Ultraviolet absorbers UV-531 CAS NO 1843-05-6

Basic Information
Place of Origin: China
Brand Name: LONGPU
Minimum Order Quantity: 50KG
Packaging Details: 25kg
Payment Terms: T/T ,L/C
Supply Ability: Prompt

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

Benzene

Methyl alcohol

n-Heptane

Alcohol (95%)

Hexane

Water

Solubility

74

72

2

40

2.6

40.1

<0.5

 

 

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