ICSC 0867 - DICHLOBENIL

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DICHLOBENIL

ICSC: 0867
_{April 2005}

2,6-Dichlorobenzonitrile
DBN
2,6-Dichlorophenylcyanide

CAS No: 1194-65-6
RTECS No: DI3500000
EC No: 608-015-00-X

C₇H₃Cl₂N / C₆H₃Cl₂(CN)
Molecular mass: 172.0

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.	Xn Symbol N Symbol R: 21-51/53 S: (2-)36/37-61	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
	Provision to contain effluent from fire extinguishing. Separated from oxidants, food and feedstuffs. Store in an area without drain or sewer access.

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	ENVIRONMENTAL DATA
Boiling point: 270°C Melting point: 145-146°C Density: 1.3 g/cm³ Solubility in water: none Vapour pressure, Pa at 20°C: 0.073 Octanol/water partition coefficient as log Pow: 2.64	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: 139-145°C (technical).
Casoron, Decabane, Prefix D, Cyclomec, Niagara 5006 and 5996, Norosac are trade names.
See also ICSC0852 Chlorthiamid.

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International
Programme on
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© IPCS 2004

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