Benzophenone-3

CAS NO.：131-57-7

Product specification:

1. Appearance: light yellow crystalline powder

2. Content: 99% min

3. Melting point: 62-64 ℃

4. Volatile: 0.5% max

5. Heavy metal content (PPM): 5.0% max

6. Light transmittance: 285nm: 630min

325nm：400min

The product is an ultraviolet absorber, which can effectively absorb 290-400 nm ultraviolet light and hardly absorb visible light, so it is especially suitable for light color transparent products. The product has good light and thermal stability and does not decompose at 200 ℃. It can be used in paint and various plastic products. It is mainly used in PVC, polyester, acrylic acid, resin, polystyrene, etc. it is also a good cosmetic additive.

This product is a general chemical product with good storage and transportation stability, non flammable and explosive, non-toxic and harmless.

Properties

UV-9 is a light yellow or white crystalline powder, which is suitable for PVC, PVDC, PMMA, unsaturated polyester, ABS resin, cellulose resin and other plastics. The maximum absorption wavelength range is 280-340 nm, and the general dosage is 0.1-1.5%. It has good thermal stability and does not decompose at 200 ℃. This product can hardly absorb visible light, so it is suitable for light color transparent products. It can also be used in paint and synthetic rubber. UV absorbers for UV absorption, no teratogenicity, good light and thermal stability, UV Absorbents UV-9 can absorb UV-A and UV-B at the same time. It is a class I sunscreen approved by the US FDA. The frequency of use in the US and Europe is high. UV-9 is widely used in sunscreen lotion, cream, honey, emulsion, oil and other sunscreen cosmetics. UV-9 can also be used as an anti tarnishing agent for photosensitive products. In addition, due to its good compatibility with many plastics and resins, UV-9 is usually used in many fields such as PVC and unsaturated polyester.

CAS No.

131-57-7

Formula

C14H12O3

Molecular Mass

228.24300

Exact Mass

228.07900

PSA

46.53000

Logp

2.63180