Perchlorobenzene
HCB
Pentachlorophenylchloride
Phenyl perchloryl
C6Cl6
Molecular mass: 284.8
ICSC # 0895
CAS # 118-74-1
RTECS # DA2975000
UN # 2729
EC # 602-065-00-6
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Water spray,
foam,
powder,
carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
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•Inhalation
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
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Protective gloves.
Protective clothing.
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Rinse and then wash skin with water and soap.
Refer for medical attention.
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•Eyes
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Face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into sealable containers.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
Personal protection: P3 filter respirator for toxic particles.
Chemical protection suit.
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Separated from
food and feedstuffs
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Well closed.
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Do not transport with food and feedstuffs.
Note: E
T symbol
N symbol
R: 45-48/25-50/53
S: 53-45-60-61
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS
TO WHITE
SOLID IN VARIOUS FORMS.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing toxic fumes.
Occupational Exposure Limits:
TLV: 0.002 mg/m3 as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2004).
MAK: skin absorption (H);
Carcinogen category: 4; Pregnancy risk group: D;
(DFG 2004).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol,
through the skin
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the
liver
and
nervous system
, resulting 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.
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Physical
Properties
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Boiling point: 323-326°C
Melting point: 231°C
Density: 1.21
g/cm3
Solubility in water, g/100 ml at 20°C: 0.0000005
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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
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Environmental
Data
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The substance is very toxic to aquatic organisms.
Bioaccumulation of this chemical may occur specifically in plants and in 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 given to avoid any additional release, e.g. through inappropriate disposal.
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N O T E S
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Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT take working clothes home.
Amatin, Anticarie, Bunt-cure, No Bunt 80, Bunt-no-more (Dow chemicals), Co-op-hexa (Bayer chemicals), Sanocide, Snieciotox are trade names.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-61GT2-III
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ADDITIONAL INFORMATION
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ICSC: 0895
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HEXACHLOROBENZENE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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