UV 531 Light Stabilizer 531 CAS: 1843-05-6

• Customization: Available
• CAS No.: 1843-05-6
• Formula: C21h26o3
• Model NO.: UV 531
• Certification: REACH
• Environmental Protection: No
• Color: Yellow
• Kind: UV Absorber
• Appearance: Powder
• Product Name: UV 531
• Assay: 99%
• Transport Package: in 20 or 25kgs Net Carton or Cardboard Drum
• Specification: industry grade
• Trademark: SWC
• Origin: P. R. China
• Production Capacity: 100mts Per Month

Product Description

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
Structure


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

Specification

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
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. 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
Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.
 

Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; 

For those high value products, you just need to freight and certain product cost. When we both cooperate for 

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you. 

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) 

or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on 

where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement. 

Q5: How can you guarantee the goods you offer is qualified? 
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide 

for you all are qualified. We will have goods tested and provide COA before delivery for sure.