Phosphate Esters
| Formula: | General formula (RO)₃PO or (RO)₂P(O)OH (varies by ester type) |
| CAS Number: | Representative – 126-73-8 (Tributyl Phosphate), 78-40-0 (Triethyl Phosphate), 115-86-6 (Triphenyl Phosphate) |
| EC Number (EINECS): | Varies depending on specific ester (e.g., 204-118-5 for Tributyl Phosphate) |
| HS Code: | 29199000 |
| UN Number: | Varies (e.g., UN 3082 for environmentally hazardous liquids, n.o.s.) |
| IUPAC Name: | Alkyl/Aryl Phosphate Ester (specific to product) |
| Also Known As: | Organic Phosphates; Phosphoric Acid Esters |
| Molecular Weight, g/mol: | Varies (e.g., TBP = 266.32 g/mol) |
Typical Specifications
| Appearance: | Clear, colorless to pale yellow liquid |
| Odor: | Mild characteristic odor |
| Boiling Point, °C: | 215–290 (depending on ester type) |
| Flash Point, °C: | 150–220 |
| Solubility: | Slightly soluble in water; miscible with organics |
| Purity, %: | ≥99 |
| Grades Available: | Industrial, Technical, Flame Retardant Grade |
| Packaging: | 200kg drums, 1000kg IBCs, bulk ISO tanks |
Applications / Uses
Primary Applications
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Plasticizers for PVC, rubber, and elastomers
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Flame retardants in textiles, electronics, and polymers
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Anti-wear & anti-foam additives in lubricants and hydraulic fluids
Secondary Applications
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Solvents in extraction processes (e.g., nuclear reprocessing with TBP)
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Stabilizers in resins and coatings
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Used in surfactants and detergents
End Industries Served: Plastics, Rubber, Textiles, Electronics, Lubricants, Coatings, Oil & Gas, Specialty Chemicals
Safety & Handling Information
Hazard Class (GHS): Harmful / Irritant / Environmentally hazardous (depending on ester type)
Hazard Statements (H-Codes):
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H302: Harmful if swallowed
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H315: Causes skin irritation
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H319: Causes serious eye irritation
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H411: Toxic to aquatic life with long lasting effects
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P273: Avoid release to the environment
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P301 + P312: IF SWALLOWED – call a doctor if unwell
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses
Storage Conditions
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Store in cool, dry, ventilated area
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Keep away from heat and open flames
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Avoid contact with strong oxidizing agents
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Protect from moisture and prolonged exposure to sunlight
Transport Information
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ADR/RID: Class 9, UN 3082, PG III (for environmentally hazardous liquid, n.o.s.)
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IMDG: Class 9, UN 3082, Marine Pollutant
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IATA: Class 9, UN 3082