Sodium acetate (trihydrate) is widely used as a shelf-life extending agent, pH regulator, etc. as it has properties to solve in water well.


What is Sodium acetate (trihydrate) (CH3COONa・3H2O)?


Acetic acid has been said to prevent bacteria cultivation and therefore has been used not only to add sour taste but to preserve food.
Sodium acetate is a food additive obtained by neutralization of acetic acid. When used as a food additive, sodium acetate can be indicated by its group name, substance name or abbreviated name according to the purpose of use.

Purpose Group name or abbreviated name
Keep the pH level of food in the appropriate level pH regulator
Improve taste by adding or enhancing sour taste Sour agent
Improve taste by adding or controlling taste Seasoning (organic acid)
Other purposes (shelf-life extension, combined use with preservative, etc.) Sodium Acetate

What is pH regulator?


pH regulator is a food additive added to maintain the pH level of food in a suitable range so as to prevent deterioration of food quality or food color or to enhance the effect of other food additives. By adding pH regulator, food is maintained under slightly acidic conditions within the pH level of four to five, to prevent the decay of food by suppressing bacteria proliferation for extending a shelf-life of food.

Representative food

Eggs, Salad dressing, Sauce, etc.

Product Specification


Item Unit Standard value
Content Not less than 98.5
Appearance White crystalline powder
Identification Passes
Solution Colorless and clear
Free acid Not more than 0.03
Free alkaline Not more than 0.05
Heavy metal (as Pb) ㎍/g Not more than 2
Arsenic (as As) ㎍/g Not more than 3
Loss on drying 36.0~42.0

Specification is based on Japanese Standard of Food Additives (JSFA)



20kg/package, craft paper bag with polyethylene inner layer

Inquiries Concerning Products

Food Additives Sodium Acetate (Trihydrate)

Mitsubishi Chemical Corporation
Food / Healthcare Dept.

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