UV-326

Chemical name		2 - (2 '- hydroxy-3' - tert butyl – 5 '- methylphenyl) - 5-chlorobenzotriazole
Chemical formula		C17H18N3OCl
Chemical structure diagram
CAS NO.		3896/11/5 896-11-5
Molecular weight		315.8
Quality index	appearance	Light yellow crystalline powder
	content	≥99%(HPLC)
	melting point	137-142℃
	ash content	≤0.1%
	Volatile matter	≤0.5%
	Transmittance	460 nm≥93% 500 nm≥96%

Features and Applications

This product is a high-efficiency ultraviolet absorber, which can effectively absorb ultraviolet light with a wavelength of 270-380 nm;
Tasteless, high temperature resistant, good heat stabilizer;
It is yellow and oil resistant under alkaline conditions;
This product hardly absorbs visible light and is especially suitable for colorless, transparent and light colored products.
It is mainly used for polyolefins (especially food grade products), polyvinyl chloride, polyamide, ABS resin, as resin and polyurethane

Recommended addition	polyvinyl chloride	polyolefin	ABS resin
	0.3-0.5%	0.2-0.5%	0.3-0.5%
Packing	20kg carton / cardboard barrel

Properties

As a high-efficiency ultraviolet absorber, this product can effectively absorb ultraviolet light with a wavelength of 270-380 nm. It is mainly used for polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethylmethacrylate, polyethylene, ABS resin, epoxy resin and cellulose resin. This product hardly absorbs visible light. It is especially suitable for colorless, transparent and colored products. The general dosage is 0.1-0.5% in thin products and 0.05-0.2% in thick products. This product is allowed to be used for plastic products in contact with food.

CAS No.

3896-11-5

Formula

C17H18ClN3O

Molecular Mass

315.79700

Exact Mass

315.11400

PSA

50.94000

Logp

4.38540