chemical name:
2-(2-hydroxy-3, 5-diamylphenyl)benzotriazole; 2-(2-hydroxy-3, 5-dipentylphenyl)benzotriazole
molecular formula: c
22h
29n
3o
molecular weight: 351.5
cas no.: 21615-48-6
chemical structural formula:
appearance: white to light yellow powder
content: ≥ 99%
melting point: 80-83°c
loss on drying: ≤ 0.5%
ash: ≤ 0.1%
light transmittance:
wave length nm light transmittance %
440 ≥ 96
500 ≥ 97
toxicity: low toxicity and used in food packing materials.
use: this product is mainly used in polyvinyl chloride, polyurethane, polyster resin and others. max absorption wave length range is 345nm.
water solubility: soluble in benzene, toluene, styrene, cyclohexane and other organic solvents.
general dosage: .
1. unsaturated polyester: 0.2-0.5wt% based on polymer weight
2. pvc:
rigid pvc: 0.2-0.5wt% based on polymer weight
plasticized pvc: 0.1-0.3wt% based on polymer weight
3. polyurethane: 0.2-1.0wt% based on polymer weight
4. polyamide: 0.2-0.5wt% based on polymer weight
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