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UV absorber

PRODUCT NAME: BP-12 (UV-531)

Ingredients:2-hydroxy-4-(octyloxy)benzophenone
Molecular formula:C21H26O3
Molecular weight:326
CAS NO.: 1843-05-6
Chemical structural formula:
Technical index:
Appearance:light yellow crystal powder
Content: ≥ 99%
Melting point: 47-49°C
Loss on drying: ≤ 0.5%
Ash: ≤ 0.1%
Light transmittance:

Wave length  nm

Light  transmittance %

450

≥ 90

500

≥ 95


Toxicity: almost non-toxic,rattus norvegicus oral LD 50 =12g/Kg weight.
Use: This product is mainly used in polyolefine, polystyrene, polyester,polyamide glue and others. Man absorption wave length range is 300-375nm.
General dosage 0.2-0.6% .
Solubility: 25°C unit:g/100mLsolvent

solvent

Acetone

Benzene

Methyl  alcohol

n-Heptane

Alcohol  (95%)

Hexane

Water

Solubility

74

72

2

40

2.6

40.1

<0.5