UV ABSORBER
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Ultraviolet absorbent UV-P
Hangzhou caidie chemical co.,ltd. http://www.caidiechem.com | Updated:2013-06-08 | Source:  | Read:3680

Chemical Name : 3 - ( 2'- hydroxy -5'- methylphenyl) benzotriazole
Formula : C 13 H 11 N 3 O 
Molecular Weight : 225.3 
CAS NO. : 2440-22-4


Chemical Structure :
Sales Code : PS-P 
Appearance : white to pale yellow crystalline powder
Content : ≥ 99% 
Melting Point : 128-130 ° C 
Loss on drying : ≤ 0.5% 
Ash : ≤ 0.1% 
Transmittance :

Wavelength nm

Transmittance %

440

≥ 97

500

≥ 98


Toxicity : low toxicity, rats by oral LD50> 5g/Kg body weight. 
Usage : As the ultraviolet absorber, the product is mainly suitable for polyester, epoxy, cellulose acetate, polyvinyl chloride, polystyrene, glass, polyacrylonitrile resin. Maximum absorption wavelength range 270-380 nm . 
General dosage : thin products 0.1-0.5% , thick products 0.05-0.2% . 
Solubility : 25 ° C Unit : g/100mL solvent

Solvent

Solubility

Solvent

Solubility

Acetone

2.5

Dioctyl phthalate

2.5

Ethanol

0.3

Dioctyl sebacate

2.4

Methanol

0.2

A ethanol

3.9

Carbitol

2.6

Methyl methacrylate

5.0

Ethyl acetate

3.5

Styrene

7.2

Butyl acetate

3.0

Tricresyl

3.3

Benzene

6.9

Solvent naphtha

0.9

Toluene

6.0

Petroleum solvents

1.5

Cyclohexane

0.7

Water

0

 

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