Triclosan

Product name:Triclosan Appearance:White crystalline powder Purity:99% min Melting point:56-58degree celsius

1..White crystalline powder with slight fragrance or the smell of phenol compound.2.Solubility: dissolve slightly in water, medium solubility in dilute alkali solution, easily dissolve in organic solvents such as etyanol and acetone etc. It can be made into transparent highly condensed liquid products after dissolving in surfactants.3.This product has good steadiness for storage.4.This product is with low toxicity and no stimulus for skin toxicology inspections.

Items	Acceptance criteria			Results
Appearance	White crystalline power			White crystalline power
Identification	A.IR spectrum consistent with that obtained with			Consistent
	Triclosan RS
	B.The retention time of the major peak in the			Conforms
	chromatogram of the Assay preparation
	corresponds to that in the chromatogram of the
	Standard preparation, as obtained in the Assay
Water	≤0.1%			0.07%
Residue on ignition	≤0.1%			0.035%
Heavy metals	≤0.002%			<0.002%
Melting Point	56-58°C			56.3-57.5°C
Related substances	Any individual impurity:≤0.1%			0.05%
	Total impurities:        ≤0.5%			0.16%
Assay	97.0-103.0%(on anhydrous basis)			99.84%
Monochlorophenols	≤50ppm			8ppm
2,4-Dichlorophenol	≤10ppm			3ppm
1,3,7-Trichlorodibenzo-p-Dioxin	≤0.25ppm			0.08ppm
2,8-Dichlorodibenzo-p-Dioxin	≤0.5ppm			0.20ppm
2,8- Dichlorodibenzofuran	≤0.25ppm			0.06ppm
2,4,8-Trichlorodibenzofuran	≤0.5ppm			0.24ppm
2,3,7,8-Tetrachloro dibenzo-p-Dioxin	≤1ppt			<1ppm
2,3,7,8-Tetrachloro dibenzofuran	≤1ppt			<1ppm

Triclosan