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Triphenyl phosphate

Triphenyl phosphate

CAS Number: 115-86-6

Molecular Formula: C18H15O4P

Organo-Phosphorus Reagents & LigandsPhosphate CompoundsPetroleum-Derived Wax & Functional AdditivesTPHP: Phenolic and Epoxy ResinsTPHP: Additive Lithium-ion Battery Electrolytes

About Triphenyl phosphate

The phase-out of polybrominated diphenyl ethers (PBDEs) in US electronics and residential applications created sustained demand for halogen-free alternatives, and triphenyl phosphate (TPP, CAS 115-86-6). It is the primary non-halogenated flame retardants now specified across PC/ABS engineering plastic blends. Triphenyl...

Synonyms

  • Phenyl phosphate
  • Sumilizer TPP
  • Reofos TPP
  • Wako TPP
  • tris(phenyl) phosphate
View all

Triphenyl phosphate Specifications

CAS Number
115-86-6
Molecular Formula
C18H15O4P
Molecular Weight
326.28
IUPAC Name
triphenyl phosphate
Canonical SMILES
C1=CC=C(C=C1)OP(=O)(OC2=CC=CC=C2)OC3=CC=CC=C3
InChI Key
XZZNDPSIHUTMOC-UHFFFAOYSA-N
InChI
1S/C18H15O4P/c19-23(20-16-10-4-1-5-11-16,21-17-12-6-2-7-13-17)22-18-14-8-3-9-15-18/h1-15H
EINECS Number
204-112-2
MDL Number
MFCD00003031
HSN No
29199090
Molecular Weight
326.28
Melting Point (Experimental)
49-50 °C
Boiling Point (Experimental)
370°C
Density (Experimental)
1.2055 g/cm³ Temp: 50°C
Phosphorus content
9.5
Hazard Classes and Categories
Aquatic Acute 1 (83.4%), Aquatic Chronic 1 (86%), Aquatic Chronic 2 (18.7%)
Precautionary Statement Codes
P273, P391, and P501

Flame Retardants: Non-Halogenated

Gas phase by releasing phosphorus radicals that quench flame-propagating reactions. Preferred-PC/ABS alloys for electronics housings and automotive parts to meet UL-94 fire safety standards without the use of brominated compounds

Polymer Processing: High-Performance Plasticizer

Plasticizer for cellulose acetate (photographic films) and nitrocellulose. Increases the flexibility and durability of polymers while maintaining transparency and providing inherent fire resistance

Industrial Fluids: Lubricant Additive

Employed as an extreme pressure (EP) additive and anti-wear agent in synthetic lubricants and hydraulic fluids. Organophosphorus structure provides a protective molecular film on metal surfaces under high-stress conditions

Detail 1

Stable under standard temperatures and pressures

Detail 2

Hydrolyzes very slowly in the presence of strong bases or moisture at elevated temperatures

Detail 3

Store in a cool, dry, well-ventilated warehouse (15°C to 30°C)

Detail 4

Keep containers tightly closed to prevent moisture absorption

COA
Download
  1. Phenyl phosphate
  2. Sumilizer TPP
  3. Reofos TPP
  4. Wako TPP
  5. tris(phenyl) phosphate

Triphenyl phosphate FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

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California Prop 65*

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