Organophosphate Esters
| Formula: | Varies by compound (general formula: (RO)₃PO) |
| CAS Number: | Varies (e.g., Triphenyl phosphate – 115-86-6) |
| EC Number (EINECS): | Varies (e.g., Tris(2-chloroethyl) phosphate – 204-118-5) |
| HS Code: | 29199090 (general classification; varies per ester) |
| UN Number: | Not universally assigned (depends on compound) |
| IUPAC Name: | Organophosphate Triesters (general class) |
| Also Known As: | Phosphate Esters; Phosphoric Acid Esters |
| Molecular Weight, g/mol: | Typically 250–400 (depending on ester) |
Typical Specifications
| Appearance: | Colorless to pale yellow liquid |
| Odor: | Mild, characteristic |
| Melting Point, °C: | -20 to +50 (compound dependent) |
| Boiling Point, °C: | 250–350 |
| Density, g/cm³ (at 20°C): | 1.05–1.30 |
| Flash Point, °C: | 220–300 (depending on ester) |
| Solubility: | Soluble in organic solvents; slightly soluble in water |
| Purity, %: | ≥99 (typical industrial grades) |
| Grades Available: | Industrial, Technical, Flame Retardant, Plasticizer |
| Packaging: | 200kg drums, 1000kg IBCs, bulk ISO tanks |
Applications / Uses
Primary Applications
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Widely used as flame retardants in plastics, textiles, and foams
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Plasticizers in PVC, rubber, and polymer formulations
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Hydraulic fluids, lubricants, and metal-working fluids
Secondary Applications
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Additives in paints, varnishes, and coatings
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Intermediate for specialty chemicals
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Anti-foaming agents in industrial processes
End Industries Served: Plastics, Textiles, Automotive, Electronics, Construction, Coatings, Industrial Fluids
Safety & Handling Information
Hazard Class (GHS): Flammable liquid (varies by ester), Skin/Eye Irritant, Possible Reproductive Toxicant (some esters)
Hazard Statements (H-Codes):
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H226: Flammable liquid and vapor
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H315: Causes skin irritation
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H319: Causes serious eye irritation
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H361: Suspected of damaging fertility or the unborn child (compound-specific)
Precautionary Statements (P-Codes):
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P210: Keep away from heat/sparks/open flames
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing vapors/mist
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P301 + P330 + P331: IF SWALLOWED – rinse mouth, do not induce vomiting
Storage Conditions
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Store in cool, ventilated, dry area
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Keep container tightly sealed
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Protect from heat, light, and moisture
Transport Information
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ADR/RID: Class 8 / 9 (compound dependent)
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IMDG: Classified as Dangerous Goods (for some esters)
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IATA: Classified as Dangerous Goods (compound dependent)