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Potassium Metabisulfite Metabisulphite SDS MSDS Sheet

Buy Potassium Metabisulfite; Door Delivery

Potassium Metabisulfite Metabisulphite USP BP IP ACS Analytical Reagent FCC Food grade Manufacturers Specifications


Potassium Metabisulfite SDS MSDS Sheet, Potassium Metabisulphite  Material Safety Data Sheet

Section 1: Chemical Product and Company Identification

Product Name: Potassium metabisulfite, Potassium metabisulphite, Potassium disulfite
CAS#: 16731-55-8
Synonym: Dipotassium pyrosulfite; Dipotassium disulfite; Dipotassium metabisulfite; Potassium disulfite; Pyrosulfurous acid, dipotassium salt
Chemical Name: Potassium Pyrosulfite
Chemical Formula: K2-S2-O5
Molecular Weight: 222.32
EINECS EC Number: 240-795-3
Recommended usage: Industrial Manufacturing.
Suppliers: As per letterhead.

Section 2: Hazards Identification

GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008

Skin corrosion/irritation Category (H315)
Serious eye damage/eye irritation Category 1 (H318)

Labeling according to GHS & Regulation (EC) No 1272/2008

GHS Label Elements

Signal Words: Danger

Hazard Statements:
H315: Causes skin irritation.
H318: Causes serious eye damage.

Precautionary Statements:
P264: Wash … thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P360: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P362: Take off contaminated clothing and wash before reuse.
P302+352: IF ON SKIN: Wash with soap and water.
P332+313: If skin irritation occurs: Get medical advice/attention.
P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing.
P337+P313 If eye irritation persists: Get medical advice/ attention.
P314: Get Medical advice/attention if you feel unwell.

Classification according to EU Directives 67/548/EEC or 1999/45/EC:
Xi: Irritant.
R-phrase(s): R38 Irritating to skin. R41 Risk of serious damage to eyes.
S-phrase(s): S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 Wear eye/face protection.
Full text of S-statement & R-phrases: see section 16

Section 3: Composition and Information on Ingredients

Composition Name: Potassium metabisulfite or Potassium metabisulfite
CAS #: 16731-55-8
EINECS EC Number: 240-795-3
% by Weight: 100

Section 4: First Aid Measures

Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Get medical aid. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Do not induce vomiting. Get medical aid.
Inhalation: Remove from exposure and move to fresh air immediately. 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 and Explosion Data

Flammability of the Product: Potassium metabisulfite is non-flammable.
Products of Combustion: Sulphur oxides, Potassium oxides.
Fire Fighting Media and Instructions: Dry powder.
Special Remarks on Fire Hazards: When heated to decomposition it emits toxic fumes of sulfur oxides and potassium sulfate. It may ignite during milling or grinding (when powdering it).
Special Remarks on Explosion Hazards: Not available.

Section 6: Accidental Release Measures

General Information: Use proper personal protective equipment.
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation. Do not let this chemical enter the environment.

Section 7: Handling and Storage

Precautions: Do not breathe dust of Potassium metabisulfite. Wear suitable protective clothing. In case of insufficient ventilation, wear suitable respiratory equipment. If you feel unwell, seek medical attention and show the label when possible. Avoid contact with skin and eyes. Keep away from incompatibles such as oxidizing agents, acids.
Storage: Keep Potassium metabisulfite or Potassium metabisulfite container tightly closed. Keep container in a cool, well-ventilated area. Never allow product to get in contact with water during storage. Do not store near acids.

Section 8: Exposure Controls/Personal Protection

Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits.
Personal Protection: Splash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent. Gloves.
Personal Protection in Case of a Large Spill: Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid inhalation of the product.
Exposure Limits: Not available.

Section 9: Physical and Chemical Properties

Physical state and appearance: Potassium metabisulfite is solid. (Crystalline powder. Crystals solid.)
Odor: Sulfurous. Sulfur dioxide odor
Molecular Weight: 222.31 g/mole
Color: White.
pH (1% soln/water): 3-5.
Boiling Point: Not available.
Melting Point: Decomposition temperature: 150C (302F)
Specific Gravity: Density: 2.34 (Water = 1)
Vapor Density: 2.3 (Air = 1)
Volatility: Not available.
Dispersion Properties: See solubility in water.
Easily soluble in cold water, hot water.
Soluble in acids and alkaline.
Insoluble in alcohol

Section 10: Stability and Reactivity Data

Stability: Potassium metabisulfite or Potassium metabisulphite is stable.
Instability Temperature: Not available.
Conditions of Instability: Incompatible materials, moisture, air
Incompatibility with various substances: Reactive with oxidizing agents, acids.
Corrosivity: Non-corrosive in presence of glass.
Special Remarks on Reactivity: Liberates sulfur dioxide in contact with acids. Air sensitive. Moisture sensitive. It oxidizes to in air to sulfate, more readily in presence of moisture.
Polymerization: Will not occur.

Section 11: Toxicological Information

Toxicity to Animals:
LD50 Oral - Rat - male and female - > 2,000 mg/kg
Carcinogenicity: 3 (Not classifiable for human.) by IARC.
Special Remarks on Chronic Effects on Humans: May cause adverse reproductive effects based on animal test data. May affect genetic material (mutagenic)

Section 12: Ecological Information

Toxicity to fish: LC50 - Danio rerio (zebra fish) - 464 - 1,000 mg/l - 96 h
BOD5 and COD: Not available.
Products of Biodegradation: Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.
Toxicity of the Products of Biodegradation: The product itself and its products of degradation are not toxic.

Section 13: Disposal Considerations

Waste Disposal: Waste must be disposed of in accordance with environmental control regulations.

Section 14: Transport Information

DOT USA: Not dangerous goods
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods

Section 15: Other Regulatory Information

TSCA 12(b): Not applicable
SARA 313: Not applicable
SARA 311/312 Hazardous Categorization: Acute Health Hazard, Reactive Hazard
Clean Water Act: Not applicable
Clean Air Act: Not applicable
OSHA: Not applicable
CERCLA: Not applicable
California Proposition 65: This product does not contain any Proposition 65 chemicals

Canada WHMIS: D2B Toxic materials
CAS# 16731-55-8 is listed on Canada's DSL List.
CAS# 16731-55-8 is listed on the Canadian Ingredient Disclosure List.

Section 16: Other Information

EINECS EC Number: 240-795-3
H315: Causes skin irritation.
H318: Causes serious eye damage.
Xi: Irritant.
R-phrase(s): R38 Irritating to skin. R41 Risk of serious damage to eyes.
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules or insurance requirements applicable. This MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.


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Last 21 August, 2017

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