Dichloroisocyanuric acid

Structural formula
Dichloroisocyanuric acid ( 1 ) and its tautomeric form ( 2 )
General
Surname	Dichloroisocyanuric acid
other names	1,3-dichloro-5 H - (1,3,5) -triazine-2,4,6-trione Drought
Molecular formula	C 3 HCl 2 N 3 O 3
Brief description	white, oxidizing solid with a strong odor of chlorine
External identifiers / databases
CAS number 2782-57-2 2893-78-9 ( sodium salt ) 2244-21-5 ( potassium salt ) PubChem 16726 Wikidata Q425286
properties
Molar mass	198.97 g mol −1
Physical state	firmly
Melting point	226.6 ° C (decomposition)
solubility	heavy in water (8 g l −1 at 35 ° C)
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger H and P phrases H: 272-302-319-335-410 EUH: 031 P: 273-305 + 351 + 338-402(Sodium salt dihydrate)
Toxicological data	1170 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Dichloroisocyanuric acid is a chemical compound from the group of chlorinated triazines and triazinones .

Extraction and presentation

Dichloroisocyanuric, by chlorination of cyanuric acid are obtained:

${\displaystyle \mathrm {(C(O)NH)_{3}\ +\ 2\ Cl_{2}\rightarrow } }$

${\displaystyle \mathrm {(C(O)NCl)_{2}(C(O)NH)+2\ HCl} }$

use

Dichloroisocyanuric acid and its sodium salt, sodium dichloroisocyanurate, are used as disinfectants for water (e.g. for swimming pools).

See also

• Trichloroisocyanuric acid
• Berthelot reaction

Individual evidence

1. ↑ ^{a b c d e} Entry on dichloroisocyanuric acid in the GESTIS substance database of the IFA , accessed on February 21, 2017(JavaScript required) .
2. ↑ Entry on dichloro-1,3,5-triazinetrione in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
3. ↑ Data sheet Dichloroisocyanuric acid sodium salt dihydrate (PDF) from Merck , accessed on September 5, 2012.
4. ^ Klaus Huthmacher, Dieter Most: Cyanuric Acid and Cyanuric Chloride . Ullmann's Encyclopedia of Industrial Chemistry. 2005, Wiley-VCH, Weinheim. ISBN 3-527-31097-5 , doi : 10.1002 / 14356007.a08_191 .