[Molecular formula]: C7H5NaO2   

[Molecular weight]: 144.11   

[CAS NO]: 532-32-1

[Appearance]: White granule or crystalline powder, no savor or a bit benzoic savor.

[Use]: Antiseptic, anti-animalcule and antifreezing agent used in food, medicine, tobacco, plating, printing and dyeing.

[Standard packaging]: braided bag(25kg net) lined with plastic bags.

[Quality index]: in accordance with GB1902-2005 standard for edible grade and BP98 and China national codex 2000 for medicinal grade

Item	GB1902-2005 version	BP98 version	China pharmacopoeia 2000 version
Content(base on C7H5NaO2 dry basis),% ≥	99.0	99.0-100.5	99.0
Drying loss,% ≤	1.5	2.0	1.5
Dissolve	Meet the stipulation	Meet the stipulation	/
Transparency and color	/	Meet the stipulation	/
Alkalinity acidity;	Meet the stipulation	Meet the stipulation	Meet the stipulation
Cchloride (base on Cl), ≤	500PPm	200PPm	/
Chloride(base on Cl), ≤	/	300PPm	/
Heavy metal(base on Pb), ≤	10PPm	10PPm	10PPm
As(base on As), ≤	2PPm	/	5PPm
Sulfate (base on SO4), ≤	1000PPm	/	/
Readily oxidizable substance	Passed the test	/	/
o-benzene tricarbonic acid	Passed the test	/	/