UV Absorber 328 CAS NO.25973-55-1

FOB Price:: USD 1.00-2.00 /Metric Ton Get Latest Price

Min.Order Quantity:: 5 Metric Ton

Purity:: 99%

Port:: Qingdao Port

Payment Terms:: L/C,T/T

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Product Details

Keywords

UV Absorber 328
2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
CAS: 25973-55-1

Quick Details

ProName: UV Absorber 328
CasNo: 25973-55-1
Molecular Formula: C22H29N3O
Appearance: slight yellow powder
Application: UV Absorber For Plastics
DeliveryTime: Within 2 weeks after order confirmatio...
PackAge: 25kg/drum
Port: Qingdao Port
ProductionCapacity: 10000 Metric Ton/Year
Purity: 99%
Storage: Store in cool and dry place, away from...
Transportation: By sea or by air
LimitNum: 5 Metric Ton
Initial Melting Point: 80-88 °C
Heating Loss: ≤ 0.5%
Ash: ≤ 0.1%
CAS: 25973-55-1
MF: C22H29N30

Superiority

uv-328(benzotriazole uv absorber )

chemical name : 2-(2'-hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole

introduction : uv-328 is a benzotriazole type ultraviolet light absorber (uva), imparting good light stability for plastics and other organic polymers. uv-328 protects polymers as well as organic pigments from uv radiation helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering.

molecular formula : c22h29n30

cas no : 25973-55-1

physical properties

molecular weight : 351.5

appearance : slight yellow powder

melting range : 80-88 °c

flashpoint : 229 °c

specific gravity(20 °c ) : 1.17g/cm3

volatility pure substance; tga, heating rate 20 °c /min in air

weight loss (%)	temperature °c
1.0	183
2.0	202
5.0	223

Details

solubility at 20 °c (g/100ml solvent)

solvent	solubility
acetone	6%
benzene	39%
butyl carbitol	3.5%
butanol	2.5%
butylacetate	15%
chloroform	44%
ethyl acetate	20%
ethylglycol	4%
n-hexane	16%
mek	14%
methanol	0.4%
xylene	34%
methylene chloride	56%
water	<0.01%