ICSC 1583 - iso-PHTHALONITRILE

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iso-PHTHALONITRILE	ICSC: 1583 (April 2005)
1,3-Benzenedicarbonitrile Isophthalodinitrile m-Dicyanobenzene

CAS #: 626-17-5

UN #: 3276

EC Number: 210-933-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air.	NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	Use water spray, powder, foam, carbon dioxide. In case of fire: keep cylinder cool by spraying with water.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough.	Avoid inhalation of dust.	Fresh air, rest.
Skin			Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Diarrhoea.	Do not eat, drink, or smoke during work. Wash hands before eating.	Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Separated from strong oxidants and food and feedstuffs.
PACKAGING
Do not transport with food and feedstuffs.

iso-PHTHALONITRILE

ICSC: 1583

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-WHITE CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Reacts with strong oxidants. Decomposes on heating. This produces toxic gases including hydrogen cyanide. On combustion, forms nitrogen oxides.	Formula: C₈H₄N₂ Molecular mass: 128.14 Sublimation point: >162°C Density: 1.3 g/cm³ Solubility in water, g/100ml at 20°C: 0.07 Vapour pressure: 1.33 Pa Relative vapour density (air = 1): 4.42 Flash point: >150°C Octanol/water partition coefficient as log Pow: 0.39

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR.

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

Chemical dangers
Reacts with strong oxidants. Decomposes on heating. This produces toxic gases including hydrogen cyanide. On combustion, forms nitrogen oxides.

Formula: C₈H₄N₂
Molecular mass: 128.14
Sublimation point: >162°C
Density: 1.3 g/cm³
Solubility in water, g/100ml at 20°C: 0.07
Vapour pressure: 1.33 Pa
Relative vapour density (air = 1): 4.42
Flash point: >150°C
Octanol/water partition coefficient as log Pow: 0.39

EXPOSURE & HEALTH EFFECTS
Routes of exposure Effects of short-term exposure The substance is irritating to the eyes.	Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure

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

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 mg/m³, as TWA

ENVIRONMENT

NOTES
Health effects of exposure to the substance have not been investigated adequately.

ADDITIONAL INFORMATION

EC Classification

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