Chemicals

2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol

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Product Name: 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol

Other Name: Ultraviolet absorbent UV-328

CAS No: 25973-55-1

MF: C22H29N3O

MW: 351.48500

Density: 1.08g/cm3

Boiling point: 469.1ºC at 760 mmHg

Melting point: 80-83°C

Flash point: 229ºC

Refractive index: 1.575

UN Number: Not dangerous goods.

UN Proper Shipping Name: Not dangerous goods.

Transport hazard class: Not dangerous goods.

Packing group: Not dangerous goods.

Specification

Appearance: Light yellow powder or cylindrical particles

Assay: ≥99%

Ash: ≤0.10%

Volatile matter: ≤0.50%

Transmittance: 460nm≥96%; 500nm≥97%

Application

This product is a high-efficiency UV absorber, which can effectively absorb 270-340 nm UV light, the light stability is similar to UV-326 and UV-327, but the product has good compatibility with resin, low thermal evaporation and high washing resistance.

This product is suitable for polyolefin (especially polyethylene), polyester, styrenic polymer, polyamide, polymethyl methacrylate, polycarbonate, elastomer and other polymers.

Package: Packed in cardboard drum lined with plastic bag, net weight 25kg/drum, can also be designed according to customer requirements.

Storage: UV-absorbing agent UV-328 is non-toxic, non-flammable, non-explosive, non-corrosive, and has good storage stability.

2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol

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