Nitrogen trichloride

Nitrogen trichloride
Structural formula of nitrogen trichloride
Space-filling model of nitrogen trichloride
  Nitrogen, N
  Chlorine, Cl
Nitrogen trichloride
Names
Other names
Trichloramine
Agene
Nitrogen(III) chloride
Trichloroazane
Trichlorine nitride
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.030.029 Edit this at Wikidata
EC Number
  • 233-045-1
1840
RTECS number
  • QW974000
UNII
  • InChI=1S/Cl3N/c1-4(2)3 checkY
    Key: QEHKBHWEUPXBCW-UHFFFAOYSA-N checkY
  • InChI=1/Cl3N/c1-4(2)3
    Key: QEHKBHWEUPXBCW-UHFFFAOYAZ
  • ClN(Cl)Cl
Properties
NCl3
Molar mass 120.36 g·mol−1
Appearance yellow oily liquid
Odor chlorine-like
Density 1.653 g/mL
Melting point −40 °C (−40 °F; 233 K)
Boiling point 71 °C (160 °F; 344 K)
immiscible
slowly decomposes
Solubility soluble in benzene, chloroform, CCl4, CS2, PCl3
Structure
orthorhombic (below −40 °C)
trigonal pyramidal
0.6 D
Thermochemistry
232 kJ/mol
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g. hydrogen peroxideSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
2
0
3
OX
93 °C (199 °F; 366 K)
Related compounds
Other anions
 Nitrogen trifluoride
Nitrogen tribromide
Nitrogen triiodide
Other cations
 Phosphorus trichloride
Arsenic trichloride
Related chloramines
 Monochloramine
Dichloramine
Related compounds
 Nitrosyl chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Nitrogen trichloride, also known as trichloramine, is the chemical compound with the formula NCl3. This yellow, oily, and explosive liquid is most commonly encountered as a product of chemical reactions between ammonia-derivatives and chlorine (for example, in swimming pools). Alongside monochloramine and dichloramine, trichloramine is responsible for the distinctive 'chlorine smell' associated with swimming pools, where the compound is readily formed as a product from hypochlorous acid reacting with ammonia and other nitrogenous substances in the water, such as urea from urine.[1]

  1. ^ "Chlorine Chemistry - Chlorine Compound of the Month: Chloramines: Understanding "Pool Smell"". American Chemistry Council. Retrieved 17 December 2019.