Editing Nitrogen trichloride (section)

{{Short description|Chemical compound}}
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 477001603
| ImageFile1 = NCl3 dimensions.svg
| ImageName1 = Structural formula of nitrogen trichloride
| ImageFile2 = Nitrogen-trichloride-3D-vdW.png
| ImageName2 = Space-filling model of nitrogen trichloride
| ImageCaption2 = {{legend|blue|[[Nitrogen]], N}}{{legend|lime|[[Chlorine]], Cl}}
| ImageFile3 = Nitrogen trichloride.JPG
| ImageSize3 = 
| ImageName3 = Nitrogen trichloride
| OtherNames = Trichloramine<br />Agene<br />Nitrogen(III) chloride<br />Trichloroazane<br />Trichlorine nitride
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 55361
| InChI = 1/Cl3N/c1-4(2)3
| InChIKey = QEHKBHWEUPXBCW-UHFFFAOYAZ
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 37382
| SMILES = ClN(Cl)Cl
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Cl3N/c1-4(2)3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = QEHKBHWEUPXBCW-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 10025-85-1
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = VA681HRW8W
| PubChem = 61437
| RTECS = QW974000
| EINECS = 233-045-1
| Gmelin = 1840
 }}
|Section2={{Chembox Properties
| Formula = {{chem2|NCl3}}
| N=1|Cl=3
| Appearance = yellow oily liquid
| Odor = [[chlorine]]-like
| Density = 1.653 g/mL
| Solubility = immiscible<br> slowly decomposes
| SolubleOther = soluble in [[benzene]], [[chloroform]], [[carbon tetrachloride|{{chem2|CCl4}}]], [[carbon disulfide|{{chem2|CS2}}]], [[phosphorus trichloride|{{chem2|PCl3}}]]
| MeltingPtC = −40
| BoilingPtC = 71
| Viscosity =
 }}
|Section3={{Chembox Structure
| MolShape = trigonal pyramidal
| CrystalStruct = [[orthorhombic]] (below −40&nbsp;°C)
| Dipole = 0.6 [[Debye|D]]
 }}
|Section4={{Chembox Thermochemistry
| DeltaHf = 232 kJ/mol
 }}
|Section7={{Chembox Hazards
| NFPA-H = 2
| NFPA-F = 0
| NFPA-R = 3
| NFPA-S = Ox
| AutoignitionPtC = 93
| AutoignitionPt_notes = 
 }}
|Section8={{Chembox Related
| OtherAnions = [[Nitrogen trifluoride]]<br />[[Nitrogen tribromide]]<br />[[Nitrogen triiodide]]
| OtherCations = [[Phosphorus trichloride]]<br />[[Arsenic trichloride]]
| OtherFunction_label = [[chloramines]]
| OtherFunction = [[Monochloramine]]<br />[[Dichloramine]]
| OtherCompounds = [[Nitrosyl chloride]]}}
}}
'''Nitrogen trichloride''', also known as '''trichloramine''', is the [[chemical compound]] with the [[chemical formula|formula]] {{chem2|NCl3}}. This yellow, oily, and explosive liquid is most commonly encountered as a product of [[chemical reaction]]s between [[ammonia]]-derivatives and [[chlorine]] (for example, in [[swimming pool]]s). 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]].<ref>{{cite web |date=July 2006 |title=Chloramines: Understanding "Pool Smell"  |url=https://chlorine.americanchemistry.com/Science-Center/Chlorine-Compound-of-the-Month-Library/Chloramines-Understanding-Pool-Smell/ |website=[[American Chemistry Council]] |url-status=dead |archive-url=https://web.archive.org/web/20191217170314/https://chlorine.americanchemistry.com/Science-Center/Chlorine-Compound-of-the-Month-Library/Chloramines-Understanding-Pool-Smell/ |archive-date=17 December 2019 |access-date=17 December 2019}}</ref>