International Chemical Safety Cards

DICHLOBENIL ICSC: 0867
DICHLOBENIL
2,6-Dichlorobenzonitrile
DBN
C7H3Cl2N / C6H3Cl2(CN)
Molecular mass: 172.0
CAS # 1194-65-6
RTECS # DI3500000
ICSC # 0867
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: all extinguishing agents allowed.
EXPLOSION


 
EXPOSURE
AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

INHALATION
Local exhaust.
Fresh air, rest.
SKIN MAY BE ABSORBED! Dry skin.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
EYES
Safety spectacles.
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. Wash hands before eating.
Rinse mouth.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place (extra personal protection: P2 filter respirator for harmful particles).
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs.
Do not transport with food and feedstuffs.
Xn symbol
R: 21
S: (2-)36/37
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0867 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

DICHLOBENIL ICSC: 0867

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PHYSICAL STATE; APPEARANCE:
WHITE TO OFF-WHITE CRYSTALS , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing toxic and corrosive fumes including hydrogen chloride, hydrogen cyanide, nitrogen oxides and phosgene. Reacts with strong bases to form 2,6-Dichlorobenzamide.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

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:


EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis.
PHYSICAL
PROPERTIES
 Boiling point: 270°C
Melting point: 145-146°C (pure)
Solubility in water, g/100 ml at 20°C: none		 Vapour pressure, Pa at 20°C: 0.073
Octanol/water partition coefficient as log Pow: 2.64
ENVIRONMENTAL
DATA
 The substance is toxic to aquatic organisms.
N O T E S
Dichlobenil is a major metabolite of Chlorthiamid. Other melting points: 139-145°C (technical). Casoron, Decabane, Prefix D, Dyclomec, Niagara 5006, Norosac are trade names. Also consult ICSC # 0852 (Chlorthiamide).
ADDITIONAL INFORMATION


ICSC: 0867 DICHLOBENIL
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or 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. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.