UV Absorber 329 (5411) manufacturer CAS:3147-75-9

Product Name: UV Absorber 329 (5411)

Other Name: UV Absorber UV-329;2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole

CAS No: 3147-75-9

MF: C20H25N3O

MW: 323.43200

Density: 1.1g/cm3

Boiling point: 471.8ºC at 760 mmHg

Melting point: 106-108 °C(lit.)

Flash point: 239.2ºC

Refractive index: 1.584

UN Number: UN2574

UN Proper Shipping Name: TRICRESYL PHOSPHATE with more than 3% ortho isomer

Transport hazard class: 6.1

Packing group: II

Specification

Appearance: White powder

Assay: ≥99%

Ash: ≤0.10%

Transmittance: 440nm>97%; 500nm>98%

Application

UV Absorber 329 (5411) is an excellent anti-aging agent with excellent performance.

UV Absorber 329 (5411) can absorb 270-340 nm UV light and is widely used in PE, PVC, PP, PS, PC, polypropylene fiber, ABS resin, epoxy resin, resin fiber and ethylene vinyl acetate. Ester and other aspects.

UV Absorber 329 (5411) can be used in packaging materials such as plastic containers and food packaging boxes to provide them with good light stability.

Dosage: 0.1-0.5% for thin products and 0.05-0.2% for thick products.

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-329 is non-toxic, non-flammable, non-explosive, non-corrosive, and has good storage stability.

TEST	UNIT	SPECIFICATION
APPEARANCE		WHITE TO OFF-WHITE POWDER
ASSAY	%	99.00MIN
VOLATILES	%	0.30MAX
ASH	%	0.10MAX
MELTING POINT	℃	103.00-105.30
TRANSMITTANCE
440nm	%	97.00MIN
500nm	%	98.00MIN

TGA:220℃（5%） 246℃（10%）286℃（50%）

Our company is a professional supplier of functional material additives. Our products include antioxidants, ultraviolet absorbers, light stabilizers, photoinitiators, heat stabilizers, nucleating agents, flame retardants, polyurethane chain extenders, nano light absorbing materials, antibacterial materials, functional masterbatches, colorants etc. After years of steadfast industry accumulation and technological innovation, a relatively complete additive industry chain has been formed in the rubber and plastic industry, ink industry, coating industry, textile printing and dyeing industry, functional resin and other industries. Significant achievements have been made in the field of additives.