ICSC 0895 - HEXACHLOROBENZENE

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HEXACHLOROBENZENE	ICSC: 0895 (March 1999)
Perchlorobenzene HCB Pentachlorophenylchloride Phenyl perchloryl

CAS #: 118-74-1

UN #: 2729

EC Number: 204-273-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible.	NO open flames.	Use water spray, foam, powder, carbon dioxide.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation		Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED!	Protective gloves. Protective clothing.	Rinse and then wash skin with water and soap. Refer for medical attention .
Eyes		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.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Separated from food and feedstuffs. Well closed.
PACKAGING
Do not transport with food and feedstuffs.

HEXACHLOROBENZENE

ICSC: 0895

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-WHITE SOLID IN VARIOUS FORMS. Physical dangers Chemical dangers Decomposes on heating. This produces toxic fumes.	Formula: C₆Cl₆ Molecular mass: 284.8 Boiling point: 323-326°C Melting point: 231°C Density: 1.21 g/cm³ Solubility in water, g/100ml at 20°C: 0.0000005 Vapour pressure, Pa at 20°C: 0.001 Relative vapour density (air = 1): 9.8 Flash point: 242°C c.c. Octanol/water partition coefficient as log Pow: 5.5/6.2

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE SOLID IN VARIOUS FORMS.

Physical dangers

Chemical dangers
Decomposes on heating. This produces toxic fumes.

Formula: C₆Cl₆
Molecular mass: 284.8
Boiling point: 323-326°C
Melting point: 231°C
Density: 1.21 g/cm³
Solubility in water, g/100ml at 20°C: 0.0000005
Vapour pressure, Pa at 20°C: 0.001
Relative vapour density (air = 1): 9.8
Flash point: 242°C c.c.
Octanol/water partition coefficient as log Pow: 5.5/6.2

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying. Effects of long-term or repeated exposure The substance may have effects on the liver and nervous system. This may result in impaired functions of organs and skin lesions. This substance is possibly carcinogenic to humans. Animal tests show that this substance possibly causes toxic effects upon human reproduction.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying.

Effects of long-term or repeated exposure
The substance may have effects on the liver and nervous system. This may result in impaired functions of organs and skin lesions. This substance is possibly carcinogenic to humans. Animal tests show that this substance possibly causes toxic effects upon human reproduction.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.002 mg/m³, as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans). MAK: skin absorption (H); carcinogen category: 4; pregnancy risk group: D

ENVIRONMENT
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in plants and fish. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.

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

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 45-48/25-50/53; S: 53-45-60-61; Note: E

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