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Ultraviolet absorbent UV-327

Hangzhou caidie chemical co.,ltd. http://www.caidiechem.com | Updated：2013-06-08 | Source: 　| Read:15910

Chemical name : 2 - ( 2'- hydroxy -3 ', 5'- di-t-butyl-phenyl) -5 - chloro-benzotriazole
Formula : C 20 H 24 N 3 OCL
Molecular weight : 357.9

CAS NO. : 3864-99-1

Chemical Structure :

Sales Code : PS-7
Appearance :  light yellow powder
Content : ≥ 99%
Melting Point : 154-158 ° C
Loss on drying : ≤ 0.5%
Ash : ≤ 0.1%
Transmittance :

Wavelength nm	Transmittance %
440	≥ 97
500	≥ 98

Toxicity :  low toxicity, rat oral  LD50 = 5g/Kg  weight.
Usage :  As the ultraviolet absorber, the product is mainly used in polyolefins, can be used for PVC, polycarbonate, polyurethane, glass and a variety of coatings. Maximum absorption wavelength range  270-400 nm  .
Solubility : 25 ° C  Unit : g/100mL solvent

Solvent	Solubility	Solvent	Solubility
Acetone	1.4	Dioctyl phthalate	2.7
Ethanol	0.1	Methyl ethyl ketone	3.4
Methanol	0.04	Methyl methacrylate	3.9
Carbitol	1.0	Styrene	7.2
Ethyl acetate	4.9	Tricresyl	13.4
Butyl acetate	4.8	Turpentine	1.9
Benzene	16.1	Petroleum solvents	3.7
Toluene	16.3	Cyclohexane	3.9
Cyclohexane	6.8

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