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DICHLOBENIL ICSC: 0867
Date of Peer Review: April 2005

2,6-Dichlorobenzonitrile
DBN
2,6-Dichlorophenylcyanide
CAS # 1194-65-6 C7H3Cl2N / C6H3Cl2(CN)
RTECS # DI3500000 Molecular mass: 172.0
UN #
EC # 608-015-00-X
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE.


Inhalation Cough.
Ventilation (not if powder), local exhaust, or breathing protection.
Fresh air, rest.
Skin MAY BE ABSORBED!
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful particles. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place.
Do not transport with food and feedstuffs.
EU Classification
Symbol: Xn, N
R: 21-51/53
S: (2-)-36/37-61
UN Classification

EMERGENCY RESPONSE STORAGE

Provision to contain effluent from fire extinguishing. Separated from oxidants, food and feedstuffs. 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 IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
DICHLOBENIL ICSC: 0867
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE TO OFF-WHITE CRYSTALS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride. Reacts violently with oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin and by ingestion

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the skin, resulting in chloracne.
PHYSICAL PROPERTIES
Boiling point: 270C
Melting point: 145-146C
Density: 1.3 g/cm
Solubility in water: none
Vapour pressure, Pa at 20C: 0.073
Octanol/water partition coefficient as log Pow: 2.64
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
NOTES
Dichlobenil is a major metabolite of Chlorthiamid. Other melting points: 139-145C (technical). Casoron, Decabane, Prefix D, Cyclomec, Niagara 5006 and 5996, Norosac are trade names. See also ICSC0852 Chlorthiamid.
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
IPCS, CEC 1999