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Atmofair Tris(2-Chloroethyl) Phosphite

Tris(2-chloroethyl) phosphite (CAS 115-96-8) is a colorless to pale transparent liquid with a faint pungent odor, featuring C₆H₁₂Cl₃O₃P as its molecular formula and 269.49 g/mol as molar mass. Insoluble in water but miscible with ethanol/ether, it serves as an organic synthesis intermediate, flame retardant, and PVC additive, demanding sealed storage at -20 °C.

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Description

 

CAS Number 140-08-9
English Name Tris(2-chloroethyl) phosphite
Molecular Formula C₆H₁₂Cl₃O₃P
Molecular Weight 269.490
Appearance Colorless to nearly colorless transparent liquid, with slight pungent odor (some sources indicate no obvious characteristic odor)
Exact Mass 267.95900
PSA (Topological Polar Surface Area) 41.28000
LogP (Hydrophobic Parameter Calculation Reference Value) 2.97950
Density 1.328 g/mL (25 Degrees Celsius, literature value)
Boiling Point 112-115 Degrees Celsius (2 mmHg, literature value); 98 Degrees Celsius (0.1 kPa, some source data)
Melting Point Not determined (N/A)
Flash Point 375 ℉ (approximately 190.6 Degrees Celsius)
Refractive Index n₂₀/D 1.487 (20 Degrees Celsius, literature value)
Vapor Pressure 0.00359 mmHg (25 Degrees Celsius, calculated value)
Solubility Insoluble in water, soluble in common organic solvents such as ethanol, ether, benzene, acetone
Storage Conditions It is recommended to store sealed at -20 Degrees Celsius, protected from moisture, away from open flames and oxidants, and should be placed in a locked warehouse
Main Uses
  • As an organic synthesis intermediate, it is an important precursor for the preparation of dimethyl ketene;
  • Used as a flame retardant for plastics and rubber materials, which can improve the flame retardant performance of materials;
  • In the processing of polyvinyl chloride (PVC), it can be used as an auxiliary plasticizer and stabilizer to improve the processing performance and stability of products;
  • Used in the field of medicine and pesticides as a raw material for the synthesis of specific phosphorus-containing compounds.
GHS Classification Flammable liquids (Category 4), Acute toxicity – Oral (Category 3), Acute toxicity – Dermal (Category 3), Skin corrosion/irritation (Category 3), Serious eye damage/irritation (Category 2A)
GHS Symbols GHS06 (Toxicity), GHS08 (Health hazard)
Signal Word Danger
Hazard Statements H301+H311 (Toxic if swallowed or in contact with skin), H315 (Causes skin irritation), H319 (Causes serious eye irritation), H330 (Fatal if inhaled), H335 (May cause respiratory irritation), H340 (May cause genetic defects), H350 (May cause cancer)
Precautionary Statements P201 (Obtain special instructions before use), P260 (Do not breathe dust/fume/gas/mist/vapors/spray), P280 (Wear protective gloves/protective clothing/eye protection/face protection), P284 (Wear respiratory protection), P301+P310 (If swallowed: Immediately call a poison center or doctor), P305+P351+P338 (If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing)

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