Nitrapyrin

Nitrapyrin is an organic compound with the formula ClC5H3NCCl3, and is described as a white crystalline solid with a sweet odor. It is used as a nitrification inhibitor and bactericide, which is applied to soils for the growing of agricultural crops since 1974. Nitrapyrin was put up for review by the EPA and deemed safe for use in 2005. Nitrapyrin is an effective nitrification inhibitor to the bacteria Nitrosomonas and has been shown to drastically the reduce the amount of N2O emissions from the soil.

Nitrapyrin
Names
Preferred IUPAC name
2-Chloro-6-(trichloromethyl)pyridine
Other names
N-serve, 2,2,2,6-Tetrachloro-2-picoline
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.016.076
UNII
  • InChI=1S/C6H3Cl4N/c7-5-3-1-2-4(11-5)6(8,9)10/h1-3H
    Key: DCUJJWWUNKIJPH-UHFFFAOYSA-N
  • InChI=1/C6H3Cl4N/c7-5-3-1-2-4(11-5)6(8,9)10/h1-3H
    Key: DCUJJWWUNKIJPH-UHFFFAOYAC
  • c1cc(nc(c1)Cl)C(Cl)(Cl)Cl
Properties
C6H3Cl4N
Molar mass 230.907
Appearance colorless/white crystalline solid
Odor Sweet
Melting point 63 °C; 145 °F; 336 K
insoluble
Vapor pressure 0.003 mmHg (22.8°C)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 explosive
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
REL (Recommended)
 TWA 10 mg/m3 (total) ST 20 mg/m3 (total) TWA 5 mg/m3 (resp)
IDLH (Immediate danger)
 N.D.
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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