UV Absorber 320
Details
Chemical Name |
2-(2'-hydroxy-3',5'-di-t-butyl-phenyl)benzotriazole |
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Formula |
C20H25N3O |
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Structure |
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CAS NO. |
3846-71-7 |
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Molecular Weight |
323.4 |
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Specifications |
Appreance |
Yellowish crystalline powder |
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Purity |
≥99%(HPLC) |
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Melting Point |
152-156 ℃ |
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Ash |
≤0.1% |
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Loss On Drying |
≤0.3% |
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Transmittance |
460 nm≥97% 500 nm≥98% |
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Advantage and |
|
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Recommended |
PVC |
unsaturated polyester |
Polyester |
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0.25-0.5 % |
0.2-0.4% |
0.3-0.5% |
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Package |
20/25KG cartons or drums |
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