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IOXYNIL
ICSC: 0900
Peer-Review Status: 10.08.1997 Validated
3,5-Diiodo-4-hydroxybenzonitrile
4-Hydroxy-3,5-diiodobenzonitrile
4-Cyano-2,6-diiodophenol 
CAS #: 1689-83-4 RTECS #: DI4025000
UN #: 2588
EC #: 608-007-00-6
EINECS #: 216-881-1
    Formula: C7H3I2NO
Molecular mass: 370.9

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.   
 
EXPOSURE   STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Dizziness. Headache. Sweating. Vomiting. Weakness. Fever.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Pain. Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Pain. Redness.  Wear safety goggles or face shield.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs.
Marine pollutant. 
EC Classification
Symbol: T, N; R: 21-23/25-36-48/22-63-50/53; S: (1/2)-36/37-45-60-61-63 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT7-III.
NFPA Code: H2; F1; R0. 
Provision to contain effluent from fire extinguishing. Separated from strong oxidants and food and feedstuffs. 

IMPORTANT DATA
Physical State; Appearance
ODOURLESS COLOURLESS CRYSTALS. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Decomposes on burning. This produces toxic fumes including nitrogen oxides, iodine and cyanide compounds. 

Occupational exposure limits
TLV (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 at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
The substance is mildly irritating to the eyes and skin. 

Effects of long-term or repeated exposure
Animal tests show that this substance possibly causes malformations in human babies. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 212-213°C
Solubility in water: none
Vapour pressure, Pa at 20°C: <0.001
Octanol/water partition coefficient as log Pow: 3.51  
The substance is toxic to aquatic organisms. Avoid release to the environment in circumstances different to normal use. 

NOTES
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Actril, Bentrol, Certol, Iotril, Toxynil are trade names.
Card has been partly updated in October 2004.
See sections Occupational Exposure Limits, EU classification, Emergency Response. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations