ICSC 1582 - o-DIANISIDINE

o-DIANISIDINE	ICSC: 1582 (April 2005)
3,3´-Dianisidine 3,3´-Dimethoxy-4,4'-diaminobiphenyl C.I. Disperse Black 6 3,3´-Dimethoxybenzidine

CAS #: 119-90-4

UN #: 2431

EC Number: 204-355-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Use water spray, dry powder, carbon dioxide.

See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE. AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough.	Use ventilation (not if powder), local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion		Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Personal protection: chemical protection suit. Vacuum spilled material with specialist equipment.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Separated from oxidants and food and feedstuffs. Well closed.
PACKAGING
Do not transport with food and feedstuffs.

o-DIANISIDINE

ICSC: 1582

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS. Physical dangers The vapour is heavier than air and may travel along the ground; distant ignition possible. Chemical dangers Decomposes on burning. This produces toxic fumes including nitrogen oxides. Reacts with oxidants.	Formula: C₁₄H₁₆N₂O₂ Molecular mass: 244.3 Melting point: 137.5°C Solubility in water, g/100ml at 25°C: 0.006 Vapour pressure: negligible Flash point: 206°C c.c. Octanol/water partition coefficient as log Pow: 1.81

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS.

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible.

Chemical dangers
Decomposes on burning. This produces toxic fumes including nitrogen oxides. Reacts with oxidants.

Formula: C₁₄H₁₆N₂O₂
Molecular mass: 244.3
Melting point: 137.5°C
Solubility in water, g/100ml at 25°C: 0.006
Vapour pressure: negligible
Flash point: 206°C c.c.
Octanol/water partition coefficient as log Pow: 1.81

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure	Inhalation risk A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered. Effects of long-term or repeated exposure This substance is probably carcinogenic to humans.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

Effects of short-term exposure

Inhalation risk
A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered.

Effects of long-term or repeated exposure
This substance is probably carcinogenic to humans.

OCCUPATIONAL EXPOSURE LIMITS
MAK: carcinogen category: 2

ENVIRONMENT

NOTES
Do NOT take working clothes home. Depending on the degree of exposure, periodic medical examination is suggested.

ADDITIONAL INFORMATION

EC Classification
Symbol: T; R: 45-22; S: 53-45; Note: E

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    See Also:
       Toxicological Abbreviations