Chemistry:Ethyl isocyanate
From HandWiki
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| Names | |
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| IUPAC name
Isocyanatoethane
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| Other names
NSC 89687
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| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| EC Number |
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PubChem CID
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| UNII | |
| UN number | 2481 (ETHYL ISOCYANATE) |
CompTox Dashboard (EPA)
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| Properties | |
| C3H5NO | |
| Molar mass | 71.079 g·mol−1 |
| Appearance | colourless liquid with a pungent odor |
| Density | 0.91 g/cm3 |
| Boiling point | 59–61 °C (138–142 °F; 332–334 K) |
| Decomposes in water | |
| Solubility | Miscible in ethanol, ether[1] soluble in chlorinated and aromatic hydrocarbons[1] |
| Vapor pressure | 17.5 mmHg[1] |
Refractive index (nD)
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1.3808 at 20 °C/D[1] |
| Thermochemistry | |
Std enthalpy of
combustion (ΔcH⦵298) |
424.5 kcal (liquid)[1] |
| Hazards | |
| GHS pictograms |    
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| GHS Signal word | Danger |
| HH225Script error: No such module "Preview warning".Category:GHS errors, HH301Script error: No such module "Preview warning".Category:GHS errors, HH302Script error: No such module "Preview warning".Category:GHS errors, HH312Script error: No such module "Preview warning".Category:GHS errors, HH315Script error: No such module "Preview warning".Category:GHS errors, HH319Script error: No such module "Preview warning".Category:GHS errors, HH330Script error: No such module "Preview warning".Category:GHS errors, HH332Script error: No such module "Preview warning".Category:GHS errors, HH334Script error: No such module "Preview warning".Category:GHS errors, HH335Script error: No such module "Preview warning".Category:GHS errors | |
| PP210Script error: No such module "Preview warning".Category:GHS errors, PP233Script error: No such module "Preview warning".Category:GHS errors, PP240Script error: No such module "Preview warning".Category:GHS errors, PP241Script error: No such module "Preview warning".Category:GHS errors, PP242Script error: No such module "Preview warning".Category:GHS errors, PP243Script error: No such module "Preview warning".Category:GHS errors, PP260Script error: No such module "Preview warning".Category:GHS errors, PP261Script error: No such module "Preview warning".Category:GHS errors, PP264Script error: No such module "Preview warning".Category:GHS errors, PP264+P265Script error: No such module "Preview warning".Category:GHS errors, PP270Script error: No such module "Preview warning".Category:GHS errors, PP271Script error: No such module "Preview warning".Category:GHS errors, PP280Script error: No such module "Preview warning".Category:GHS errors, PP284Script error: No such module "Preview warning".Category:GHS errors, PP301+P316Script error: No such module "Preview warning".Category:GHS errors, PP301+P317Script error: No such module "Preview warning".Category:GHS errors, PP302+P352Script error: No such module "Preview warning".Category:GHS errors, PP303+P361+P353Script error: No such module "Preview warning".Category:GHS errors, PP304+P340Script error: No such module "Preview warning".Category:GHS errors, PP305+P351+P338Script error: No such module "Preview warning".Category:GHS errors, PP316Script error: No such module "Preview warning".Category:GHS errors, PP317Script error: No such module "Preview warning".Category:GHS errors, PP319Script error: No such module "Preview warning".Category:GHS errors, PP320Script error: No such module "Preview warning".Category:GHS errors, PP321Script error: No such module "Preview warning".Category:GHS errors | |
| Related compounds | |
Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Tracking categories (test):
Ethyl isocyanate is an organic chemical compound of carbon, hydrogen, nitrogen and oxygen with the molecular formula C
3H
5NO.[2] The compound belongs to the group of isocyanates. Its structural formula is CH
3—CH
2—NCO.[3]
Synthesis
Ethyl isocyanate can be obtained by reacting triphosgene with ethylamine hydrochloride in xylene.
Physical properties
Ethyl isocyanate is a highly flammable, volatile, colorless liquid with a pungent odor that decomposes in water.[4]
- C
3H
5NO + H
2O → CO
2 + NH
2C
2H
5[5]
- C
Uses
The compound is used in the production of pharmaceuticals and pesticides.[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 PubChem. "Ethyl isocyanate" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/8022.
- ↑ Roscoe, Henry Enfield (1890) (in en). A Treatise on Chemistry: The chemistry of the hydrocarbons and their derivatives, or Organic chemistry. D. Appleton and Company. p. 420. https://books.google.com/books?id=zs0cAQAAIAAJ&dq=Ethyl+isocyanate&pg=PA420. Retrieved 19 January 2026.
- ↑ "Ethyl isocyanate". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/aldrich/e33300?srsltid=AfmBOoqS-dlBQ3e2zNz-A0MB9s1bzntt7atfm2RM-xni3jlPMr5ajxO0.
- ↑ "ETHYL ISOCYANATE | CAMEO Chemicals | NOAA". cameochemicals.noaa.gov. https://cameochemicals.noaa.gov/chemical/3431#:~:text=pharmaceuticals%20and%20pesticides.-,Hazards,a%20variety%20of%20data%20sources.&text=Highly%20flammable.,liquid%20and%20carbon%20dioxide%20gas.&text=When%20heated%20to%20decomposition%20ETHYL,1572%5D..
- ↑ Bernthsen, August (1894) (in en). A text-book of organic chemistry, tr. by G. M'Gowan. p. 279. https://books.google.com/books?id=66L1lmVZXqQC&dq=Ethyl+isocyanate&pg=PA579. Retrieved 19 January 2026.
- ↑ "Ethyl isocyanate". NJ.gov. https://nj.gov/health/eoh/rtkweb/documents/fs/0892.pdf.
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