Potassium Carbonate – Food Grade (E501)

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Technical Specifications for Potassium Carbonate (Food Grade)

  • Chemical Name: Potassium Carbonate
  • CAS Number: 584-08-7
  • Molecular Formula: K₂CO₃
  • Molecular Weight: 138.21 g/mol
  • Appearance: White crystalline powder or granules
  • Odor: Odorless
  • Grade: Food Grade (E501)
  • Purity: ≥ 99% (depending on food-grade certification)
  • Density: 2.43 g/cm³
  • Melting Point: 891°C (1,636°F)
  • Solubility:
    • Highly soluble in water (110 g/100 mL at 20°C)
    • Insoluble in ethanol and acetone
  • pH (1% solution): ~11.5
  • Hygroscopic: Absorbs moisture from the air; store in sealed containers.

Compliance:

  • Food Safety Standards: Meets FCC, E501 (EU Food Additive Code), and other global food safety standards.

Documents: Safety Data Sheet (SDS)

Description

Potassium Carbonate (E501) is a high-quality, food-grade compound used as a pH regulator, leavening agent, and stabilizer in the food and beverage industry. This versatile, odorless white crystalline powder or granule is valued for its high solubility, strong alkalinity, and non-toxic properties. Potassium Carbonate is commonly used in cocoa processing, noodle production, and beverage formulations to enhance quality and consistency.

Applications of Potassium Carbonate (Food Grade):

Industrial Applications

  • Glass Manufacturing:
    • Acts as a flux in the production of specialty glasses such as optical, television, and laboratory glasses.
  • Soap and Detergents:
    • Used as a builder or buffering agent to improve cleaning efficiency in soaps and liquid detergents.
  • Ceramics:
    • Enhances the strength and quality of ceramics and pottery during manufacturing.
  • Chemical Manufacturing:
    • Precursor in the production of potassium-based chemicals, such as potassium silicates and potassium cyanide.

Food and Beverage Industry

  • Food Additive (E501):
    • Used as a pH regulator, buffering agent, and leavening agent in baking.
  • Cocoa Processing:
    • Helps reduce the natural acidity of cocoa beans (alkalization), enhancing flavor and color.
  • Brewing:
    • Regulates acidity and acts as a source of potassium in brewing processes.
  • Gelatin Production:
    • Serves as a stabilizer in gelatin and other food products.

Agriculture

  • Fertilizers:
    • Source of potassium, an essential nutrient for plant growth.
  • Animal Feed:
    • Provides potassium in feed formulations for livestock and poultry.

Pharmaceuticals

  • Active Ingredient:
    • Used in some medications as an electrolyte replenisher.
  • pH Regulator:
    • Maintains alkalinity in pharmaceutical formulations.

Water Treatment

  • Softening and pH Control:
    • Neutralizes acidity in water and prevents scaling in boilers and pipelines.
  • Electrolyte in Electrolysis:
    • Used in specific water treatment processes.

Textiles and Dyeing

  • Fabric Preparation:
    • Used in textile finishing to soften water and aid in scouring.
  • Dye Fixation:
    • Improves the fixation of dyes on fabrics by adjusting alkalinity.

Cleaning and Soapmaking

  • Industrial Cleaners:
    • Found in heavy-duty cleaning agents due to its alkaline and water-softening properties.
  • Soap Production:
    • Acts as an essential alkali in making liquid soaps.

Laboratory and Research

  • Buffering Agent:
    • Commonly used in laboratory settings to maintain pH levels in solutions.
  • Reagent:
    • Utilized in various chemical reactions, including the synthesis of potassium compounds.

Personal Care

  • Cosmetics:
    • Occasionally used as a pH adjuster in formulations like shampoos and skin products.

Fire Suppression

  • Fire Extinguishers:
    • Utilized in certain dry chemical fire extinguishers due to its ability to smother flames.

Storage and Handling:

  • Storage Conditions:
    • Store in a cool, dry, and well-ventilated area.
    • Keep in tightly sealed, moisture-resistant containers to prevent clumping or degradation.
    • Avoid exposure to acids, as this can release carbon dioxide gas.
  • Shelf Life: Approximately 2 years under recommended storage conditions.

Additional information

Size

1 Kilogram (2.2 Lbs), 2 Kilogram (4.4 Lbs)