Supply UV Absorber 531 CAS 1843-05-6 Benzophenone-12 / UV-531

• Customization: Available
• CAS No.: 1843-05-6
• Formula: C21h26o3
• Model NO.: UV 531
• Appearance: Powder
• Usage: Electronics Chemicals
• Color: Yellow
• Purity: 99.0% Min
• Melting Point: 47.0 - 49.0 °c Min
• Loss on Drying: 0.5% Max
• Residue on Ignition: 0.1% Max
• Transmittance 450nm: 90.0% Min
• Transmittance 500nm: 95.0% Min
• Transport Package: in 20 or 25kgs Net Carton or Cardboard Drum
• Specification: 99% min
• Trademark: SWE
• Origin: China
• Production Capacity: 20mts/Month

Product Description

Product Description

 

UV 531 is an ultraviolet absorber with good performance, capable of absorbing the UV radiation of 240-340 nm wavelength with the characteristics of light color, nontoxic, good compatibility, small mobility, easy processing etc.

Product Name       UV 531

Identification
Synonyms:  2-hydroxy-4-(octyloxy)benzophenone; BP12; Octabenzone
Molecular Formula :C₂₁H₂₆O₃
Molecular Weight   :326.43
CAS Number   :  1843-05-6
EINECS/ELINCS  : 217-421-2

Properties
Appearance :     light yellow crystalline powder
Melting Range:  47-49 °C
Solubility :    soluble in organic solvents
Stability   :    stable under ordinary conditions
 

Item	Specification
Appearance	light yellow crystalline powder or flakes
Purity	99.0% min
Melting point	47.0 - 49.0 °C min
Loss on drying	0.5% max
Residue on ignition	0.1% max
Transmittance 450nm	90.0% min
Transmittance 500nm	95.0% min

Application:
   It can protect the polymer to its maximum extent, helps to reduce the color. It can also delay the yellowing and obstacle the loss of its physical function. It is widely applied to PE, PVC, PP, PS, PC organic glass, polypropylene fiber, ethylene-vinyl acetate etc. Moreover, it has very good light-stability effect on drying phenol aldehyde, varnish of alcohol, polyurethane, acrylate and etc.

Usage: 0.1%-0.5% based on polymers weight
 
Packing and Storage
Packing    In 20 or 25kgs net carton or cardboard drum
Storage    Keep tightly closed and store in cool and dry place
 
Safety Information
UN 3077 9/PG 3