Trichloroethanoic acid
Aceto-caustin
TCA
C2HCl3O2 / CCl3COOH
Molecular mass: 163.4
ICSC # 0586
CAS # 76-03-9
RTECS # AJ7875000
UN # 1839
EC # 607-004-00-7
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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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Not combustible.
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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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Sore throat.
Cough.
Burning sensation.
Headache.
Nausea.
Vomiting.
Shortness of breath.
Laboured breathing.
Symptoms may be delayed (see Notes).
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Ventilation (not if powder), local exhaust, or breathing protection.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Pain.
Redness.
Blisters.
Skin burns.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Pain.
Redness.
Severe deep burns.
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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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Burning sensation.
Abdominal pain.
Shock or collapse.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Give plenty of water to drink.
Rest.
Refer for medical attention.
See Notes.
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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 water filled containers; if appropriate, moisten first to prevent dusting.
Cautiously neutralize remainder with alkali such as sodium bicarbonate, sodium hydroxide.
Then wash away with plenty of water.
Personal protection: complete protective clothing including self-contained breathing apparatus.
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Separated from
food and feedstuffs
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See Chemical Dangers.
Cool.
Dry.
Well closed.
Keep in a well-ventilated room.
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Unbreakable packaging; put breakable packaging into closed unbreakable container.
C symbol
N symbol
R: 35-50/53
S: 1/2-26-36/37/39-45-60-61
UN Hazard Class: 8
UN Packing Group: II
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Important Data
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Physical State; Appearance:
COLOURLESS
HYGROSCOPIC
CRYSTALS
, WITH PUNGENT ODOUR.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing toxic and corrosive fumes including hydrogen chloride and chloroform.
The solution in water is a strong acid, it reacts violently with bases and is corrosive to many metals.
Occupational Exposure Limits:
TLV: 1 ppm as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2005).
MAK: IIb (not established but data is available); (DFG 2005).
OSHA PEL: none
NIOSH REL: TWA 1 ppm (7 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is corrosive to
the eyes,
the skin
and
the respiratory tract.
Corrosive on ingestion.
Inhalation of vapour may cause lung oedema (see Notes).
The effects may be delayed.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 198°C
Melting point: 58°C
Density: 1.6
g/cm3
Solubility in water:
very good
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Vapour pressure, Pa at 51°C: 133
Relative vapour density (air = 1): 5.6
Octanol/water partition coefficient as log Pow: 1.7
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Environmental
Data
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N O T E S
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The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-80GC4-II+III
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ADDITIONAL INFORMATION
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ICSC: 0586
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TRICHLOROACETIC ACID
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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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