Hexachloroacetone

  • Hexachloropropanone
Formula
CCl3COCCl3
Structure
Description
A yellow-colored liquid.
Uses
Reagent for n-trichloroacetylation of dipeptides under neutral conditions, herbicide.

Registry Numbers and Inventories.
CAS
116-16-5
EC (EINECS/ELINCS)
204-129-5
EC Index Number
606-032-00-7
EC Class
Harmful; Dangerous for the Environment
R 22 51/53
S 24/25 61
RTECS
UC2100000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
UN (DOT)
2661
Beilstein/Gmelin
1707475
Beilstein Reference
4-01-00-03223
EPA OPP
43701
Swiss Giftliste 1
G-4050
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C3Cl6O
Formula mass
264.75
Melting point, °C
-3
Boiling point, °C
204
Vapor pressure, mmHg
0.4
Vapor density (air=1)
9.2
Critical temperature
444
Critical pressure
37.3
Density
1.744 g/cm3 (12 C)
Solubility in water
Slightly soluble
Refractive index
1.5115 (20 C)
Partition coefficient, pKow
3.490

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation.
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 prevent skin exposure.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation.
Disposal code
2
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents.
Decomposition
Hydrogen chloride, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
>110 (99% purity)
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Extinguishing media: Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
May burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Evolves phosgene when heated.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OEL-RUSSIA:STEL 0.5 mg/m3
Poison_Class
4
Exposure effects
   Ingestion
Harmful if swallowed. May cause irritation of the digestive tract.
   Inhalation
May cause respiratory tract irritation. Harmful if inhaled.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2661
Response guide
Hazard class
6.1
Packing Group
III
 
HS Code
2914 70 90
 
Std. Transport #
4925108