| [Flash Point] 75 | |
| [Fire Fighting] Wear approved SCBA in full pressure-demand and full protective gear. Combustible Liquid. In case of fire use water spray, dry chemical, carbon dioxide, or chemical foam. | |
| [Ingestion] Get medical aid. Wash mouth out with water. | |
| [Inhalation] Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | |
| [Skin] Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | |
| [Eyes] Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid. Get medical aid immediately. | |
| [Storage] Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. | |
| [Handling] Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. | |
| [Ingestion] May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. | |
| [Inhalation] Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. | |
| [Skin] Causes skin irritation. | |
| [Eyes] Causes eye irritation. | |
| [EC Risk Phrase] R 36/37/38 | |
| [EC Safety Phrase] S 26 36 | |
| [Personal Protection] Wear appropriate protective eyeglasses or chemical safety goggles, protective gloves and clothing to prevent exposure. | |
| [Respirators] Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | |
| [Appearance] Colorless liquid | |
| [Solubility in water] Soluble | |
| [Boiling Point] 190 - 194 | |
| [Density] 1.0406 g/cm3 (30C) | |
| [Refractive Index] 1.4101 (30 C) | |
| [Product Name] Diethyl methylphosphonate | |
| [Synonyms] 1-(Ethoxy-methylphosphoryl)oxyethane DEMP Diethoxymethylphosphine oxide Diethyl methanephosphonate O,O-Diethyl methylphosphonate | |
| [CAS] "CASEN_683-08-9.htm">683-08-9 | |
| [Formula] C5H13O3P | |
| [Molecular Weight] 152.15 | |
| [EINECS] 211-667-4 | |
| [RTECS] SZ9085000 | |
| [RTECS Class] Other | |
| [Beilstein/Gmelin] 1753416 | |
| [Small spills/leaks] Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. | |
| [Stability] Stable under normal temperatures and pressures. | |
| [Incompatibilities] Strong oxidizing agents, strong bases. | |
| [Decomposition] Carbon monoxide, oxides of phosphorus, carbon dioxide. |
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