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Description and features

In most polymers, Rostabil TNF (Trisnonylphenol phosphite) serves as a cost-effective, high-purity stabilizer that enhances color and processing stability during recovery, drying, compounding, processing, and end use. When combined with other stabilizers, such as hindered phenols, it realizes synergistic effects. Manufacturers can add TNF alone or in combination with monomers and/or antioxidant emulsions during recovery or compounding. TNF excels at preventing gel formation during polymerization, finishing, storage, and factory processing.

This versatile phosphite stabilizer proves useful in a wide range of polymers, including polyethylene, polypropylene, polystyrene, HDPE, LLDPE, SBR, ABS, PVC, and others. Additionally, TNPP functions effectively as a stabilizer for various elastomers such as SBR, NBR, and SIS. It is particularly effective in light-colored solution and emulsion polymerized elastomers. Furthermore, the FDA sanctions the use of TNF for food contact applications under 21 CFR 178.2010, which covers antioxidants and/or stabilizers for polymers. Rostabil TNF also receives clearance for use as an antioxidant in many polymers for food contact applications in Japan, Europe, Canada, and numerous other countries.

Availability

Europe: Rostabil TNF (Trisnonylphenol phosphite) is in stock in our local warehouses our lead time is about one week if delivered in 200 KG drums.

We can also serve Canada, South America, South Africa, and other markets. Please contact our sales department for more details.

This substance (CAS: 26523-78-4) has been registered (FULL) under
REACH (EC) 1907/2006.

Product Identification

CAS number 26523-78-4
EC number 247-759-6
HS code 2920 29 00
IUPAC Name tris(4-nonylphenyl, branched) phosphite

Specification

AppearanceSligtly coloured homogeneous liquid
Acid value≤0.3 (mg KOH/gm)
Colour ≤60 (Hazen)
Free nonylphenol ≤3.0 %
Phosphorus content 4.30 %

Packaging

Available packaging: 200KG steel drums and 1.000 KG IBC.
Special packaging is available on request.

Storage

Store Trisnonylphenol phosphite in a cool, dry and well-ventilated area and in line with legal requirements.
Keep TPP away from heat sources and oxidizing agents.

MSDS

A Material Safety Data Sheet (MSDS) is available for Rostabil TNF and all other products supplied by Vesta Chemicals BV.

An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Molecular and structural information

Molecular formula C45H69O3P
Molecular weight 660.96 g/mol
InChi key QEWOSWNAIXGGLD-UHFFFAOYSA-N
Structural formula 26523-78-4

Physicochemical information

Boiling point >300 °C @ 102 kPa
Decomposition temperature 322 °C under nitrogen
Flash point 207 ºC @ 1 atm
Melting point +/- 6 ºC
Partition coefficient (log Pow) 21.60 ± 0.60
Refractive index 1.527 – 1.533 @ 25 °C
Relative density 0,965 – 0,990 g/m3 @ 25 °C
Solubility in water Insoluble (< 0.1 mg/l)
Specific gravity 0.975 – 0.998/m3 (25 °C/15 °C)
Vapour pressure 0.000000000005 Pa