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Shanghai Sunwise Chemical Co., Ltd.

UV328, CAS No. 5973-55-1, Soluble in Acid manufacturer / supplier in China, offering Excellent Ultraviolet Absorber CAS No. 5973-55-1; UV328, 5-Methyl-1h-Benzotriazole 99% Powder CAS: 136-85-6, Light Stabilizer CAS No. 1843-05-6; UV 531 and so on.

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Supplier Homepage Product Plastic, Additives and Resins Excellent Ultraviolet Absorber CAS No. 5973-55-1; UV328

Excellent Ultraviolet Absorber CAS No. 5973-55-1; UV328

FOB Price: US $1-100 / KG
Min. Order: 1 KG
Min. Order FOB Price
1 KG US $1-100/ KG
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Production Capacity: 20mts/Month
Transport Package: in 20kgs Net Carton
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: UV Absorbe
  • Appearance: Powder
  • Melting Point: 81.0 Temperature Min
  • Transmittance 460nm: 98.0% Min
  • Ash: 0.05% Max
  • Origin: China
  • Kind: UV Absorbe
  • Purity: 99.0% Min
  • Volatiles: 0.50% Max
  • Transmittance 500nm: 99.0% Min
  • Trademark: SWE
Product Description

Excellent ultraviolet absorber. UV  max: 345nm. Good solubility for polymer and little volatility. Mainly used for PE, PP,PS,PVC, poly ester and ABS resins, etc.

Product Name  UV 328

Synonyms 2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole
Molecular Formula C22H29N3O
Molecular Weight  351.49
CAS Number  25973-55-1


Appearance  :   light yellowish powder
Melting Range:  80-83 °C
Specific Gravity : 
1.17g/cm3 at 20 ºC
Solubility :  insoluble in water; soluble in acid, benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethyl alcohol and methyl alcohol
Stability :stable under ordinary conditions

Appearancelight yellowish powder
Purity 99.0% min
Melting point81.0ºC min
Volatiles0.50% max
Ash0.05% max
Transmittance 460nm 98.0% min
Transmittance 500nm99.0% min
Packing and Storage
Packing    In 20kgs net carton
Storage    Keep tightly closed and store in cool and dry place
Safety Information
Non-hazardous for air, sea and road freight.
Excellent Ultraviolet Absorber CAS No. 5973-55-1; UV328


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