Butyl phosphonate ((BuO)2HPO)
Dibutyl phosphite
CAS: 1809-19-4
Molecular Formula: C8H19O3P
Butyl phosphonate ((BuO)2HPO) - Names and Identifiers
| Name | Dibutyl phosphite |
| Synonyms | Dibutylfosfit Dibutyl phosphite dibutyl phosphonate Dibutoxyphosphine oxide dibutoxy(oxo)phosphonium dibutylhydrogenphosphonate butylphosphonate((buo)2hpo) Dibutyl hydrogen phosphonate Dinbutylphosphitecolorlessliq Butyl phosphonate ((BuO)2HPO) butylalcohol,hydrogenphosphite Butyl alcohol, hydrogen phosphite 3-{N-(4-Toluolsulfonyl)-L-Alaninyloxy}-5-Phenylpyrrole |
| CAS | 1809-19-4 |
| EINECS | 217-316-1 |
| InChI | InChI=1/C8H19O3P/c1-3-5-7-10-12(9)11-8-6-4-2/h12H,3-8H2,1-2H3 |
Butyl phosphonate ((BuO)2HPO) - Physico-chemical Properties
| Molecular Formula | C8H19O3P |
| Molar Mass | 194.21 |
| Density | 0.995 g/mL at 25 °C (lit.) |
| Melting Point | 70.5 °C |
| Boling Point | 118-119 °C/11 mmHg (lit.) |
| Flash Point | 250°F |
| Water Solubility | slightly soluble |
| Solubility | H2O: soluble7.3g/L at 25°C |
| Vapor Presure | <0.1 mm Hg ( 20 °C) |
| Appearance | Liquid |
| Specific Gravity | 0.995 |
| Color | Clear |
| BRN | 1099706 |
| Refractive Index | n20/D 1.423(lit.) |
| Physical and Chemical Properties | Character: colorless transparent liquid. relative density 0.988 refractive index 1.424 solubility insoluble in water, soluble in organic solvents. |
| Use | Used for pharmaceutical, fragrance synthesis, also used as additives, anti-wear additives for lubricating oil |
Butyl phosphonate ((BuO)2HPO) - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R21 - Harmful in contact with skin R37/38 - Irritating to respiratory system and skin. R40 - Limited evidence of a carcinogenic effect R41 - Risk of serious damage to eyes R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 1760 |
| WGK Germany | 3 |
| RTECS | HS6475000 |
| HS Code | 29209090 |
Butyl phosphonate ((BuO)2HPO) - Upstream Downstream Industry
Butyl phosphonate ((BuO)2HPO) - Reference Information
| LogP | 1.81 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for pharmaceutical, fragrance synthesis, also used as additives for lubricating oil, anti-wear agent used as anti-wear agent for lubricating oil. With the sulfide isobutylene and other additives composite, adjustable into the car hyperbolic gear oil, the general amount of 0.5-1.0%. Because the product is acidic and easy to decompose in water, it should be used with an appropriate amount of alkaline rust inhibitor. In addition, the product can also be used as flame retardants, gasoline additives, antioxidants, solvents and organic synthesis intermediates. |
| production method | is obtained by reacting butanol with phosphorus trichloride. The U. S. Hooker Chemical Company reacts butanol with phosphorus trichloride at sub-atmospheric pressure. The liquid alcohol enters the reaction zone and immediately evaporates to absorb the heat generated by the exothermic reaction, so that the reaction proceeds smoothly. The yield of dibutyl phosphite was 92% based on PCI3, and increased with the increase of alcohol dosage. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 3200 mg/kg |
| stimulation data | Skin-rabbits 500 mg/24 h mild; eye-rabbit 250 μg severe |
| flammability hazard characteristics | flammable in open flame, high temperature, strong oxidant; thermal decomposition of toxic phosphorus oxide gas by acid |
| storage and transportation characteristics | The package is complete, light, light; The warehouse is ventilated, away from open flame, high temperature, and oxidant, separate storage of acid |
| fire extinguishing agent | foam, carbon dioxide, dry powder, sand, 1211 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:04
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Raw Materials for Butyl phosphonate ((BuO)2HPO)