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Triphenyl phosphate CAS 115-86-6 (TPHP) is the chemical compound with the formula OP(OC6H5)3. This colourless solid is the ester (triester) of phosphoric acid and phenol. It is used as a plasticizer and a fire retardant in a wide variety of settings and products.
Properties
Melting point 48-50 C(lit.)Boiling point 370 C
Density 1.2055
Refractive index 1.563
Flash point 435 F
Storage temp. 2-8C
Water Solubility insoluble
Specification
Appearance: White flaky crystal
Assay: 99%;Acid value (mgKOH/g): 0.10%
Free Phenol: 0.10%
Freezing Point: 47℃
Chroma (APHA): 60
Moisture: 0.10%
Density(50C, g/cm3): 1.185-1.202
Application
Triphenyl phosphate has been used widely as a flame retardant and plasticizer.It has been used as a flame retardant for a variety of materials, including electronic equipment, PVC, hydraulic fluids, glues, and casting resins.
Its mechanism of action as a flame retardant is as follows: first, during thermal decomposition, phosphoric acid is formed. This reacts to form pyrophosphoric acid, which, when in its condensed phase, acts to block heat transfer. One of the most effective flame retardants for certain polymers, TPhP is only active as an additive flame retardant in its gas phase.Phase out of PBDEs may have increased the use of TPhP in recent years.
TPhP is also used as a plasticizer in lacquers, varnishes, and hydraulic fluids. Nail polish has received particular interest as a source of exposure to TPhP.
Packing
25kg/bag, 20MT per 20GP containerStorage
Placed in sealed container and kept in a cool and dry place.Avoid strong vibration, insolation, high temperature, smoke and fire.
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