CAS No. 3896-11-5 Ultra Violet Absorber; UV 326

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    Long-term effective

  • Last update:

    2017-09-11 10:17

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Company Profile

Shanghai Sunwise Chemical Co., Ltd.

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Contact:Ms. Alice Ma(Mr.)  

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Telephone:

Area:Shanghai

Address:Shanghai

Website: http://sunwisechem.jmwansheng.com/

Product details

uv-326 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-326 is especially suited for polyolefins and cold cured polyesters. It protects polymers from UV radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins.

Product Name UV 326
 
Identification
Synonyms 2-(2'-Hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzortriazole
Molecular Formula C17H18N3OCl
Molecular Weight 315.8
CAS Number 3896-11-5
EINECS/ELINCS 223-445-4

Properties
Appearance light yellow powder or granular
Melting Range 138-141 °C
Flash Point 229 °C
Specific Gravity 0.37g/cm3 at 20 ºC
Stability stable under ordinary conditions

Item Specification
Appearance light yellow powder or granular
Purity 99.0% min
Melting point 138.0ºC min
Volatiles 0.50% max
Residue on ignition 0.05% max
Transmittance 460nm  97.0% min
Transmittance 500nm 98.0% min
Recommended application and dosage:
1. Unsaturated Polyester: 0.2-0.5wt% based on polymer weight
2. PVC:
Rigid PVC: 0.2-0.5wt% based on polymer weight
Plasticized PVC: 0.1-0.3wt% based on polymer weight
3. Polyurethane: 0.2-1.0wt% based on polymer weight
4. Polyamide: 0.2-0.5wt% based on polymer weight
 
Packing and Storage
Packing In 15kgs net kraft paper bag, 6mts onto 20 pallet in 20Fcl, or in 20kgs drum
Storage Keep tightly closed and store in cool and dry place

Safety Information
Non-hazardous for air, sea and road freight.