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Primary Antioxidant - Sulfur Based

PowerNox™ 4150

4,4'-Thiobis(6-tert-butyl-m-cresol).
Synonym: 6,6’-di-tert-butyl-4,4’-thiodi-m-cresol
Chemical Structure
Introduction / Features
PowerNox™ 4150 is a primary and Thio’s secondary antioxidant for organic polymers. It is also antioxidant for Polyolefins, Polystyrenes, Latex and the raw material of metal deactivator for phosphite.
Physical Properties
Chemical Name: 4,4'-Thiobis(6-tert-butyl-m-cresol)
CAS No.: 96-69-5
EINECS No.: 202-525-2
Formula: C22H30O2S
Molecular Weight: 358
Melting Point(°C): 160-164
Volatile Loss(%): Max.0.5
Color of Solution 425nm(%): Min.93
Color of Solution 500nm(%): Min.95
Appearance: White to Off-white Powder
Ash(%): Max.0.1
Min. Purity: 98%

Solubility (20°C) % w/w
Acetone: 20
Carbon tetrachloride: 0.5
Diethyl ether: 0.5
Ethanol: 47
n-Hexane: 0.5~1
Methanol: 79
Water: <0.01

Applications
PowerNox™ 4150 is especially used as an antioxidant in HDPE, LDPE for water and gas pipes and high voltage cables.
PowerNox™ 4150 has high resistance to thermo-oxidative degradation and excellent compatibility with peroxide and shows good synergism with carbon black PowerNox™ 4150 is also used as a polymerization and processing stabilizer for PP, ABS, PVC, EPDM elastomers and Polybutadiene. PowerNox™ 4150 is effective as an anti skinning agent for hot melt adhesives, an antiscorching agent for PU during condensation of TDI on Polyesters and heat stabilizer for lubricants.
PowerNox™ 4150 is an antioxidant for PVC stabilizer.
Packings
PowerNox™ 4150 is supplied in 25Kg Carton Box, 50Kg Fiber Drum.
Technical Library
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