UV-327
CAS NO:3864-99-1
Chemical name:2-(2`-Hydroxy-3`,5`-di-tert-butylphenyl)-5-chlorobenzotriazole
Molecular Formula: C20H24N3OCl
Molecular Weight：357.9
Structural Formula:
Specification
Appearance：slightly yellow powder
Assay：99.0%min
Melting range：154-158℃min
Volatile：0.3%max
Light Transmittance：
440nm 97%min
500nm 98%min
Solubility(20℃ %w/w)：Water < 0.01,Acetone 1,Benzene 16,Chloroform 19
Cyclohexane 5,Ethyl acetate 5,n-Hexane 4,Methanol < 0.1,
Methylene chloride 17
Application: It is a highly effective light stabilizer for a variety of plastics and other organic substrates. Due to its red-shifted UV absorption, it is particularly suited for use in the stabilization of polymers that are especially sensitive to long-wavelength UV radiation (e.g. polyurethanes, polyphenylene sulfide) and in certain applications where very low transmission of long-wavelength UV radiation is required (e.g. optical lenses). It can protect the polymer to its maximum extent, helps to reduce the color. It can also delay the yellowing and obstacle the loss of its physical function. Its use is recommended in a variety of polymers and organic substrates, including acrylic polymers, polycarbonate, polyesters, styrene homo-and copolymers, unsaturated polyesters, polyvinylchloride, polyolefins, polyvinyl butyral, elastomers, and adhesives.
Toxicity and safety: This product is nontoxic, inflammable, noncroddible and well stable.LD50:5000mg/kg min
Packing: Packed in fibre drums lined with plastic bags with the net capacities of 25 kg per bag or as required by the customers.Storage: It should be stored in a close system and kept in a dry, close and shade place
