Thuv-328 Uv-328 Cas No 25973-55-1 Ultraviolet Absorber Benzotriazole Uv Absorber
Basic Spec
English name: 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol
English synonym: 2-(3',5'-di-t-aMyl-2'-hydroxyphenyl) benzotriazole; 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)benzotriazole; HRsorb-328;2- (2-Hydroxy-3,5-dipenryl-phenyl) benzotriazole; UV-328; 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-amylphenol; UV ABSORBER UV-328; 2-( 2H-benzotriaziol-2-yl)-4,6-Di-Tert-Pentylphenol
CAS No.: 25973-55-1
Molecular formula: C22H29N3O
Molecular weight: 351.49
EINECS number: 247-384-8
Related Categories: Light Stabilizers; Polymeric Additives; Industrial/Fine Chemicals; Polymer Additives; Polymer Science; Stabilizers; Triazoles; Compounds;
Chemical Structure
Physical Specification
Name: UV-328 Ultraviolet absorber
CAS: 25973-55-1
Light yellow powder
Assay: 99.0%min
Capacity: 500 ton /month
Ultraviolet absorber UV-328
Chemical name:2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole
Molecular formula:C22H29N3O
CAS No: 25973-55-1
Specification:
| Items | Specifications |
| Appearance | Slightly yellowish granule |
| Volatile | ≤0.3% |
| Ash | ≤0.05% |
| Light transmittance 440nm | ≥96% |
| Light transmittance 500nm | ≥97% |
| Assay | ≥95% |
Introduction About UV-328
As a UV absorber, it is soluble in organic solvents such as benzene, toluene, styrene, cyclohexane, methyl methacrylate, ethyl acetate, and ketone. This product is mainly used in polyolefin, polystyrene, and polyvinyl chloride. Polyurethane, polyester and other products. It is an excellent variety of benzotriazole-based UV absorbers. The maximum absorption wavelength is 345nm. The general dosage is about 0.1%.
Features of UV-328
1. This product is a high-efficiency UV absorber, which can effectively absorb 270-340 nm UV light;
2, light stability can be similar to UV-326 and UV-327, but this product has good compatibility with resin, low thermal evaporation and high washing resistance;
Application Of UV-328
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his product is suitable for polymers such as polyene hydroxy (especially polyethylene), polyester, styrene polymer, polyamide, polymethyl methyl methacrylate, polycarbonate, elastomer and so on.
Packing & Storage
20KG/Drum/bag, Avoid yang, light, moisture, and avoid light stabilizers containing sulfur or halogens. It needs to be stored and stored under sealed dry and dark conditions.
Contact Information
| Tel | 0086 134 35409275 |
| Fax | 0086 757 84888673 |
| Mobile | 0086 13670617610 |
| E-mail | frank@jasontechcn.com |
| Skype | frank_shuai |
| WhatsApp/Viber | +86-13435409275 |
FAQ
1. Are you a factory or tarding company?
Our company concentrates on on the production, sales and service for plastic and coating additives, fine chemicals and intermediates.
2. Where dose your company locate?
We locate in Heze, Shandong province of China, also have sales rep. in Foshan
3. Can you provide samples for quality checking before placing an order?
Samples are avaliable upon request, but the shipping cost should be paid by customer.
4. How to get the price list?
Please inqire us by alibaba/email.
5. What's your payment term?
TT/Payoneer/Paypal/West Union
Payment Terms
100% TT Before Shipment
