2,4-DICHLOROTOLUENE (ICSC)

2,4-DICHLOROTOLUENE	ICSC: 1727

Date of Peer Review: March 2009

2,4-Dichloro-1-methylbenzene
Benzene, 2,4-dichloro-1-methyl-
Toluene, 2,4-dichloro-

CAS #	95-73-8	C₇H₆Cl₂
RTECS #	XT0730000	Molecular mass: 161.0
UN #	3082
EC/EINECS #	202-445-8

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Carbon dioxide, powder, water spray.
EXPLOSION	Above 87°C explosive vapour/air mixtures may be formed.	Above 87°C use a closed system, ventilation.

EXPOSURE	See NOTES.
Inhalation		Ventilation, local exhaust, or breathing protection.	Fresh air, rest.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes		Safety goggles.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Remove vapour with fine water spray.

EMERGENCY RESPONSE

STORAGE

Provision to contain effluent from fire extinguishing. Separated from strong bases, strong oxidants. Cool. Keep in a well-ventilated room. Store in an area without drain or sewer access.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities Š IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK

2,4-DICHLOROTOLUENE

ICSC: 1727

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
As a result of flow, agitation, etc., electrostatic charges can be generated.

CHEMICAL DANGERS:
The substance decomposes on heating producing carbon monoxide, chlorine, hydrogen chloride and vinyl chloride. Reacts violently with strong oxidants and strong bases.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established. MAK not established.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is mildly irritating to the skin.

PHYSICAL PROPERTIES

Boiling point at 101.3kPa: 200°C
Melting point: -13.5°C
Density: 1.25 g/cmł
Solubility in water, g/100 ml at 20°C: (very poor).
Vapour pressure, kPa at 50°C: 0.4
Relative vapour density (air = 1): 5.56

Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02
Flashpoint: 87°C c.c.
Explosive limits, vol% in air: 1.9-4.5
Octanol/water partition coefficient as log Pow: 4.24

ENVIRONMENTAL DATA

The substance is toxic to aquatic organisms. It is strongly advised that this substance does not enter the environment.

NOTES

Health effects of exposure to the substance have not been investigated adequately.

ADDITIONAL INFORMATION

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

Š IPCS, CEC 2005

    See Also:
       Toxicological Abbreviations