Description:colorless acicular crystal or white crystal powder. Tasteless, slight special smell. Melting point:132~135℃; Boiling point:228℃(resolve); Flash point: 127℃.Difficultly soluble in water(0.16g/100ml,20℃),soluble in alcohol(1g/10ml),in diethyl ether(1g/10ml),in anhydrous alcohol(12.9g/100ml),in peanut oil(0.9g/100ml),in glycerin(0.3g/100ml)and in acetic acid(11.5g/100ml)。
Specification:
Item
Specification
Appearance
Colorless needles or as a white to off-white, free-flowing powder
Solubility
It is slightly soluble in water. One g dissolves in about 10 mL of ethanol and in about 20mL of ether.
Identification
Positive
Assay
99.0%-101.0%
Melting Point
132.0-135.0 °C
Residue on ignition
NMT 0.2%
Water
NMT 0.5%
Arsenic
NMT 3 mg/kg
Heavy metals (as Pb)
NMT 10 mg/kg
Lead
NMT 2 mg/kg
Mercury (Hg)
NMT 1 mg/kg
Usage:the product mainly used for food,tobacco,medicine,feed and cosmetics, is regarded as low toxicity, highly efficiency food preservative internationally. It can remarkably inhibit putrefactive bacterial, molds, yeast and aerobic bacterial.