Ethyl cellosolve (2-ethoxyethanol, C 2 H 5 OC 2 H 4 OH) is ethylene glycol monoethyl ether, a colorless, clear, flammable liquid with an alcohol smell. It is soluble in water. Belongs to the III class of danger .
| Ethyl cellosolve | |
|---|---|
| General | |
| Systematic name | 2-Ethoxyethanol |
| Traditional names | Ethyl cellosolve |
| Chem. formula | C₄H₁₀O₂ |
| Rat formula | C 2 H 5 OCH 2 CH 2 OH |
| Physical properties | |
| condition | liquid |
| Molar mass | 90.042 g / mol |
| Density | 0.931 g / cm³ |
| Thermal properties | |
| T. melt. | −70 ° C |
| T. bale. | 135.6 ° C |
| T. aux. | |
| T. svpl. | 237.8 ° C |
| Etc. blast | |
| Steam pressure | |
| Classification | |
| Reg. CAS number | |
| PubChem | |
| Reg. EINECS number | |
| Smiles | |
| Inchi | |
| RTECS | |
| Chebi | |
| ChemSpider | |
| Security | |
| MPC | 10 mg / m³ (in air) |
Content
- 1 Properties
- 2 Getting
- 3 Application
- 4 Substitutes
- 5 notes
- 6 Sources
- 7 References
Properties
Soluble in water , alcohols , glycols , diethyl ether , acetone , chloroform and other organic solvents , dissolves cellulose nitrates and acetates .
Getting
Ethyl cellosolve is obtained by the reaction of ethyl alcohol with ethylene oxide at a temperature of 150-200 ° C and a pressure of 2-4 MPa in the presence of catalysts ( acids , alkalis , or zeolites , aluminosilicates , silica gels ):
CH3CH2OH + (CH2CH2) O -> CH3CH2OCH2CH2OH
Application
It is used as a solvent for many paints and varnishes on the most diverse chemical basis. Ethyl cellosolve is so widely used due to its exceptional solvent capacity, since almost all known solvents are mixed with it even at room temperature and at the same time it is soluble in water . Ethyl cellosolve is also used as a solvent for cleaning purposes (to remove carbon deposits, old paint, etc.), in printing, as antifreeze in aviation fuel to prevent freezing of the water contained in it, the main component of anti-crystallization liquids (“liquid And ”And“ IM liquid ”), as an azeotropic additive for the separation of various hydrocarbons and alcohols. Ethyl cellosolve produced is regulated by the standard GOST 8313-88.
Substitutes
Esters of other glycols with similar molecular weights have similar physical and chemical properties. These include butyl cellosolve , ethyl carbitol , propyl cellosolve , methyl cellosolve , etc.
Notes
Sources
Great Russian Encyclopedia "Chemistry", Moscow 1993