Benzotriazole UV Absorber UV-329 CAS 3147-75-9

• CAS No.: 3147-75-9
• Formula: C20h25n3o
• EINECS: 221-573-5
• Certification: REACH
• Environmental Protection: No
• Color: White
• Model NO.: 99%
• Kind: Absorbers
• Appearance: Powder
• Purity: 98.0% Min
• Melting Point: 101-106°c Min
• Loss on Drying: 0.50% Max
• Ash: 0.05% Max
• Transmittance 440nm: 97.0% Min
• Transmittance 500nm: 98.0% Min
• Transport Package: in 20kgs Net Carton or 25kg Cardboard Drum
• Specification: 99% min
• Trademark: SWE
• Origin: China
• Production Capacity: 20mts/Month

Product Description

UV-329 is a benzotriazole type UV absorber. Characterized by its strong , broad range UV absorption property, UV-329 brings excellent photo stability to polymers against UV light exposurein many ways i.e. Retarding color yellowing, preventing embrittlement, maintaining of mechanical properties etc.

Product Name       UV 329 (UV 5411)
 

Identification
Synonyms  :              2-(2'-hydroxy-5'-tert-octyllphenyl)benzotriazole; Octrizole
Molecular Formula : C₂₀H₂₅N₃O
Molecular Weight :   323.43
CAS Number        :   3147-75-9
EINECS/ELINCS :      221-573-5

Properties
Appearance     :       white powder
Melting Range  :      101-106 °C
Solubility         :        insoluble in water; soluble in benzene, styrene, ethye acetate, slightly soluble in ethyl alcohol
Stability  :                 stable under ordinary conditions

Specification
 

Item	Specification
Appearance	white to light yellowish powder or granula
Purity	98.0% min
Melting point	101-106°C min
Loss on drying	0.50% max
Ash	0.05% max
Transmittance 440nm	97.0% min
Transmittance 500nm	98.0% min

Application
UV-329 is a benzotriazole type UV absorber. Characterized by its strong , broad range UV absorption property, UV-329 brings excellent photo stability to polymers against UV light exposurein many ways i.e. Retarding color yellowing, preventing embrittlement, maintaining of mechanical properties etc.
Good solubility for polymer and little volatility. Mainly used for polyetyrene, poly (methyl methacrylate), polyester and ABS resins etc.

Packing and Storage
Packing    In 20kgs net carton or 25kg cardboard drum
Storage    Keep tightly closed and store in cool and dry place
 
Safety Information
Non-hazardous for air, sea and road freight.

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.