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Disinfectant
Sodium dichloroisocyanurate
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Sodium dichloroisocyanurate

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Sodium dichloroisocyanurate
Sodium dichloroisocyanurate structure.svg
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
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.018.880
PubChem CID
RTECS number
  • XZ1900000
UNII
  • 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 checkY
    Key: MSFGZHUJTJBYFA-UHFFFAOYSA-M checkY
  • 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
  • [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O
Properties
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)
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):
(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).
☒N verify (what is checkY☒N ?)

Sodium dichloroisocyanurate (INN: sodium troclosene, troclosenum natricum or NaDCC or SDIC) is a chemical compound widely used as a cleansing agent and disinfectant. 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 .

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

See also


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