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ISOCYANIC ACID

Chemical Properties Physical properties Uses Preparation
ISOCYANIC ACID
ISOCYANIC ACID structure
CAS No.
75-13-8
Chemical Name:
ISOCYANIC ACID
Synonyms
HNCO;HN=C=O;JACS-75-13-8;ISOCYANIC ACID;Polyisocyanates;Bayhydur XP 2451/1;Hydrogen isocyanate;Isocyanic acid(6CI,8CI,9CI)
CBNumber:
CB5512401
Molecular Formula:
CHNO
Formula Weight:
43.02474
MOL File:
75-13-8.mol

ISOCYANIC ACID Properties

Melting point:
-86 °C
Boiling point:
41.91°C (rough estimate)
Density 
1.04±0.1 g/cm3(Predicted)
refractive index 
1.4300 (estimate)
FDA UNII
QKG6U31925
EPA Substance Registry System
Isocyanic acid (75-13-8)

ISOCYANIC ACID Chemical Properties,Uses,Production

Chemical Properties

Isocyanic acid (HNCO) is a volatile, moderately acidic compound, and the simplest member of the isocyanate family.
Isocyanic acid is a colourless, volatile, poisonous inorganic compound with the formula HNCO; the simplest stable chemical compound that contains carbon, hydrogen, nitrogen, and oxygen, the four most commonly-found elements in organic chemistry and biology. It is a hydracid and a one-carbon compound. It is a conjugate acid of a cyanate. It is a tautomer of a cyanic acid.

Physical properties

Isocyanic acid (ICA, Cas no. 75-13- 8) is a strong organic acid with a kPa of 3.5. ICA is a very reactive compound that can readily transform into other substances. It can lose a proton in an aqueous environment under certain conditions, particularly if a strong base is present, forming an isocyanate. ICA is a tautomer of the less stable, cyanic acid (CAS no. 420-05-3). These forms interchange by a tautomerisation reaction, involving the migration of a hydrogen atom or proton accompanied by a switch of a double bond. ICA is an unstable liquid above 0o C with a tendency to polymerise. The primary polymerisation product, which is also generated in the gas form, is cyanuric acid (CAS no. 108-80-5), a cyclic trimer. ICA is soluble in water, but disintegrates both via ionisation and by formation of ammonia and carbon dioxide.

Uses

The primary use of methyl isocyanate (MIC, CAS no. 624-83-9) is as a chemical intermediate in the production of carbamate pesticides. MIC is also used to produce polyurethane foam and plastics (ATSDR, 2002). Isocyanic acid (ICA, Cas no. 75-13- 8) does not have commercial uses because of its instability. The potential for occupational exposure to ICA largely arises when it is generated as a thermal degradation product of other industrial processes. Ethyl isocyanate is a liquid used commercially to make pharmaceuticals and pesticides (NJDHSS, 2000). Phenyl isocyanate (PIC, CAS no. 103-71-9) is a trace constituent in commercial diphenyl methane diisocyanate products.

Preparation

Isocyanic acid was prepared in pure form by reaction of KOCN or NaOCN with stearic or oxalic acid in good yield.

Definition

ChEBI: A colourless, volatile, poisonous inorganic compound with the formula HNCO; the simplest stable chemical compound that contains carbon, hydrogen, nitrogen, and oxygen, the four most commonly-found elements in organic chemistry and biology.

Hazard

Severe explosion risk. Strong irritant to eyes, skin and mucous membranes.

ISOCYANIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products


ISOCYANIC ACID Suppliers

Global( 27)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 10207 58
HENAN BON INDUSTRIAL CO.,LTD
0371-55170695
info@hnbon.com CHINA 20534 58
Tianjin Zhongxin Chemtech Co., Ltd. 022-66880623
86(0)22-66880086 sales@tjzxchem.com;sales@tjzxchem.com China 598 60
Syntechem Co.,Ltd Please Email
E-Mail Inquiry info@syntechem.com China 13010 57
China Langchem Inc. 0086-21-58956006,021-38701807
0086-21-58956100 sales@langchem.com China 7836 57
Beijing HuaMeiHuLiBiological Chemical 010-56205725
010-65763397 waley188@sohu.com China 12341 58
Cheng Du Micxy Chemical Co.,Ltd 18048500443
028-85632863 sales@micxy.com; China 13070 58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 17798518460 025-66099280-
sales01@aikonchem.com China 15469 50
Hubei Jusheng Technology Co.,Ltd 18871490274 027-59599241-
sales@hubeijusheng.com;sales@hubeijusheng.com China 9863 58
Nanjing Vital Chemical Co., Ltd. 18652950785
025-87193546 chemweiao@163.com; China 9077 60

ISOCYANIC ACID Spectrum


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