Tris(nonylphenyl) phosphite
Tris(nonylphenyl) phosphite
  • CAS No.:26523-78-4
Other grades of this product :
Tris(nonylphenyl) phosphite Basic information
Product Name:Tris(nonylphenyl) phosphite
Synonyms:TRIS(NONYLPHENYL) PHOSPHITE;TRIS(NONYLPHENYL) PHOSPHITE ESTER;nonyl-phenophosphite(3:1);Phenol,nonyl-,phosphite(3:1);IRGAFOS TNPP;tris(2-nonylphenyl) phosphite;Tri(nonylatedphenyl)phosphite;Tris(nonylphenyl)phosphit
CAS:26523-78-4
MF:C45H69O3P
MW:689
EINECS:247-759-6
Product Categories:Polymer Additives;Polymer Science;Stabilizers
Mol File:26523-78-4.mol
Tris(nonylphenyl) phosphite Chemical Properties
Boiling point >360 °C(lit.)
density 0.99 g/mL at 25 °C(lit.)
refractive index n20/D 1.528(lit.)
Fp >230 °F
Specific Gravity0.979~0.9870.990
Sensitive Moisture Sensitive
InChIKeyWGKLOLBTFWFKOD-UHFFFAOYSA-N
CAS DataBase Reference26523-78-4(CAS DataBase Reference)
EPA Substance Registry SystemPhenol, nonyl-, phosphite (3:1) (26523-78-4)
Safety Information
Hazard Codes Xi,N
Risk Statements 43-50/53
Safety Statements 36/37-61
RIDADR UN3278
WGK Germany 2
RTECS RB2451000
TSCA Yes
HazardClass 6.1
PackingGroup III
Hazardous Substances Data26523-78-4(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
Tris(nonylphenyl) phosphite Usage And Synthesis
Chemical PropertiesLight yellow transparent viscous liquid
UsesAlkylphenols such as 4-nonylphenol (NP) and octylphenol (OP) can be generated by oxidation and subsequent hydrolysis of tris(nonylphenyl)phosphite (TNPP) used as additive in plastics. TNPP is used as a heat stabiliser in various polymeric food packaging materials such as styrenes, vinyl polymers, and rubber polyolefins. TNPP is also used to maintain the colour stability, processing stability, and performance integrity of the polymers. NP is used as a starting material in the manufacture of TNPP and so it may be present as an impurity as well as a hydrolysis product. Alkylphenols in food may also be occurred due to degradation of the most widely used non-ionic surfactants polyethoxylated nonylphenols (APEOs) which are cleaning agents in bottled manufacturing.
UsesTNPP in combination with irganox is used to protect polyamide 6 (PA6) from oxidative degradation during the preparation of flame retardant nanocomposites. TNPP can be used as a stabilizer that prevents the molecular weight reduction and increases the tensile strength of the composite. It can also be used as a chain extender to improve the polymeric viscosity during the melt-blending of poly(hydroxybutyrate-co-hydroxyvalerate) based clay nanocomposites which find potential application as packaging materials.
General DescriptionTris(nonylphenyl) phosphite (TNPP) is an antioxidant that is majorly used as a stabilizer to improve the performance of polyethylene by decomposing the hydroperoxides. It can also be used to enhance the thermal stability by extending the polymeric chains.
Tris(nonylphenyl) phosphite Preparation Products And Raw materials

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