°C
Not applicable
Density
2.63 g/cu cm
Solubility
Soluble in water
Log Pow
-4
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Not applicable
Oxidising properties
Not applicable
Explosive limits
Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity
Stable under normal conditions. Reacts with strong acids to produce sulfur dioxide.
10.2 Chemical stability
Chemical stability
It is fairly stable and does not oxidize as readily as hydrated sulfite.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions
Decomposes on heating. This produces toxic and corrosive fumes. The substance is a strong reducing agent.
10.4 Conditions to avoid
Conditions to avoid
Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials
Strong acids, strong oxidizers.
10.6 Hazardous decomposition products
Hazardous decomposition products
When heated to decomposition it emits very toxic fumes of Na2O sodium oxide and SOx sulfur oxides.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity
LD50 Rat iv 115 mg/kg; LD50 Mouse ip 950 mg/kg; LD50 Mouse iv 130 mg/kg
Skin corrosion/irritation
H314: Causes severe skin burns and eye damage
Serious eye damage/irritation
Not classified (based on available data)
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
Not classified (based on available data)
Specific target organ toxicity (repeated exposure)
Not classified (based on available data)
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)
Not assigned
UN-No. (IMDG)
Not assigned
UN-No. (IATA)
Not assigned
UN-No. (ADN)
Not assigned
UN-No. (RID)
Not assigned
14.2 UN proper shipping name
Proper Shipping Name (ADR)
Sodium Sulphite
Proper Shipping Name (IMDG)
Sodium Sulphite
Proper Shipping Name (IATA)
Sodium Sulphite
Proper Shipping Name (ADN)
Sodium Sulphite
Proper Shipping Name (RID)
Sodium Sulphite
14.3 Transport hazard class(es)
Transport hazard class(es)
Not classified as hazardous for transport
14.4 Packing group
Packing group (ADR)
Not applicable
Packing group (IMDG)
Not applicable
Packing group (IATA)
Not applicable
Packing group (ADN)
Not applicable
Packing group (RID)
Not applicable
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.