QHA-TEP (TEP) is a high-purity triethyl phosphate, chemical name Triethyl Phosphate, CAS No. 78-40-0. It is a colorless, transparent, low-viscosity liquid with mild odor, excellent stability, good solubility and plasticizing property. It acts as an efficient flame retardant, plasticizer, solvent and chelating agent, with low volatility, good electrical insulation and environmental compatibility, widely used in plastics, coatings, textiles, electrical materials and polymer processing.
| Item | Standard Value | Test Method |
|---|---|---|
| Appearance | Colorless clear liquid | Visual Inspection |
| Color (APHA) | ≤20 | Platinum-Cobalt Colorimetry |
| Purity (wt%) | ≥99.5 | Gas Chromatography |
| Specific Gravity (20℃) | 1.068–1.072 | Density Meter |
| Acidity (mgKOH/g) | ≤0.05 | Titration |
| Moisture (wt%) | ≤0.10 | Karl Fischer |
| Flash Point (℃) | ≥115 | Closed Cup |
| Refractive Index (25℃) | 1.403–1.405 | Refractometer |
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