Chemistry Name:2- phenylbenzimidazole -5- sulfonic acid

Structural formula

CAS#:27503-81-7

Molecular Formular:C13H10N2O3S

Molecular Weight:274.30

Content :98.0%-102.0%

Appearance:White Powder

Specific Absorbance:920-990(1%,0.01cm,at 302nm)

Chloride:<0.05%

Sulfate:<0.05%

Loss on drying: <2%

Melting point: >300 C

Usage:

This is a new ultraviolet absorbent, that reaches as high as 920~990 at 302 nm ultraviolet wavelength. It absorbs the ultraviolet with efficiency three times above ordinary absorbents, non-toxic and no irritating , mainly used in the cosmetics products and the water based coatings.Suggest amount used in the cosmetics products 0.5 %~2 %, and in coating 0.5 %~6 %.
The dissolution in 10 times volume of water, ajust to pH 8 with NaOH, and then put it into in the coatings.

Packing:in 25KG high pressboard drum.