ETHYL ISOCYANATE

PRODUCT IDENTIFICATION

CAS NO. 109-90-0

ETHYL ISOCYANATE

EINECS NO. 203-717-9
FORMULA C2H5NCO
MOL WT. 71.08

H.S. CODE

2929.10.5500
TOXICITY  
SYNONYMS Isocyanatoethane; Isocyanic acid, Ethyl ester; Ethyl isocyanate;
Ethyl Isocyanat (Dutch); n-Etilo Isocianato (Spanish); Ethylisocyanat (Dutch); Isocianato de etilo (Spanish); Isocyanate d'éthyle (French);
SMILES C(C)N=C=O

CLASSIFICATION

 

EXTRA NOTES

UN2481 [Flammable liquid

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE clear liquid
MELTING POINT  
BOILING POINT 60 C
SPECIFIC GRAVITY 0.895 - 0.905
SOLUBILITY IN WATER Hydrolyses
log P 1.28 (Octanol-water)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

Health: 3; Flammability: 3; Reactivity: 2

REFRACTIVE INDEX

1.3808
FLASH POINT -10 C
STABILITY Stable under ordinary conditions. Moisture sensitive

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Isocyanate

Google Scholar Search

PubChem Compound Summary - Ethyl isocyanate

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Ethyl isocyanate

http://www.ebi.ac.uk/ -  Ethyl isocyanate

http://www.ncbi.nlm.nih.gov/ -  Ethyl isocyanate

http://www.cdc.gov/
Isocyanates are a family of highly reactive, low molecular weight chemicals. They are widely used in the manufacture of flexible and rigid foams, fibers, coatings such as paints and varnishes, and elastomers, and are increasingly used in the automobile industry, autobody repair, and building insulation materials. Spray-on polyurethane products containing isocyanates have been developed for a wide range of retail, commercial, and industrial uses to protect cement, wood, fiberglass, steel and aluminum, including protective coatings for truck beds, trailers, boats, foundations, and decks.

Local:
Cyanic acid (the isomer of fulminic acid) is an unstable (explosive), poisonous, volatile, clear liquid with the structure of H-O-C≡N (the oxoacid formed from the pseudohalogen cyanide), which is readily converted to cyamelide and fulminic acid. There is another isomeric cyanic acid with the structure of H-N=C=O, called isocyanic acid. Cyanate group (and isocyanate group) can react with itself. Cyanuric acid (also called pyrolithic acid), white monoclinic crystal with the structure of [HOC(NCOH)2N], is the trimer of cyanic acid. The trimer of isocyanic acid is called biuret.

  • Cyanic acid: H-N=C=O or H-O-C≡N
  • Fulminic acid: (H-C=N-O) or H-C≡N-O
  • Isocyanic acid: H-N=C=O
  • Cyanuric acid: HOC(NCOH)2N
  • Biuret: (NH2)CO)2 NH

Cyanic acid hydrolyses to ammonia and carbon dioxide in water. The salts and esters of cyanic acid are cyanates. But esters of normal cyanic acid are not known. The salts and esters of isocyanic acid are isocyanates. The isocyanate group reacts with the hydroxyl functional group to form a urethane linkage. Diisocyanates (or polyisocyanates) are monomers for polyurethane production. Polyurethane is made from a variety of diisocyanates in conjunction with polyether and polyester polyols as co-reactants by addition polymerization which needs at least two -N=C=O groups. Polyurethanes are widely used in the manufacture of flexible and rigid foams, fibres, coatings, and elastomers. If isocyanate monomer is polymerized with amine group, polyurea is produced. Cyanates (or Isocyanates) are readily reacts with various form of amine (including ammonia, primary-, secondary-amines, amides and ureas) and hydroxyl functional group. They are used in the synthesis for the target molecules such as pharmaceuticals, pesticides, textile softener, lubricants and industrial disinfectants. They can convert to polycyclic compounds such as hydantoins and imidazolons. They are used as plastic additives and as heat treatment salt formulations for metals.

SALES SPECIFICATION

APPEARANCE

clear liquid
ASSAY 97.0% min
SPECIFIC GRAVITY 0.895 - 0.905
TRANSPORTATION
PACKING  
HAZARD CLASS 6.1 (Packing Group: I)
UN NO. 2481
SAFETY INFORMATION

HAZARD OVERVIEW

Flammable liquid, Toxic by ingestion, Respiratory sensitiser, Irritant, lachrymator.

GHS

 

SIGNAL WORD

Danger

PICTOGRAMS

HAZARD STATEMENTS

H225-H301-H312 + H332-H315-H319-H334-H335

P STATEMENTS

P210-P261-P280-P301 + P310-P305 + P351 + P338-P342 + P311

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

11-20/21-25-36/37/38-42

SAFETY PHRASES

16-26-36/37/39-45

PRICE INFORMATION