ultraviolet absorber uv-p is a light stabilizer that can absorb the ultraviolet part of sunlight and fluorescent light sources without changing itself.
physical data:
ultraviolet absorber uv-p appears as colorless or light yellow crystals. soluble in a variety of organic solvents such as gasoline, benzene, acetone, etc., and has very little solubility in water. can be dissolved in alkali to form yellow salt.
melting point: 125.5-129.5°c (lit.),
boiling point: bp10 225°,
flash point: 54°c,
water solubility: 173μg/l at 20℃.
uses:
used as polyester, polystyrene, acrylic resin, polyvinyl chloride and other plastics and fibers and uv absorbers for coatings.
