Ethyl 4,4'-dichlorobenzilate
Benzilic acid, 4,4'-dichloro-, ethyl ester
Ethyl 2-hydroxy-2,2-bis(4-chlorophenyl)acetate
C16H14Cl2O3
Molecular mass: 325.2
ICSC # 0749
CAS # 510-15-6
RTECS # DD2275000
EC # 607-159-00-0
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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.
Gives off irritating or toxic fumes (or gases) in a fire.
Liquid formulations containing organic solvents may be flammable.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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Inhalation
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Cough.
Sore throat.
Dizziness.
Headache.
Weakness.
Muscle pain.
Loss of movement co-ordination.
Fever or elevated body temperature.
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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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Redness.
Pain.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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Eyes
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Redness.
Pain.
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Safety spectacles,
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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Nausea.
Vomiting.
Abdominal pain.
Diarrhoea.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
Do NOT induce vomiting.
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 covered containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
(Extra personal protection: P2 filter respirator for harmful particles.)
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Separated from
food and feedstuffs
,
strong oxidants,
bases
and
strong acids.
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Do not transport with food and feedstuffs.
Xn symbol
N symbol
R: 22-50/53
S: 2-60-61
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Important Data
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Physical State; Appearance:
COLOURLESS OR PALE YELLOW CRYSTALS
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Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
toxic and corrosive fumes
.
Reacts
with
strong acids
,
bases
and
strong oxidants
,
causing fire hazard.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
and
the skin
.
The substance may cause effects on the
central nervous system
, resulting in
impaired functions
.
Effects of Long-Term or Repeated Exposure:
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Physical Properties
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Melting point: 37°C
Density: 1.28
g/cm3
Solubility in water: very poor
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Vapour pressure, Pa at 20°C: negligible
Flash point: see Notes
Octanol/water partition coefficient as log Pow: 4.74
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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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The substance is combustible but no flash point is available in literature.
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
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ADDITIONAL INFORMATION
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ICSC: 0749
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CHLOROBENZILATE
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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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