| Product Identification | Back to Contents | 【Product Name】
Diethyl hydrogen phosphonate | 【Synonyms】
Diethyl acid phosphite
Diethyl phosphite
Diethyl phosphonate
Hydrogen diethyl phosphite | 【CAS】
762-04-9 | 【Formula】
C4H11O3P | 【Molecular Weight】
138.12 | 【EINECS】
212-091-6 | 【RTECS】
TG7875000 | 【RTECS Class】
Other | 【Beilstein/Gmelin】
605759 | 【Beilstein Reference】
4-01-00-01329 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Clear, colorless liquid. | 【Solubility in water】
Soluble | 【Boiling Point】
50 | 【Vapor Pressure】
< 2 | 【Density】
1.093 g/cm3 (0 C) | 【Heat Of Vaporization】
38.10 kJ/mol | 【Usage】
Textile finishing agent, antioxidant, additive for adhesives & for extreme pressure lubricant, chemical intermediate for organic phosphorus compounds. | 【Refractive Index】
1.4057 (18.4 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice. | 【Inhalation】
Remove from exposure to fresh air immediately. | 【Skin】
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Keep container closed when not in use. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
Harmful by inhalation. | 【Skin】
Irritating. Harmful on contact with the skin. | 【Hazards】
During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Wear appropriate safety goggles, protective clothing and gloves. | 【Respirators】
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. | 【Exposure Effects】
The toxological properties of this substance have not been fully investigated. | 【Poison Class】
5 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
90 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. |
| Stability and Reactivity | Back to Contents | 【Stability】
Stable under normal temperatures and pressures. | 【Incompatibilities】
Strong oxidizing agents - moist air or water - strong bases - strong acids - acid chlorides. | 【Decomposition】
Phosphine, carbon monoxide, oxides of phosphorus, irritating and toxic fumes and gases, carbon dioxide. |
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