UV Absorber BENZOPHENONE-4
- Basic Information
Product name |
BENZOPHENONE-4; BP-4 ;UV-284 |
CAS No. |
4065-45-6 |
EINECS No. |
223-772-2 |
Molecular Formula: |
C14H12O6S |
Molecular Weight: |
308.31 |
Structure Formula |
|
- Technical Specification
UV Absorber
BENZOPHENONE-4
Item |
Specification |
Appearance |
White or light yellow powder |
Melting point |
≥140ºC |
Loss on drying |
≤5.0 |
Assay UV Absorber BENZOPHENONE-4 |
≥ 99.0% |
PH value |
1.2-2.2 |
Water solution degree of turbidity |
≤4.0EBC |
Hazen |
≤2.0 |
Heavy metal |
≤5ppm |
3. Application field
UV Absorber Benzophenone-4 is a water-soluble & is recommended for the highest sun protection factors. Tests have shown that UV Absorber 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 that UV Absorber Benzophenone-4 is not compatible with Mg salts, particularly in water-oil emulsions.
UV Absorber Benzophenone-4 has a yellow color that becomes more intensive in the alkaline range & may alter the due of colored solutions.
4. Packing
UV Absorber BENZOPHENONE-4
25kg per drum
Other package sizes are available upon request.
5. Storage
Store in a well-ventilated, cool, dry area, out of direct sunlight. Keep containers tightly closed when not in use.
6. Period of validity
24 months