Properties & Applications & PackagesInquiry

Technical Datas

Items	Standards
Content (C4H6O4Ca,In terms of anhydrous matter)	98.0-102.0%
Moisture	≤7%
Fluoride(as F)	≤0.005%
Chlorides(as Cl)	≤0.05%
Sulfates (SO4)	≤0.1%
Lead (Pb)	≤2mg/kg
Arsenic(As)	≤2mg/kg
pH value (20g/L)	6.0-8.0

Physical Properties

Appearance: White or almost white, odorless or almost odorless, hygroscopic powder or crystalline solid

Density: Relative density 1.50

Solubility: Readily soluble in water (approximately 37 g per 100 g water at 0°C, decreasing to about 29-30 g at 100°C); slightly soluble in ethanol

Decomposition: Decomposes at 160°C to produce acetone vapor and calcium carbonate

Stability: Very hygroscopic; the anhydrous form is especially moisture-sensitive, making the monohydrate the common form

Chemical Properties

Thermal Decomposition: When heated to 160°C, it decomposes according to the reaction:

(CH₃COO)₂Ca → CH₃COCH₃ + CaCO₃

Acid Reaction: Reacts vigorously with strong acids to produce acetic acid fumes

Flammability: Flammable; can form a flammable gel when mixed with alcohol (used in products like "Sterno" and "California snowballs")

Main Applications and Uses

1. Food Industry (E263)

Calcium Fortifier: Serves as an easily absorbable calcium source in dairy products, cereals, beverages, and infant food (better absorption than inorganic calcium)

Coagulant: Used in tofu production, creating a more uniform, tender gel structure with improved water retention compared to traditional gypsum

Preservative/Antimold: Extends shelf life of bread, baked goods, and pastries by 2-3 times by inhibiting mold and bacterial growth

pH Regulator: Functions as a buffer to stabilize acidity in beverages, jams, and pickled foods

Multifunctional Additive: Acts as sequestrant, stabilizer, flavor enhancer, and processing aid

2. Medical and Pharmaceutical

Oral Calcium Supplement: High solubility in gastrointestinal tract makes it suitable for individuals with low stomach acid (e.g., elderly, children)

Phosphate Binder: Used to treat hyperphosphatemia in chronic renal failure patients by binding dietary phosphate in the GI tract to form insoluble calcium phosphate for excretion

3. Industrial Applications

Acetone Production: Classic industrial method involving pyrolysis at 400-500°C to generate acetone and calcium carbonate, still used for small-scale, high-purity acetone

Chemical Reagent: Laboratory reagent for organic synthesis, water hardness testing, and synthesis of other calcium compounds

Textile Industry: Used as a mordant to fix dyes

Soap Manufacturing: Acts as an alkali (base) in soap production

Corrosion Inhibitor: Used as corrosion阻抑剂 in various applications

Eco-friendly Deicing Agent: As a road deicer, it reduces concrete erosion by over 60% and metal corrosion by 40% compared to traditional chloride salts, suitable for bridges and airports

4. Other Specialized Uses

Used in synthesis of dye-sensitized solar cells

Applied in polyester industry

Forms flammable gels with alcohol for specialized fuel products

Calcium Acetate