Sodium dichloroisocyanurate

Sodium dichloroisocyanurate
Names
	IUPAC name Sodium 3,5-dichloro-2,4,6-trioxo-1,3,5-triazinan-1-ide
	Other names Sodium dichloroisocyanurate, Sodium troclosene, Sodic troclosene
Identifiers
CAS Number	2893-78-9 ; 51580-86-0 (dihydrate) ;
3D model (JSmol)	Interactive image;
ChemSpider	451165 ;
ECHA InfoCard	100.018.880
PubChem CID	517121;
RTECS number	XZ1900000;
UNII	07M9U9U0LK ; 8027SYQ9X3 (dihydrate) ;
UN number	2465 or 3077
CompTox Dashboard (EPA)	DTXSID3024994 ;
	InChI InChI=1S/C3HCl2N3O3.Na/c4-7-1(9)6-2(10)8(5)3(7)11;/h(H,6,9,10);/q;+1/p-1 Key: MSFGZHUJTJBYFA-UHFFFAOYSA-M ; InChI=1S/C3HCl2N3O3.Na/c4-7-1(9)6-2(10)8(5)3(7)11;/h(H,6,9,10);/q;+1/p-1 Key: MSFGZHUJTJBYFA-REWHXWOFAV; Key: MSFGZHUJTJBYFA-UHFFFAOYSA-M;
	SMILES [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O;
Properties
Chemical formula	C3Cl2N3NaO3
Molar mass	219.95 g/mol (anhydrous); 255.98 g/mol (dihydrate)
Appearance	white, crystalline powder
Odor	chlorine-like
Density	0.7 g/cm3 (as granules)
Melting point	225 °C (437 °F; 498 K)
Solubility in water	22.7 g/100 mL (25 °C)
Solubility in acetone	0.5 g/100 mL (30 °C)
Acidity (pKa)	6.2-6.8
Hazards
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	(Rat oral) 1670 mg/kg
Related compounds
Other cations	Potassium dichloroisocyanurate; Calcium dichloroisocyanurate; Lithium dichloroisocyanurate; Barium dichloroisocyanurate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Sodium dichloroisocyanurate (INN: sodium troclosene, troclosenum natricum or NaDCC or SDIC) is a chemical compound widely used as a cleansing agent and disinfectant.^[1] It is a colorless, water-soluble solid, produced as a result of reaction of cyanuric acid with chlorine. The dihydrate is also known (51580-86-0 ) as is the potassium salt (2244-21-5 ).

Uses

It is mainly used as a disinfectant, biocide and industrial deodorant. It is found in some modern water purification tablets/filters. It is more efficient than the formerly used halazone water disinfectant. In these applications, it is a slow-release source of chlorine in low concentrations at a relatively constant rate. As a disinfectant, it is used to sterilize drinking water, swimming pools, tableware and air, and to fight against infectious diseases as a routine disinfection agent.

It can be used for disinfection and environmental sterilization, for example in livestock, poultry, fish and silkworm raising, for bleaching textiles, for cleaning industrial circulating water, and to prevent wool from shrinking.

The reaction between NaDCC and a dilute solution of copper (II) sulfate produces an intense lilac precipitate of the complex salt sodium copper dichloroisocyanurate. The reactions between dichloroisocyanurate salts (Na, K, Li, Ba, Ca) and transition metal salts (Ni, Cu, Cd) are described in patent US 3,055,889. The overall reaction is:

CuSO₄ + 4 Na(C₃N₃O₃Cl₂) → Na₂[Cu(C₃N₃O₃Cl₂)₄] + Na₂SO₄

Sodium dichloroisocyanurate reacts with concentrated (130 vol, 35%) hydrogen peroxide to create singlet oxygen which emits red light upon decomposition . ^[2]

It is considered hazardous according to OSHA 29 CFR 1910.1200. High level exposure can cause reactive airways dysfunction syndrome (RADS) ^[3]

References

^ Huthmacher, Klaus; Most, Dieter (2000). "Cyanuric Acid and Cyanuric Chloride". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_191. ISBN 3-527-30673-0..
^ [Acc. Chem. Res. 2006, 39, 11, 797–804]
^ "Sodium dichloroisocyanurate - Material Safety Data Sheet" (PDF). September 30, 2009.

[Ullmann-1] Huthmacher, Klaus; Most, Dieter (2000). "Cyanuric Acid and Cyanuric Chloride". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_191. ISBN 3-527-30673-0..

[2] [Acc. Chem. Res. 2006, 39, 11, 797–804]

[3] "Sodium dichloroisocyanurate - Material Safety Data Sheet" (PDF). September 30, 2009.

[1]

[2]

[3]

Uses

See also

References