ICSC 0263 - 1,2-DIPHENYLHYDRAZINE

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1,2-DIPHENYLHYDRAZINE	ICSC: 0263 (April 2005)
Hydrazobenzene Diphenylhydrazine N,N'-Bianiline

CAS #: 122-66-7

EC Number: 204-563-5

	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, powder, foam, carbon dioxide.

See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE. AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough.	Use 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 safety spectacles 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. 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.	According to UN GHS Criteria Transportation UN Classification
STORAGE
Separated from food and feedstuffs. Store in an area without drain or sewer access.
PACKAGING
Do not transport with food and feedstuffs.

1,2-DIPHENYLHYDRAZINE

ICSC: 0263

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE-TO-YELLOW CRYSTALS. Physical dangers Chemical dangers Decomposes on burning. This produces toxic fumes including nitrogen oxides. Reacts with mineral acids. This produces benzidine (see ICSC 0224).	Formula: C₁₂H₁₂N₂ / C₆H₅NHNHC₆H₅ Molecular mass: 184.3 Decomposes at 125-131°C Density: 1.16 g/cm³ Solubility in water, g/100ml at 20°C: <0.1 (poor) Octanol/water partition coefficient as log Pow: 2.94

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE-TO-YELLOW CRYSTALS.

Physical dangers

Chemical dangers
Decomposes on burning. This produces toxic fumes including nitrogen oxides. Reacts with mineral acids. This produces benzidine (see ICSC 0224).

Formula: C₁₂H₁₂N₂ / C₆H₅NHNHC₆H₅
Molecular mass: 184.3
Decomposes at 125-131°C
Density: 1.16 g/cm³
Solubility in water, g/100ml at 20°C: <0.1 (poor)
Octanol/water partition coefficient as log Pow: 2.94

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure May cause mechanical irritation.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed. 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 and by ingestion.

Effects of short-term exposure
May cause mechanical irritation.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed.

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

OCCUPATIONAL EXPOSURE LIMITS
MAK: carcinogen category: 2

ENVIRONMENT
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish.

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

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 45-22-50/53; S: 53-45-60-61; Note: E

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