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Anhydrous Potassium Acetate
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Anhydrous Potassium Acetate

Chemical Name: Potassium Acetate, Anhydrous
Chemical Formula: C₂H₃KO₂ or CH₃COOK
Molecular Weight: 98.14 g/mol
CAS : 127-08-2
Appearance: White crystalline powder with a salty taste
Odor: Odorless or slight acetic acid smell
Density: 1.57 g/cm³ at 25°C
Melting Point: 292°C (with decomposition)
pH: 7.0-9.0 (1 mol/L aqueous solution)
Solubility:
。Highly soluble in water: 235 g/100 mL at 20°C, 492 g/100 mL at 62°C
。Soluble in ethanol: 33 g/100 mL and methanol: 24.24 g/100 mL at 15°C
。Insoluble in ether
Hygroscopicity: Highly hygroscopic (easily absorbs moisture from air)
Stability: Stable under normal conditions; decomposes when heated above melting point 
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Technical Datas

Items

Standards

Content(On Dry Basis) 

≥99% 

Loss On Drying(150℃,2h)

≤8% 

Alkalinity

Normal

Arsenic(As)

≤3mg/kg

Test for sodium

Normal

Lead(Pb)

≤10mg/kg

Heavy Metal(as Pb)         

≤20mg/kg

PH

7.5-9.0


Uses in Food Industry
1. Primary Food Applications
-Buffering Agent: Maintains stable pH in food formulations, particularly in canned/bottled fruits and vegetables, bread, and processed cereal-based foods
-Preservative: Inhibits microbial growth (bacteria and mold) in dairy products, meat products, baked goods, condiments, and sauces, extending shelf life
-Color Fixative: Protects natural colors of animal and plant products from oxidation and fading
-pH Regulator: Adjusts acidity in baby foods and other processed foods without imparting strong acidic taste
-Sodium-Free Alternative: Provides potassium supplementation as a healthier alternative to sodium-based additives
2. Specific Food Products
-Canned and bottled fruits/vegetables
-Bread and bakery products
-Prepacked meat products
-Dairy products (cheese, yogurt)
-Condiments and sauces
-Processed cereal-based foods and baby foods (pH adjustment only)
3. Industrial Applications
-Deicing Agent: Eco-friendly alternative to chloride salts for airport runways and bridges (less corrosive, less harmful to soil)
-Fire Extinguishing: Active agent in Class K fire extinguishers for cooking oil fires
-Catalyst: Production of polyurethanes
-Laboratory Reagent: DNA/ethanol precipitation, protein removal from DNA samples 


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