Cyanuric chloride

  • 2,4,6-Trichloro-1,3,5-triazine
  • Trichlorocyanidine
  • Chlorotriazine
Formula
C3Cl3N3
Structure
Description
Colorless or white crystals with a sharp, unpleasant odor, lachrymator.
Uses
Intermediate in synthesis of chemicals & insecticides.

Registry Numbers and Inventories.
CAS
108-77-0
EC (EINECS/ELINCS)
203-614-9
EC Index Number
613-009-00-5
EC Class
Irritant
R 36/37/38
RTECS
XZ1400000
RTECS class
Tumorigen; Primary Irritant
UN (DOT)
2670
Beilstein/Gmelin
124246
Beilstein Reference
5-26-01-00311
Swiss Giftliste 1
G-1453
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C3Cl3N3
Formula mass
184.41
Boiling point, °C
190
Vapor pressure, mmHg
0.8 (25 C)
Vapor density (air=1)
6.36
Saturation Concentration
79 ppm (593 mg/m3) at 20 C
Odor Threshold Odor threshold 0.019 mg/m33
Critical temperature
484
Critical pressure
57.3
Density
1.32 g/cm3
Solubility in water
Reacts
Partition coefficient, pKow
2.00
Heat of fusion
22.6 kJ/mol
Heat of vaporization
46.89 kJ/mol
Heat of combustion
-1346 kJ/mol

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Keep containers tightly closed.
Handling
Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale. Use with adequate ventilation. Discard contaminated shoes.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation. Do not get water inside containers.
Disposal code
3
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents.
Decomposition
Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
>214
Autoignition, °C
> 650
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Extinguishing media: For large fires, use water spray, fog, or alcohol-resistant foam. Do NOT get water inside containers. Do NOT use straight streams of water. For small fires, use dry chemical, dry sand, alcohol-resistant foam.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases. Reaction with water may generate much heat which will increase the concentration of fumes in the air. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
Combustion products
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Health
3
 
Flammability
0
 
 
Reactivity
1
 

Health.
Poison_Class
3
Exposure effects
May cause digestive tract disturbances.
   Ingestion
Harmful if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.
   Skin
May cause severe irritation and possible burns.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns. Lachrymator.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
2670
Response guide
Hazard class
8
Packing Group
II
 
HS Code
2933 69 80
 
Std. Transport #
4936506