UV ABSORBER UV234 CAS NO.70321-86-7

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Product
UV ABSORBER UV234 CAS NO.70321-86-7
Posting date : Dec 03, 2020
Membership
Free Member Scince Mar 25, 2019
FOB Price
NEGOTIABLE
Min. Order Quantity
1KG
Supply Abillity
50MT/MONTH
Port
SHANGHAI
Payment Terms
T/T
Package
25KG/BAG
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Product Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
HOSORB
Model Number
UV 234
HS-CODE
2933-99
Package & Delivery Lead Time
Package
25KG/BAG
Delivery Lead Time
5 DAYS
Detailed Description

Chemical name: 2-[2'-hydroxy-3',5'-bis(-dimethyl benzyl)-phenyl]benzotriazole

CAS No.:70321-86-7                           

Molecular formula: C30H29N3O  

Molecular weight:  447.6                        

Molecular structure 

 


Specification                                                                     

Appearance: Light yellow powder

Purity, %: ≥ 99

Melting point,℃:139.5-141

Volatile matter, %: ≤ 0.5 

Ash, %: ≤ 0.05

Transmittance   450nm≥97%     

500nm≥98%


Solubility (20℃, g/100ml solvent)                                                   

Acetone:2       n-Hexane: 0.6     Benzene: 10     Ethyl acetate: 4      Toluene: 20 

Chloroform: 35   Methylene chloride: 34   Ethanol: 0.3   Cyclohexane: 5   MEK: 13

Methanol<0.1    Water<0.01


Application                                                                       

UV ABSORBER HOSORB-234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class. It has low volatility at high temperatures and high resistance to thermal degradation for compounding and molding applications. It is highly effective for polymers processed at high temperature such as polycarbonate, polyester, polyacetal, PPO, polyamide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers etc.. It is also useful in the light stabilization of powder coatings and solvent-based coatings. 



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