紫外线吸收剂

产品名称：BP-4 (UV-284)

Chemicalname: 2-Hydroxy-4-MethoxyBenzophenone-5-sulphonic acid, Benzophenone-4 (BP-4，UV-284)

MolecularFormula: C14H12O6S

CASNo.:4065-45-6

Specifications:

Appearance: Off-white or lightyellow crystalline powder

Assay:≥99.0

Melting Point:≥140℃

Specific Extinction（1％，25px）：

E285:≥460

E325:≥290

Loss on drying:≤3.0％

Gardner color:≤2.0

Heavy metals:≤5 ppm

Turbidity:≤ 4.0 EBC

PH value:1.2~2.2

Property & Use: The product is non-toxic, non-inflammable,non-explosive. It can be widely used as UV light absorber for water basepolymer coating. The dosage is 0.2-1.5%.

Storage condition: Preserve under tight and light-resistant condition

Package: 25kg /drum