Triclosan

Items

Specifications

Character

Fine, whitish crystalline powder melts at about 56.5℃(release limit 56-58℃)

Solubility

Practically insoluble in water, soluble in methanol, in alcohol and in acetone; slightly soluble in hexane

Identification

A. Conforms by infrared absorption

B. The retention time of the major peak in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation, as obtained in the assay

Water

Not more than 0.1%

Residue on ignition

Not more than 0.1%

Heavy metals

Not more than 0.002%

Related compounds

Any individual impurity: nmt0.1% total impurities: nmt0.5%

Limit of

Monochloro phenol

≤ 50 mg/kg

2,4 dichloro phenol

≤ 10 mg/kg

Limit of  

2,8 dichloro dibenzo furan

≤ 0.25 mg/kg

2,4,8 trichloro dibenzo furan

≤ 0.50 mg/kg

1,3,7 trichloro dibenzo-p-dioxin

≤ 0.25 mg/kg

2,8 dichloro dibenzo-p-dioxin

≤ 0.50 mg/kg

Limit of

2,3,7,8 tetra chloro

Dibenzo-p-dioxin

≤ 0.001ug/kg

2,3,7,8-tetra chloro dibenzo furan

≤ 0.001ug/kg

Assay

97.0% - 103.0% of c12 h7 cl3 o2 calculated on anhydrous basis