ICSC 0254 - 1,2-DICHLORO-4-NITROBENZENE

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1,2-DICHLORO-4-NITROBENZENE	ICSC: 0254 (October 2008)
3,4-Dichloronitrobenzene 3,4-Dichloro-1-nitrobenzene 1-Nitro-3,4-dichlorobenzene

CAS #: 99-54-7

UN #: 1578

EC Number: 202-764-2

	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. Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.	Use powder, water spray, foam, carbon dioxide.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough.	Use ventilation (not if powder).	Fresh air, rest.
Skin		Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear safety spectacles.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment.	According to UN GHS Criteria WARNING Harmful if swallowed Toxic to aquatic life Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: II
STORAGE
Separated from strong oxidants, strong bases and food and feedstuffs. Provision to contain effluent from fire extinguishing.
PACKAGING
Do not transport with food and feedstuffs.

1,2-DICHLORO-4-NITROBENZENE

ICSC: 0254

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-TAN NEEDLE-LIKE CRYSTALS. Physical dangers Chemical dangers Decomposes on heating and on burning. This produces toxic fumes of nitrogen oxides and hydrogen chloride (see ICSC 0163). Reacts violently with oxidants and strong bases.	Formula: C₆H₃Cl₂NO₂ Molecular mass: 192.0 Boiling point: 255°C Melting point: 39-41°C Density (at 15°C): 1.56 g/cm³ Solubility in water: none Vapour pressure, Pa at 25°C: 2 Relative vapour density (air = 1): 6.6 Flash point: 124°C Auto-ignition temperature: 420°C Octanol/water partition coefficient as log Pow: 3.12

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-TAN NEEDLE-LIKE CRYSTALS.

Physical dangers

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes of nitrogen oxides and hydrogen chloride (see ICSC 0163). Reacts violently with oxidants and strong bases.

Formula: C₆H₃Cl₂NO₂
Molecular mass: 192.0
Boiling point: 255°C
Melting point: 39-41°C
Density (at 15°C): 1.56 g/cm³
Solubility in water: none
Vapour pressure, Pa at 25°C: 2
Relative vapour density (air = 1): 6.6
Flash point: 124°C
Auto-ignition temperature: 420°C
Octanol/water partition coefficient as log Pow: 3.12

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by ingestion. Effects of short-term exposure	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 long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion.

Effects of short-term exposure

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 long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
MAK: skin absorption (H); carcinogen category: 3

ENVIRONMENT
The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment.

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

ADDITIONAL INFORMATION

EC Classification

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