Salts & Minerals
REACH
Sodium acetate trihydrate
CAS Number
6131-90-4
EC Number
612-115-9
What is Sodium acetate trihydrate?
Sodium acetate trihydrate (CAS 6131-90-4), also known as hot ice, is the crystalline hydrated form of sodium acetate.
Where is Sodium acetate trihydrate used?
- Food production: regulates acidity in snack seasonings, sauces and cured meats, extending shelf life as a preservative
- Pharmaceuticals: buffering agent in intravenous solutions, dialysis fluids and topical formulations
- Water treatment: carbon source supporting biological denitrification in municipal and industrial effluent systems
- Personal care: stabilizes pH in shampoos, skin creams and toners
- It functions as a pH buffer, preservative and chemical intermediate.
Other Names (Synonyms)
sodium acetate hydrate|hydrated sodium acetate|hot ice|Acetic acid, sodium salt, trihydrate|Tutofusin|RefChem:887213|Acetic acid, sodium salt, hydrate (1:1:3)
What are the physical properties of Sodium acetate trihydrate?
Melting Point 58.17 °C
Boiling Point >400°C
Density 1.5 g/cm³ (approx)
Flash Point >250°C
Appearance white to colourless crystals or powder
Color White tranparent
Odor Slight acetic acid
Form Solid
Water Solubility 762 g/L (20 ºC)
pH 7.5-9.0 (25℃, 50mg/mL in H2O)
Log P -0.285 (est)
Which trade and regulatory codes apply to Sodium acetate trihydrate?
HS Code 29152200
WGK (Germany) 1