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Benzotriazole Based Ultraviolet Absorbers
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2-(2’-hydroxy-3’-t-butyl-5’-methylphenyl)-5-chlorobenzotriazole.
Synonym: 2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol
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PowerSorb™ 326 is a UV absorber of the hydroxyphenylbenzotriazole class, which imparts outstanding light stability to plastics and other organic substrates.
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Chemical Name: |
2-(2’-hydroxy-3’-t-butyl-5’-methylphenyl)-5-chlorobenzotriazole |
CAS No.: |
3896-11-5 |
EINECS No.: |
223-445-4 |
Formula: |
C17H18 N3OCl |
Molecular
Weight: |
316 |
Density(20°C): |
1.32g/cm3 |
Melting Point(°C): |
138-142°C |
Flash Point(°C): |
238°C DIN 51584 |
Vapor Pressure(20°C): |
7.5E-7Pa |
Volatile Loss(%): |
Max.0.5 |
Color of Solution 460nm(%): |
Min.97 |
Color of Solution 500nm(%): |
Min.98 |
Appearance: |
Pale Yellow Powder |
Ash(%): |
Max.0.1 |
Min. Purity: |
99% |
Solubility (20°C) |
% w/w |
Acetone: |
1.0 |
Benzene: |
10.5 |
Chloroform: |
11.0 |
Cyclohexane: |
6.4 |
Ethanol: |
0.1 |
Ethyl acetate: |
2.0 |
n-Hexane: |
1.0 |
Methanol: |
0.1 |
Dichloromethane: |
4.3 |
Toluene: |
11.3 |
MEK: |
13.3 |
Styrene: |
12.0 |
Mineral spirits: |
1.5 |
Water: |
<0.01 |
PowerSorb™ 326 is especially suited for polyolefins and cold cured polyesters.
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PowerSorb™ 326 is supplied in 20Kg cartons or drums. |
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