General Product Data
Product Name Tricresyl Phosphate (TCP)
CAS Number 1330-78-5
EINECS‑EC 215-548-8
Synonyms Tritolyl phosphate; Phosphoric acid tricresyl ester, mixed isomers (o-,m-,p-cresyl)Molecular Formula C21H21O4P
Molecular Weight 368.36 g/mol
Chemical Family Aromatic organophosphate ester plasticizer / flame retardant
Available Grade Industrial General Grade; Low-Free-Phenol Premium Grade
Physical & Chemical Characteristics
Physical form Colorless to pale-yellow clear oily liquid
Odour Mild faint aromatic odour
Solidification point ≤-28 °CBoiling point 265 °C @10 mmHg
Flash Point (COC) ≥225 °C
Density (20 °C) 1.160-1.180 g/cm³Refractive Index n₂₀/D 1.554-1.558
Viscosity (20 °C) 65‑75 mPa·s
Solubility in water Practically insoluble
Solubility Miscible with ethanol, benzene, ether, chlorinated solvents; insoluble in glycerin
Processing hint Avoid strong alkaline condition (risk of hydrolysis). Keep away from strong oxidizing agents. Low volatility under processing temperature.
Quality specification
| Test Parameter | Industrial General Grade | Low‑Free‑Phenol Premium Grade | Test Method |
|---|---|---|---|
| Assay (TCP, GC) | ≥98.0 % | ≥99.0 % | Capillary GC |
| Phosphorus Content | ≥8.3 % | ≥8.4 % | Titration |
| Color (Pt‑Co / APHA) | ≤75 | ≤50 | Colorimetry |
| Specific Gravity 20℃ | 1.160‑1.180 | 1.160‑1.180 | Pycnometer |
| Acid Value (mg KOH/g) | ≤0.10 | ≤0.05 | Titration |
| Water Content | ≤0.10 % | ≤0.05 % | Karl‑Fischer Titration |
| Free Phenol | ≤500 ppm | ≤200 ppm | GC‑MS |
| Loss on Heating (2h/120℃) | ≤0.3 % | ≤0.2 % | Gravimetric |
Main Functions & Recommended Applications
Polymer Industry: Flame‑retardant plasticizer for PVC, nitrile rubber, synthetic rubber; improves abrasion resistance, anti‑aging and electrical performance for wire‑cable, conveyor belt, vinyl sheet.
Coating & Leather: Plasticizer for nitrocellulose coating; softening additive for leather finishing.
Special Fluid: High‑temperature resistant hydraulic fluid base stock, extreme‑pressure lubricant additive.
Other: Anti‑wear additive for lubricating oil, solvent for resin compounding.Important note:
TCP is organophosphate material; ortho‑cresyl phosphate is toxic isomer, our product strictly controls ortho‑isomer level. Hydrolysis will occur under strong alkali or high‑temperature wet environment, generating cresol and reducing product performance. End‑user shall validate suitability for own formulation and final application. Refer to SDS for full safety & hazard guidance.
Logistics & Storage Information
Packaging options: 200 kg steel drum; or as per request.
Lead‑time: Samples: 7‑15 working days against deposit.
Storage condition: Keep container tightly closed. Store in cool, dry, well‑ventilated warehouse, keep away from heat source, alkali and oxidizing agents.
Shelf-life: 24 months under original sealed storage.
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