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79380

Sigma-Aldrich

Phosgene solution

~20% in toluene

Synonym(s):

Carbon oxychloride, Carbonyl chloride, Phosgen

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About This Item

Linear Formula:
COCl2
CAS Number:
Molecular Weight:
98.92
Beilstein/REAXYS Number:
1098367
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.22

form

solution

Quality Level

reaction suitability

reaction type: Carbonylations

concentration

~20% in toluene

impurities

≤300 mg/kg benzene

storage temp.

2-8°C

SMILES string

ClC(Cl)=O

InChI

1S/CCl2O/c2-1(3)4

InChI key

YGYAWVDWMABLBF-UHFFFAOYSA-N

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General description

Phosgene is an organic chemical compound widely used as a chlorinating agent, carbonylating agent, and dehydrating agent in organic synthesis for the synthesis of various compounds.

Application

Phosgene solution (~20% in toluene) can be used as a reagent in the synthesis of multiblock copolymers via multiple coupling reactions. It is also used in the activation of the hydroxyl groups in poly(ethylene glycol) diol (PEG diol) to synthesize linear multifunctional poly(ethylene glycol).

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT SE 1 Inhalation - STOT SE 3

target_organs

Central nervous system, Lungs

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

39.2 °F - closed cup

flash_point_c

4 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


Certificates of Analysis (COA)

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J P Wyatt et al.
Journal of accident & emergency medicine, 12(3), 212-213 (1995-09-01)
Phosgene is a highly toxic gas to which some workers may be occupationally exposed. This case report demonstrates the possibility of refrigeration workers suffering phosgene poisoning after heating certain chlorinated fluorocarbons ('freons'). The need to suspect phosgene exposure and observe
O Gyllenhaal et al.
Journal of chromatography, 435(2), 259-269 (1988-01-08)
The use of phosgene as a derivatizing agent for bifunctional compounds prior to gas and liquid chromatographic analysis is reviewed. Applications include gas chromatographic determinations of metoprolol and its metabolites in biological fluids, enantiomeric separations of beta-blocking drugs and sympathomimetic
Alfred M Sciuto et al.
Inhalation toxicology, 16(8), 565-580 (2004-06-19)
A series of studies was performed to address treatment against the former chemical warfare edemagenic gas phosgene. Both in situ and in vivo models were used to assess the efficacy of postexposure treatment of phosgene-induced lung injury using clinically existing
Christopher Grainge et al.
Clinical toxicology (Philadelphia, Pa.), 48(6), 497-508 (2010-09-21)
Phosgene is a substance of immense importance in the chemical industry. Because of its widespread industrial use, there is potential for small-scale exposures within the workplace, large-scale accidental release, or even deliberate release into a built-up area. This review aims
Wenli Li et al.
Toxicological sciences : an official journal of the Society of Toxicology, 131(2), 612-628 (2012-11-13)
Phosgene gas is a lower respiratory tract irritant. As such, it stimulates nociceptive vagal C-fiber-related reflexes in a dose-rate and concentration × exposure duration (C × t)-dependent manner. In rats, this reflex is characterized by extended apnea time periods, bradycardia

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