m-Dichlorobenzene

  • 1,3-Dichlorobenzene
Formula
C6H4Cl2
Structure
Description
Colorless liquid.
Uses
Fumigant & insecticide.

Registry Numbers and Inventories.
CAS
541-73-1
EC (EINECS/ELINCS)
208-792-1
EC Index Number
602-067-00-7
EC Class
Harmful; Dangerous for the Environment
R 22 51/53
RTECS
CZ4499000
RTECS class
Tumorigen; Mutagen
UN (DOT)
1591
Merck
13,3080
Beilstein/Gmelin
956618
Beilstein Reference
4-05-00=00657
RCRA
U071
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H4Cl2
Formula mass
147.00
Melting point, °C
-25
Boiling point, °C
173
Vapor pressure, mmHg
2 (25 C)
Vapor density (air=1)
5.08
Critical temperature
415.3
Critical pressure
48
Density
1.2884 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
1.044 cp at 25C
Surface tension
36.20 g/s2
Refractive index
1.5459 (20 C)
Partition coefficient, pKow
3.53
Heat of fusion
12.98 kJ/mol
Heat of vaporization
48.6 kJ/mol
Heat of combustion
-2958 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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
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
Avoid runoff into storm sewers and ditches which lead to waterways. Remove all sources of ignition. Provide ventilation. Cover with dry earth, dry sand, or other non-combustible material followed with plastic sheet to minimize spreading and contact with water. Stop leak only if you can do so without risk.
Disposal code
2
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, aluminum.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
65
Autoignition, °C
> 500
Upper exp. limit, %
7.8
Lower exp. limit, %
1.8
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Combustible Liquid. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Moderately flammable. Does not ignite readily.
Hazards
Containers may explode when heated.
Combustion products
Irritating vapors including hydrogen chloride are produced.
Health
2
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
4 (Substances and products that must be considered harmful)
Exposure effects
Chronic exposure may cause liver damage. Chronic exposure may cause kidney damage.
   Ingestion
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes skin irritation. May be absorbed through the skin.
   Eyes
Causes eye irritation.

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
Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   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.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1591
Response guide
Hazard class
6.1
Packing Group
III
 
USCG CHRIS Code
DBM
 
36 Halogenated hydrocarbons
HS Code
2903 69 90
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
S/P