Pentachloronitrobenzene
PCNB
C6Cl5NO2
Molecular mass: 295.3
ICSC # 0745
CAS # 82-68-8
RTECS # DA6650000
UN # 3077
EC # 609-043-00-5
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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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Liquid formulations containing organic solvents may be flammable.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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STRICT HYGIENE!
AVOID Exposure OF ADOLESCENTS AND CHILDREN!
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•Inhalation
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Avoid inhalation of dust.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Safety spectacles.
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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.
Wash hands before eating.
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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 containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
Personal protection: P2 filter respirator for harmful particles.
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Provision to contain effluent from fire extinguishing.
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Xi symbol
N symbol
R: 43-50/53
S: 2-13-24-37-60-61
UN Hazard Class: 9
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS (PURE) TO PALE YELLOW (TECHNICAL) CRYSTALS
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
toxic and corrosive fumes
including
chloride fumes and
nitrogen oxides
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Occupational Exposure Limits:
TLV: 0.5 mg/m3 A4; (ACGIH 2004).
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol.
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the liver
, resulting in impaired functions.
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Physical
Properties
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Boiling point: 328°C
Melting point: 146°C
Density: 1.7
g/cm3
Solubility in water, g/100 ml at 20°C: 0.00004
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Vapour pressure, Pa at 20°C: 0.007
Relative vapour density (air = 1): 10.2
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Octanol/water partition coefficient as log Pow: 4.77
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Environmental
Data
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The substance is very toxic to aquatic organisms.
Bioaccumulation of this chemical may occur in fish.
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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If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s).
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-90GM7-III
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ADDITIONAL INFORMATION
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ICSC: 0745
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QUINTOZENE
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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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