Sodium dichloroisocyanurate

Structural formula
General
Surname	Sodium dichloroisocyanurate
other names	3,5-dichloro-2-hydroxy-4,6- s- triazinedione sodium salt; Dichloro- s- triazinetrione sodium salt; Troclose sodium;
Molecular formula	C 3 Cl 2 N 3 NaO 3
Brief description	White dust
External identifiers / databases
EC number	220-767-7
ECHA InfoCard	100,018,880
PubChem	517121
Wikidata	Q2200179
properties
Molar mass	219.95 g mol −1
Physical state	firmly
density	1.97 g cm −3 (25 ° C)
Melting point	240–250 ° C (decomposition)
solubility	easily in water (350 g l −1 at 25 ° C)
safety instructions
H and P phrases	H: 272-302-314-410
	EUH: 031
	P: 210-273-280-303 + 361 + 353-304 + 340 + 310-305 + 351 + 338
Toxicological data	1420 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 .

Sodium dichloroisocyanurate is a chemical compound . It is the sodium salt of dichloroisocyanuric acid .

presentation

Sodium dichloroisocyanurate is obtained in a multi-stage process. First, urea is pyrolyzed to cyanuric acid . Purified (99%) cyanuric acid dihydrate reacts with elemental chlorine to form dichloroisocyanuric acid monohydrate (DCCA). This precipitates and is filtered off. The monohydrate is neutralized with sodium hydroxide to sodium dichloroisocyanuric acid dihydrate. The anhydrate can be obtained by heating.

properties

Sodium dichloroisocyanurate is a white powder with a pungent odor of chlorine that dissolves well in water. As a strong oxidizing agent , it reacts violently with flammable and reducing substances. When hydrolysed , it produces hypochlorous acid .

It forms a dihydrate.

use

Sodium dichloroisocyanurate is used in cleaning agents , disinfectants and bleaching agents .

It is widely used to disinfect swimming pools. In Germany it may only be used for drinking water treatment for the needs of the Bundeswehr and for civilian needs in the event of a defense or disaster.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry on sodium dichloroisocyanurate in the GESTIS substance database of the IFA , accessed on May 15, 2018(JavaScript required) .
↑ Entry on Troclosen Sodium in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 2, 2020. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ FAO - Chemical and Technical Assessment: SODIUM DICHLOROISOCYANURATE (NaDCC - anhydrous and dihydrate) .
↑ ^a ^b DIN EN 12932: 2008-10 Products for the treatment of water for human consumption - Products for emergencies - Sodium dichloroisocyanurate dihydrate (version of October 2008).
↑ External identifiers or database links for sodium dichloroisocyanurate dihydrate : CAS number: 51580-86-0, EC number: 610-700-3, ECHA InfoCard: 100.106.495 , GESTIS substance database : 500043 , PubChem : 23667638 , ChemSpider : 58879 , Wikidata : Q27269102 .
↑ Wolfgang Roeske: Drinking water disinfection: basics, processes, systems, devices, microbiology, chlorination, ozonation, UV radiation, membrane filtration, quality assurance . Oldenbourg Industrieverlag, 2007, ISBN 978-3-8356-3119-9 , p. 53 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry on sodium dichloroisocyanurate in the GESTIS substance database of the IFA , accessed on May 15, 2018(JavaScript required) .

[CLP_100.018.880-2] Entry on Troclosen Sodium in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 2, 2020. Manufacturers or distributors can expand the harmonized classification and labeling .

[3] FAO - Chemical and Technical Assessment: SODIUM DICHLOROISOCYANURATE (NaDCC - anhydrous and dihydrate) .

[din-4] DIN EN 12932: 2008-10 Products for the treatment of water for human consumption - Products for emergencies - Sodium dichloroisocyanurate dihydrate (version of October 2008).

[5] External identifiers or database links for sodium dichloroisocyanurate dihydrate : CAS number: 51580-86-0, EC number: 610-700-3, ECHA InfoCard: 100.106.495 , GESTIS substance database : 500043 , PubChem : 23667638 , ChemSpider : 58879 , Wikidata : Q27269102 .

[Wolfgang_Roeske-6] Wolfgang Roeske: Drinking water disinfection: basics, processes, systems, devices, microbiology, chlorination, ozonation, UV radiation, membrane filtration, quality assurance . Oldenbourg Industrieverlag, 2007, ISBN 978-3-8356-3119-9 , p. 53 ( limited preview in Google Book search).