Specifications
A kind of excellent water-soluble ultraviolet absorber, also as UV Absorbers for other water-soluble printing ink and dopes.
Product name: UV absorber benzophenone-4
Appearance: White or light yellow crystalline powder
Synonyms: 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid; UV- 284; BP-4
Molecular Formula: C14H12O6S
Structural formula:
Molecular Weight: 308.31
CAS No.: 4065-45-6
Appearance: White or light yellow crystalline powder
Assay: 99% min
Heavy metals: 5ppm max.
Colour (Gardner-10% aqueous solution): 1.0 max.
Loss on drying: 3% max
pH value: 1.2-2.2
UV Absorbance Max at 285nm: 460 min.
UV Absorbance Max at 325nm: 290 min.
Melting Point: 140oC min.
Turbidity in water (EBC): 1.5 max
Applications: UV Absorber Benzophenone-4 is a kind of excellent water-soluble ultraviolet absorber, which is generally used for water-soluble cosmetics to resist solarization and also as UV Absorbers for other water-soluble printing ink and dopes.
Package: Packed in 25kgs fiber drum with double PE liners, or according to customers' request.
Storage: Preserve in tight, light-resistent containers
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