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Potassium Metabisulphite Extra Pure Amaris Chemicals
Potassium Lactate Extra Pure Amaris Chemicals
Potassium Lactate Extra Pure Original price was: $ 18.11.Current price is: $ 17.98.
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Potassium Metal Extra Pure Amaris Chemicals
Potassium Metal Extra Pure Original price was: $ 17.79.Current price is: $ 17.67.
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Potassium Metabisulphite Extra Pure

Original price was: $ 19.10.Current price is: $ 18.94.

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Potassium Metabisulphite Extra Pure is a white crystalline powder with a sharp sulfurous odor, valued for its powerful antioxidant and preservative properties. In the food and beverage industry, it is commonly used as a sterilizing agent, particularly in winemaking and brewing, to inhibit unwanted microbial activity and preserve color and flavor. In laboratory settings, it serves as a reducing agent and a source of sulfur dioxide. Its extra pure grade ensures minimal impurities, making it ideal for applications that demand high levels of chemical stability, such as pharmaceuticals, cosmetics, and precision formulations.

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Description

Potassium Metabisulphite Extra Pure

PRIMARY USES

  1. Food Preservative (E224):
  • Widely used in wine, fruit juices, and dried fruits as an antimicrobial and antioxidant.
  • Prevents spoilage and discoloration by inhibiting bacteria, molds, and yeasts.
  1. Winemaking and Brewing:
  • Acts as a sterilizing agent for musts and fermentation vessels.
  • Prevents unwanted fermentation by wild yeasts and preserves flavor and color.
  1. Analytical Chemistry:
  • Used as a reducing agent and source of SO₂ gas in laboratories.
  • Employed in iodometric titrations and for chlorine removal in water samples.

SECONDARY USES

  1. Water Treatment:
  • Used for dechlorination of potable water and wastewater by neutralizing free chlorine and chloramines.
  1. Textile and Leather Industry:
  • Functions as a bleaching agent and antichlor after fabric chlorination processes.
  1. Photographic Industry:
  • Used in the preparation of developers and fixing solutions as an oxygen scavenger.
KEY PRODUCT FEATURES

1. Basic Identification Attributes

  • Chemical Name: Potassium Metabisulphite
  • CAS Number: 16731-55-8
  • HS Code: 2832.20.00
  • Molecular Formula: K₂S₂O₅
  • Synonyms:
    • Potassium pyrosulphite
    • Dipotassium disulphite
    • E224 (as a food preservative)
    • Potassium metabisulfite

2. Physical & Chemical Properties

  • Physical State: Solid (powder or crystalline granules)
  • Color & Odor: White or slightly yellow; pungent sulfur dioxide-like odor
  • Boiling Point & Melting Point:
    • Decomposes before boiling
    • Melting Point: ~190 °C (decomposes)
  • Density/Specific Gravity: ~2.34 g/cm³
  • Solubility:
    • Soluble in water (65 g/100 mL at 20 °C)
    • Insoluble in ethanol
  • pH Level: Acidic (pH ~3.5–5.0 in 10% aqueous solution)
  • Vapor Pressure & Volatility: Low volatility; releases SO₂ on contact with acid or moisture
  • Flash Point: Not flammable
  • Autoignition Temperature: Not applicable
  • Viscosity: Not applicable (solid)

3. Safety & Hazard Attributes

  • Hazard Class (GHS Classification):
    • Irritant (skin and eye)
    • Respiratory irritant
    • May cause allergic respiratory reaction (asthma-like symptoms)
  • NFPA Ratings:
    • Health: 2
    • Flammability: 0
    • Reactivity: 1
  • Exposure Limits:
    • TLV (ACGIH): 5 ppm (as SO₂)
    • OSHA PEL: 5 ppm (as SO₂)
  • Reactivity:
    • Reacts with acids to release sulfur dioxide gas
    • Incompatible with strong oxidizers and acids

4. Storage & Handling Attributes

  • Storage Conditions:
    • Store in a cool, dry, and well-ventilated area
    • Protect from moisture and light
  • Incompatible Materials:
    • Acids, water (moisture), oxidizers
  • Container Type:
    • Plastic or coated metal containers with moisture-proof seals
  • Shelf Life & Expiration Date:
    • Typically 1–2 years when stored properly
  • Special Handling Requirements:
    • Use gloves, goggles, dust mask or fume hood in bulk handling
    • Avoid inhalation and contact with moisture

5. Regulatory & Compliance Attributes

  • Regulatory Status:
    • Approved food additive (E224, preservative)
    • Listed in REACH, TSCA, and FDA
  • Transportation Restrictions:
    • Not classified as dangerous goods for transport
  • Waste Disposal Method:
    • Dispose according to local regulations
    • Dilute and neutralize before disposal if permitted

6. Environmental & Health Impact

  • Ecotoxicity:
    • Toxic to aquatic organisms in high concentrations
    • Risk of oxygen depletion in water due to SO₂ release
  • Persistence in Environment:
    • Not persistent; degrades rapidly in moist air or water
  • Carcinogenicity/Mutagenicity:
    • Not classified as carcinogenic or mutagenic
  • Biodegradability:
    • Decomposes readily in the environment to sulfate
SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):

  • Chemical-resistant gloves (e.g., nitrile)
  • Protective goggles or face shield
  • Lab coat or apron
  • Use in a fume hood or well-ventilated area

Handling:

  • Avoid inhalation of dust or vapors
  • Prevent contact with skin, eyes, and clothing
  • Avoid generating dust
  • Use only with proper ventilation

Storage:

  • Store in a cool, dry, and well-ventilated place
  • Keep container tightly closed
  • Protect from heat, moisture, acids, and oxidizing agents

FIRST AID MEASURES

Inhalation:

  • Move person to fresh air immediately
  • If breathing is difficult, provide oxygen and seek medical attention

Skin Contact:

  • Remove contaminated clothing
  • Wash thoroughly with soap and water
  • Seek medical advice if irritation occurs

Eye Contact:

  • Rinse thoroughly with water for at least 15 minutes
  • Seek medical attention promptly

Ingestion:

  • Rinse mouth thoroughly
  • Do not induce vomiting
  • Give water or milk if conscious
  • Get medical assistance immediately

FIRE FIGHTING MEASURES

Flammability:

  • Non-flammable, but may release toxic gases

Extinguishing Media:

  • Use water spray, dry chemical, foam, or CO₂

Hazardous Combustion Products:

  • Sulfur dioxide (SO₂), potassium oxides

Firefighter Protection:

  • Wear self-contained breathing apparatus (SCBA)
  • Avoid inhaling gases or fumes from fire
  • Control runoff to prevent environmental contamination

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