Chemical Name : 3 - ( 2'- hydroxy -5'- methylphenyl) benzotriazole
Formula : C 13 H 11 N 3 O
Molecular Weight : 225.3
CAS NO. : 2440-22-4

Chemical Structure :
Sales Code : PS-P
Appearance : white to pale yellow crystalline powder
Content : ≥ 99%
Melting Point : 128-130 ° C
Loss on drying : ≤ 0.5%
Ash : ≤ 0.1%
Transmittance :
Wavelength nm
|
Transmittance %
|
440
|
≥ 97
|
500
|
≥ 98
|
Toxicity : low toxicity, rats by oral LD50> 5g/Kg body weight.
Usage : As the ultraviolet absorber, the product is mainly suitable for polyester, epoxy, cellulose acetate, polyvinyl chloride, polystyrene, glass, polyacrylonitrile resin. Maximum absorption wavelength range 270-380 nm .
General dosage : thin products 0.1-0.5% , thick products 0.05-0.2% .
Solubility : 25 ° C Unit : g/100mL solvent
Solvent
|
Solubility
|
Solvent
|
Solubility
|
Acetone
|
2.5
|
Dioctyl phthalate
|
2.5
|
Ethanol
|
0.3
|
Dioctyl sebacate
|
2.4
|
Methanol
|
0.2
|
A ethanol
|
3.9
|
Carbitol
|
2.6
|
Methyl methacrylate
|
5.0
|
Ethyl acetate
|
3.5
|
Styrene
|
7.2
|
Butyl acetate
|
3.0
|
Tricresyl
|
3.3
|
Benzene
|
6.9
|
Solvent naphtha
|
0.9
|
Toluene
|
6.0
|
Petroleum solvents
|
1.5
|
Cyclohexane
|
0.7
|
Water
|
0
|
|