Hexamethylphosphorotriamine CAS Number: 680-31-9
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Category：Pharmaceutical Materials | Brand：MT
Introduction
CAS Number: 680-31-9
Molecular Formula: C6H18N3OP
Molecular Weight: 179.20 g/mol
Appearance: Colorless transparent and mobile liquid with a slight ammonia odor
Melting Point: 7 °C
Boiling Point: 230-232 °C
Usage: Used as a polar solvent, chromatographic fixed liquid, and chemical sterilant.
Hexamethylphosphorotriamine, commonly abbreviated as HMPA, is an organic compound with the CAS number 680-31-9. It is a colorless, transparent, and odorless liquid with slight ammonia-like properties. HMPA is widely used in organic synthesis as a polar aprotic solvent due to its ability to dissolve a variety of organic and inorganic compounds. It also serves as a catalyst in the polymerization of propylene and as an additive in rocket fuels to lower their freezing points. However, it is classified as a potential carcinogen and should be handled with caution.
| Property | Value |
|---|---|
| Chemical Formula | C6H18N3OP |
| CAS Number | 680-31-9 |
| Physical Properties | – |
| Appearance | Colorless, transparent, and mobile liquid |
| Odor | Slight ammonia-like |
| Density | 1.0253 g/mL at 20°C |
| Melting Point | 7.2°C |
| Boiling Point | 233°C at 101.3 kPa |
| Refractive Index | 1.4582 at 20°C |
| Chemical Properties | – |
| Molecular Weight | 179.20 g/mol |
| Flash Point | 105°C |
| Solubility | Miscible with water, ethanol, ether, and benzene |
| Stability | Stable under normal conditions, incompatible with strong acids and oxidizing agents |
| Vapor Pressure | 0.07 mmHg at 25°C |
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