Dichloroisocyanuric acid

  • 1,3-Dichloro-s-triazine-2,4,6-trione
  • 1,3-Dichloroisocyanuric Acid
  • Dichloro-1,3,5-triazinetrione
  • 1,3,5-triazine-2,4,6(1H,3H,5H)-trione,1,3-dichloro
  • Troclosene
  • Orced
Formula
C3HCl2N3O3
Structure
Description
Dichloroisocyanuric acid, solid is a white crystalline solid with an odor of chlorine.
Uses
In household dry bleaches, dishwashing compounds, scouring powders, & detergent sanitizers, replacement for calcium hypochlorite.

Registry Numbers and Inventories.
CAS
2782-57-2
EC (EINECS/ELINCS)
220-487-5
EC Index Number
613-029-00-4
EC Class
Oxidising; Harmful; Contact with acids liberates toxic gas; Irritant; Dangerous for the Environment
RTECS
XZ1845000
RTECS class
Agricultural Chemical and Pesticide; Human Data; Primary Irritant
UN (DOT)
2465
Beilstein/Gmelin
612589
EPA OPP
81401
Swiss Giftliste 1
G-4516
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C3HCl2N3O3
Formula mass
197.97
Melting point, °C
235 - 236
Boiling point, °C
418
Critical temperature
680
Critical pressure
58.4
Density
0.55 g/cm3
Solubility in water
Very soluble
pKa/pKb
2.34 (pKa)
Partition coefficient, pKow
0.34

Hazards and Protection.
Storage
Keep in a cool, dry location in a tightly sealed container.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.
Stability
No data.
Incompatibilities
Keep away from reducing agents and combustible materials.

Fire.
Fire fighting
Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
These substances will accelerate burning when involved in a fire.
Hazards
May decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
 
Special
O

Health.
Poison_Class
4
Exposure effects
   Ingestion
Significant burns or strictures of the gastrointestinal tract are unusual following ingestion of household bleach. Vomiting is common after hypochlorite ingestions or inhalation of chlorine or chloramine gas. Hematemesis may develop after large ingestions.
   Inhalation
Edema of the glottis as well as pulmonary edema may occur. Chloramine and chlorine gas inhalation result in coughing, choking, and dyspnea. Chemical pneumonitis, pulmonary edema and respiratory failure can occur following severe gas exposure. Mild exposures resolve with no therapy. Pneumomediastinum has been reported with chlorine gas inhalation.
   Skin
Dermal irritation and hypersensitivity have been reported with chlorine active compounds. Small volumes of sodium hypochlorite injected iv have produced erythema at the site of injection.
   Eyes
See Skin.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
2465
Response guide
Hazard class
5.1
Packing Group
II
 
Std. Transport #
4918724 4918420 4918430 4918435