Several common types of uv absorbers

Common types of UV absorbers

Commercial name: Phenyl salicylate

Phthalates are divided into phthalates

Properties and USES colorless crystalline powder. It has a pleasant aroma (Holly oil and gas). Density 1.250g/cm3, solution point 43, boiling point (1.6kPa) 173. Soluble in ether, benzene and chloroform, soluble in ethanol, almost insoluble in water and glycerin. Content is 99%.

The product is a uv absorbent, used in plastic products, but the absorption wavelength range is narrow. Fda approved acrylic resin for use in contact with food products.

Packing and storage paper drums packed in plastic bags. To be stored and transported according to general chemical regulations.

UV Absorber UV-P

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Properties and use appearance is colorless or light yellow crystal. Soluble in gasoline, benzene, acetone and other organic solvents. In water solubility is very small, not by concentrated alkali, concentrated acid decomposition. It can be ionized with heavy metals to make salt. It can absorb ultraviolet radiation of 270 nm ~ 380nm. The solution point is 130 ~ 131.

This product is mainly used in polyester, polyester containing chlorine, vinegar fiber, polyvinyl chloride, polystyrene, plexiglass, polyacrylonitrile and other resins. The stability of transparent products is better than that of colored products. The dosage in product is 0.% ~ 0.5%.

UV Absorber UV-O

Divided into 2, 4-dihydroxy dibenzophenone

Properties and USES The product is light colored acicular crystal or white powder. Water < 0.5%. Ash 100ml solvent, 25℃) acetone 50, benzene 1, ethanol >50, water <0.5, n-heptane <0.5.

Uv absorbent, suitable for polyvinyl chloride, polystyrene, epoxy resin, cellulose resin, unsaturated polyester, coating and synthetic rubber, etc. The absorbable wavelength range is 280 ~ 340nm, and the general dosage is 0.1%. But the light stability effect of this product is not outstanding.

The transoral LD50 of the product was 8.6g/kg, and the LD502.336mg/kg of the mouse. At doses of 0.19, 0.60 and 1.90g/kg, no toxic effect was observed, but the development and blood phase of the other two groups of experimental animals were affected.