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HomeProduct name listTris(nonylphenyl) phosphite

Tris(nonylphenyl) phosphite

Synonym(s):Tri(monononylphenyl) phosphite

  • CAS NO.:26523-78-4
  • Empirical Formula: C45H69O3P
  • Molecular Weight: 689
  • MDL number: MFCD00015301
  • EINECS: 247-759-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-11-09 20:36:52
Tris(nonylphenyl) phosphite Structural

What is Tris(nonylphenyl) phosphite?

Chemical properties

Light yellow transparent viscous liquid

The Uses of Tris(nonylphenyl) phosphite

Alkylphenols 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.

The Uses of Tris(nonylphenyl) phosphite

TNPP 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 Description

Tris(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.

Properties of Tris(nonylphenyl) phosphite

Boiling point: >360 °C(lit.)
Density  0.99 g/mL at 25 °C(lit.)
refractive index  n20/D 1.528(lit.)
Flash point: >230 °F
solubility  Benzene (Slightly), Chloroform (Slightly), Methanol (Slightly)
form  Thick Oil
color  Colourless
Specific Gravity 0.979~0.9870.990
Odor mild odor
Sensitive  Moisture Sensitive
CAS DataBase Reference 26523-78-4(CAS DataBase Reference)
EPA Substance Registry System Phenol, nonyl-, phosphite (3:1) (26523-78-4)

Safety information for Tris(nonylphenyl) phosphite

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H318:Serious eye damage/eye irritation
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P201:Obtain special instructions before use.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313:IF exposed or concerned: Get medical advice/attention.

Computed Descriptors for Tris(nonylphenyl) phosphite

InChIKey WGKLOLBTFWFKOD-UHFFFAOYSA-N

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