High Quality UV Absorber Bumetrizole CAS 3896-11-5 UV 326

• Customization: Available
• Appearance: Light Yellow Powder or Granular
• Purity: 99.0% Min
• Model NO.: 99%
• Melting Poin: 138.0 Temprature
• Volatiles: 0.50% Max
• Residue on Ignition: 0.05% Max
• Transmittance 460nm: 97.0% Min
• Transport Package: in 15kgs Net Kraft Paper Bag
• Specification: 25kg/pp bag
• Trademark: SWE
• Origin: China
• Production Capacity: 20mts/Month

Product Description

Product Description

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

Product Parameters

 

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

Application

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
 

Packaging & Shipping

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

Safety Information

Non-hazardous for air, sea and road freight.