Antioxidant BX AO TNPP

Introduction

Antioxidant BX AO TNPP chemical name Trinonylphenol phosphite, TNPP is an aryl phosphite antioxidant that can be used as a non-staining antioxidant in polystyrene, styrene-butadiene rubber, epoxy resins, unsaturated polyesters, SBS, natural rubber, butadiene rubber, ABS, etc. Its antioxidant efficacy is greatly improved when used in combination with phenolic antioxidants. It has high thermo-oxidative stabilization efficiency and can inhibit gel formation and viscosity increase.

Recommended addition: 0.3-2.0%

Properties

Molecular Formula: C45H69O3P
Molecular Weight: 689

CAS No.: 26523-78-4

Appearance: Pale yellow liquid

Refractive Index (25°C): 1.5255-1.5280

Acid Value (mgKOH/g): ≤0.10

Color Number (APHA): ≤75

Specific Gravity (25°C): 0.980-0.994

Phosphorus Content (%): 4.1-4.5

Chemical Name:

Trinonylphenol phosphite

Synonyms:

Weston TNPP

Handling and Safety:

Handling: Follow good industrial practices and avoid unnecessary human contact. Store the product in a cool, dry, and well-ventilated place to prevent moisture absorption; keep away from fire, heat sources, strong vaporizing agents, and reducing agents. Recommended use within 12 months.

Package:

25 or 200kgs per drum.