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NIOSH

DICHLOBENIL

ICSC: 0867

2,6-Dichlorobenzonitrile
DBN
2,6-Dichlorophenylcyanide
C7H3Cl2N / C6H3Cl2(CN)
Molecular mass: 172.0
ICSC # 0867 		CAS # 1194-65-6
RTECS # DI3500000
EC # 608-015-00-X
April 18, 2005 Validated

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

STORAGE

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.
Provision to contain effluent from fire extinguishing. Separated from oxidants, food and feedstuffs . Store in an area without drain or sewer access.
Do not transport with food and feedstuffs.
Xn symbol
N symbol
R: 21-51/53
S: 2-36/37-61
ICSC: 0867 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

DICHLOBENIL

ICSC: 0867

I

M

P

O

R

T

A

N

T


D

A

T

A

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

PHYSICAL DANGERS:


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 SHORT-TERM EXPOSURE:


EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the skin , resulting in chloracne.

PHYSICAL
PROPERTIES

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

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.

N O T E S

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.

ADDITIONAL INFORMATION



ICSC: 0867 DICHLOBENIL
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, 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. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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