Chloropicrin

Chloropicrin
Names
IUPAC name
Trichloro(nitro)methane
Other names
  • Nitrochloroform
  • Nitrotrichloromethane
  • PS
  • Tri-clor
  • Trichloronitromethane
Identifiers
CAS Number
3D model (JSmol)
Beilstein Reference
 1756135
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.847
EC Number
  • 200-930-9
Gmelin Reference
 240197
KEGG
PubChem CID
RTECS number
  • PB6300000
UNII
UN number 1580
InChI
  • InChI=1S/CCl3NO2/c2-1(3,4)5(6)7 Y
    Key: LFHISGNCFUNFFM-UHFFFAOYSA-N Y
  • InChI=1/CCl3NO2/c2-1(3,4)5(6)7
    Key: LFHISGNCFUNFFM-UHFFFAOYAJ
SMILES
  • ClC(Cl)(Cl)[N+]([O-])=O
Properties
Chemical formula
 CCl3NO2
Molar mass 164.375 g/mol
Appearance colorless liquid
Odor irritating[1]
Density 1.692 g/ml
Melting point −69 °C (−92 °F; 204 K)
Boiling point 112 °C (234 °F; 385 K) (decomposes)
Solubility in water
 0.2%[1]
Vapor pressure 18 mmHg (20°C)[1]
Magnetic susceptibility (χ)
 −75.3·10−6 cm3/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Extremely toxic and irritating to skin, eyes, and lungs.
GHS labelling:
Pictograms
Signal word
 Danger
Hazard statements
 H301, H314, H330, H370, H372, H410
Precautionary statements
 P260, P264, P270, P271, P273, P280, P284, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P310, P314, P320, P321, P330, P363, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)
4
0
3
Lethal dose or concentration (LD, LC):
9.7 ppm (mouse, 4 hr)
117 ppm (rat, 20 min)
14.4 ppm (rat, 4 hr)[2]
293 ppm (human, 10 min)
340 ppm (mouse, 1 min)
117 ppm (cat, 20 min)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 0.1 ppm (0.7 mg/m3)[1]
REL (Recommended)
 TWA 0.1 ppm (0.7 mg/m3)[1]
IDLH (Immediate danger)
 2 ppm[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

Chloropicrin, also known as PS (from Port Sunlight[3]) and nitrochloroform, is a chemical compound currently used as a broad-spectrum antimicrobial, fungicide, herbicide, insecticide, and nematicide.[4] It was used as a poison gas in World War I and the Russian military has been accused of using it in the Russo-Ukrainian War.[5][6][7] Its chemical structural formula is Cl3C−NO2.

  1. ^ a b c d e f NIOSH Pocket Guide to Chemical Hazards. "#0132". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ a b "Chloropicrin". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Foulkes, C. H. (31 January 2012). "GAS!" – The Story of the Special Brigade. Andrews UK Limited. p. 193.
  4. ^ "RED Fact Sheet: Chloropicrin" (PDF). US Environmental Protection Agency. 10 July 2008. p. 2. Archived from the original (PDF) on October 31, 2008. Retrieved 20 September 2013.
  5. ^ Office of the Spokesperson (1 May 2024). "Imposing New Measures on Russia for its Full-Scale War and Use of Chemical Weapons Against Ukraine". U.S. Department of State. Archived from the original on 23 May 2024. Retrieved 23 May 2024.
  6. ^ "A top Russian general is killed in a Moscow bombing claimed by Ukraine". Associated Press News. 2024-12-17. Retrieved 2024-12-18.
  7. ^ Quell, Molly (2025-07-04). "Dutch intelligence services say Russia has stepped up use of banned chemical weapons in Ukraine". Reuters. Retrieved 2025-07-05.
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