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Nickname: 2,4-dihydroxybenzophenone
Appearance: Light colored needle shaped crystals or white powder.
Moisture content:<0.5%. Ash content<0.5%.
Melting point: 136~149 ℃.
Soluble in acetone, methanol, ethanol, methyl ethyl ketone, dioxane, N-methylpyridinone, and ethyl acetate, extremely insoluble in water, n-heptane, and benzene. The solubility of this product in some solvents (g/100ml solvent, 25 ℃) is acetone 50, benzene 1, ethanol>50, water<0.5, n-heptane<0.5.
Product usage and precautions:
This product is a UV absorber suitable for polyvinyl chloride, polystyrene, epoxy resin, cellulose resin, unsaturated polyester, coatings, and synthetic rubber. The maximum absorption wavelength range is 280~340nm, and the general dosage is 0.1% 1%. But the light stabilization effect of this product is not outstanding.
Safety precautions: This product has an oral LD50 of 8.6g/kg in mice and a LD50 of 2.336mg/kg in mice. At doses of 0.19, 0.60, and 1.90g/kg, no toxic effects were observed. The other two groups of doses had an impact on the development of experimental animals and showed changes in blood phase.
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