Potassium Benzoate

CAS No.: 582-25-2
Molecular Formula: C₇H₅KO₂
Molecular Weight: 160.21

Description:

Potassium benzoate is a white crystalline powder, widely used as a preservative in food and beverages.

Main Applications:

Food preservative.

Beverage additive.

Intermediate in pharmaceuticals.

Snowhite Potassium Benzoate products are classified into: 

•  Potassium Benzoate Food Grade
•  Potassium Benzoate Tech Grade
•  Potassium Benzoate Pharma Grade

Typical Properties:

Property	Value
Appearance	White crystalline powder
Assay	≥99.0%
Solubility	Soluble in water

 

Potassium Benzoate Food Grade:

Test Item	Unit	Specification
Assay (anhydrous basis)	%	99.0 ~ 100.5
Appearance	-	White crystalline powder, odourless
Loss on drying	%	≤0.5
Alkalinity (as KOH)	%	≤0.06
Arsenic (As)	ppm	≤1

 

Potassium Benzoate Tech Grade:

Test Item	Unit	Specification
Assay	%	≥98.0
Appearance	-	White crystalline powder
Loss on drying	%	≤1.0
Free acid (as Benzoic acid)	%	≤0.5
Free alkali (as KOH)	%	≤0.1
Chloride (as Cl)	%	≤0.1
Sulfate (as SO₄)	%	≤0.1
Water insoluble matter	%	≤0.05
pH (10% aqueous solution)	-	8.0 ~ 10.0

 

Potassium Benzoate Pharma Grade:

Test Item	Unit	Specification
Assay (anhydrous basis)	%	99.0 ~ 100.5
Appearance	-	White crystalline powder, odourless
Loss on drying	%	≤0.3
Residue on ignition	%	≤0.1
Alkalinity (as KOH)	%	≤0.06
Arsenic (As)	ppm	≤1