UV Absorber Bp-4 (UV-284)

• CAS No.: 4065-45-6
• Formula: C14h12o6s
• EINECS: 223-772-2
• Color: off White to Little Yellow
• Appearance: Powder
• Storing: Cool, Dry, Well-Ventilated Area Away From Incompat
• Model NO.: CAS Number 4065-45-6
• Transport Package: 25kg Carton
• Specification: powder
• Trademark: DEBORN
• Origin: China

Product Description

Chemical Name: 2-Hydroxy-4-Methoxy Benzophenone-5-Sulphonic Acid
Synonyms:2-benzoyl-5-methoxy-1-phenol-4-sulfonicaci
Molecular Formula  C14H12O6S
Molecular Weight   308.31
Structure


CAS Number   4065-45-6

Specification

Appearance:Off-white or light yellow crystalline powder
Assay (HPLC): ≥99.0%
PH Value:1.2~2.2
Melting Point:≥ 140ºC
Loss on Drying:≤ 3.0%
Turbidity in water:≤ 4.0EBC
Heavy Metals :≤ 5ppm
Gardner Color:≤ 2.0

Applications:
Benzophenone-4 is a water-soluble & is recommended for the highest sun protection factors. Tests have shown that Benzophenone-4 stabilizes the viscosity of gels based on polyacrylic acid (Carbopol, Pemulen) when they are exposed to UV radiation. Concentrations as low as 0.1% provides good results. It is used as ultra-violet stabilizer in wool, cosmetics, pesticides &lithographic plate coating. It must be noted
tha tBenzophenone-4is not compatible with Mg salts, particularly in water-oil emulsions. Benzophenone-4 has a yellow color that becomes more intensive in the alkaline range & may alter the due of colored solutions.

Package and Storage

1. 25kg carton
2. Store the product in a cool, dry, well-ventilated area away from incompatible materials.

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