uv absorber / uv-p / 2-(2h-benzotriazol-2-yl)-p-cresol cas 2440-22-4

Description

CAS 2440-22-4 (UV Absorber / UV-P)Quick Details

Chemical Name: UV Absorber/ UV-P / 2-(2H-Benzotriazol-2-yl)-p-cresol

CAS No.:2440-22-4

Molecular Fomula: C13H11N3O

Molecular weight: 225.25

Chemical Structure:

Appearance:white to light yellow crystal powder

Content: ≥ 99%

Wave length nm	Light transmittance %
440	≥ 97
500	≥ 98

Toxicity: low toxicity,rattus norvegicus oral LD50 >5g/Kg weight.
Use: This product is suitable in polyester, epoxy cellulose acetate, Polyvinyl chloride, organic glass and others. Max absorption wave length range is 270-380nm .
General dosage:thin products: 0.1-0.5% , thick products: 0.05-0.2% .
Solubility: 25°C unit:g/100mLsolvent

Solvent	Solubility	Solvent	Solubility
Acetone	2.5	Dioctyl phthalate	2.5
Alcohol	0.3	Di-n-octyl sebacate	2.4
Methyl alcohol	0.2	A Ethanol	3.9
2-(2-Ethoxyethoxy)ethanol	2.6	Methyl methacrylate	5.0
Ethyl acetate	3.5	Styrene	7.2
n-Butyl acetate	3.0	Tricresyl phosphate	3.3
Benzene	6.9	Solvent gas	0.9
Toluene	6.0	Petroleum solvent	1.5
Cyclohexane	0.7	Water	0

CAS 2440-22-4 (UV Absorber / UV-P)Typical Properties

Item		Standard
Appearance		Light yellow crystals
Melting point℃		128.0~132.0
Ash%≦		0.1
Loss on drying%≦		0.5
HPLC %≧		99.0
Transmittance %≧	440nm	97.0
	500nm	98.0

CAS 2440-22-4 (UV Absorber / UV-P) Usage

UV Absorber / UV-P is used as a UV absorber for plastics, fibers and coatings such as polyester, polystyrene, acrylic, and polyvinyl chloride.

CAS 2440-22-4 (UV Absorber / UV-P)Packaging and Shipping

Packing: 25kg/carton

Delivery:delivery within 3-5working days

CAS 2440-22-4 (UV Absorber / UV-P)Storage

Avoiding light and drying.