Potassium Metabisulfite
Synonyms: Potassium Pyrosulfite
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name
Potassium Metabisulfite
Product Form
Substance
Catalogue No.
AL3737
CAS Number
16731-55-8
EC Number
240-795-3
EC Index Number
016-063-00-2
Grade
95%
HSN Code
28322010
Molecular Formula
K2S2O5
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name
Potassium Metabisulfite
Catalogue No.
AL3737
Product form
Substance
CAS Number
16731-55-8
EC Number
240-795-3
Grade
95%
EC Index Number
016-063-00-2
Chemical Formula
K2S2O5
HSN Code
28322010
Synonyms
Potassium Pyrosulfite
Chemical Structure
-
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture
Antioxidant, preservative, reagent
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 Irrit. 2; STOT SE 3
Classification source
ECHA C&L Inventory via PubChem CID 28019 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms
Irritant
Signal word
Warning
Hazard statements
H315: Causes skin irritation; H335: May cause respiratory irritation
2.3 Other hazards
Other hazards
Releases irritating sulfur dioxide gas upon contact with acids or when heated.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name
Potassium Metabisulfite
CAS No.
16731-55-8
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
Wash with soap and water. If irritation occurs, seek medical attention.
First-aid measures after eye contact
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
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 the respiratory tract, skin, and eyes; potential allergic reactions.
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 emit sulfur dioxide when heated or involved in a fire.
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. Avoid breathing dust. Use appropriate protective equipment.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
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. Wear appropriate personal protective equipment.
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
Cool. Dry. Well closed. Separated from acids and strong oxidants. Keep in a well-ventilated room.
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 dust or vapors are generated.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state
Solid
Colour
White
Odour
Sulfur dioxide odor
Odour threshold
Not specified
pH value
Not specified
Relative evaporation rate (butylacetate=1)
Not specified
Melting point
Decomposes at approximately 150 °C
Freezing point
Not specified
Boiling point
Not specified
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not specified
Flammability (solid, gas)
Not flammable
Vapour pressure
Not specified
Relative vapour density at 20°C
Not specified
Density
2.3 g/cu cm
Solubility
Freely soluble in water; insoluble in alcohol
Log Pow
Not specified
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not specified
Explosive properties
Not explosive
Oxidising properties
Not oxidizing
Explosive limits
Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity
Stable under normal conditions; reacts with acids to release sulfur dioxide.
10.2 Chemical stability
Chemical stability
When stored at a maximum temperature of 25 °C and a maximum relative humidity of 45%, the shelf life is 6 months.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions
Decomposes on heating and on contact with acids. This produces sulfur oxides. Reacts with acids and strong oxidants.
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 toxic fumes of sulfur oxides and potassium sulfate.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity
LD50 Rat oral 1800 mg/kg bw; LD50 Rat oral 2300 mg/kg bw; LD50 Mouse ip 640 mg/kg bw
Skin corrosion/irritation
H315: Causes skin irritation
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)
H335: May cause respiratory irritation
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)
Not classified as dangerous goods
Proper Shipping Name (IMDG)
Not classified as dangerous goods
Proper Shipping Name (IATA)
Not classified as dangerous goods
Proper Shipping Name (ADN)
Not classified as dangerous goods
Proper Shipping Name (RID)
Not classified as dangerous goods
14.3 Transport hazard class(es)
Transport hazard class(es)
Not applicable
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.