Acetic chloride
Ethanoyl chloride
Acetic acid chloride
CH3COCl / C2ClH3O
Molecular mass: 78.5
ICSC # 0210
CAS # 75-36-5
RTECS # AO6390000
UN # 1717
EC # 607-011-00-5
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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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Highly flammable.
Many reactions may cause fire or explosion.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames, NO sparks, and NO smoking.
NO contact with hot surfaces.
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Powder, carbon dioxide.
NO hydrous agents.
NO water.
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Explosion
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Vapour/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
Prevent build-up of electrostatic charges (e.g., by grounding).
Do NOT use compressed air for filling, discharging, or handling.
Use non-sparking handtools.
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In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water.
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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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Burning sensation.
Cough.
Shortness of breath.
Sore throat.
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Breathing protection.
Closed system and ventilation.
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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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Dry skin.
Redness.
Serious skin burns.
Burning sensation.
Pain.
Blisters.
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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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Redness.
Pain.
Severe deep burns.
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Safety spectacles,
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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Abdominal pain.
Burning sensation.
Cough.
Shortness of breath.
Sore throat.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Give nothing to drink.
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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Evacuate danger area!
Consult an expert!
Collect leaking liquid in sealable containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Do NOT wash away into sewer.
Personal protection: complete protective clothing including self-contained breathing apparatus.
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Fireproof.
Separated from
incompatible materials
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See Chemical Dangers.
Dry.
Well closed.
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Airtight.
Unbreakable packaging; put breakable packaging into closed unbreakable container.
F symbol
C symbol
R: 11-14-34
S: 1/2-9-16-26-45
UN Hazard Class: 3
UN Subsidiary Risks: 8
UN Packing Group: II
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Important Data
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Physical State; Appearance:
COLOURLESS
FUMING LIQUID
, WITH PUNGENT ODOUR.
Physical Dangers:
The vapour is heavier than air
and may travel along the ground; distant ignition possible.
Chemical Dangers:
The substance decomposes
on heating
and
on burning
producing toxic and corrosive fumesincludinghydrogen chloride (see ICSC 0163),phosgene (see ICSC 0007).
Reacts violently withwater,alcohols,acids,bases,certain powdered metals and many other compounds
causing fire and explosion hazard.
Attacks many metals in presence of water.
Products of hydrolysis in water include corrosive hydrochloric acid and acetic acid.
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 of its vapour
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The vapour
is irritating to
the eyes
and
the respiratory tract
.
The substance
is corrosive to
the eyes
and
the skin.
Corrosive on ingestion.
Inhalation of the vapour may cause lung oedema (see Notes).
Exposure may result in unconsciousness.
The effects may be delayed.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
Lungs may be affected by inhalation of high concentrations of the vapour.
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Physical
Properties
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Boiling point: 51°C
Melting point: -112°C
Relative density (water = 1): 1.11
Solubility in water:
reaction
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Vapour pressure, kPa at 20°C: 32
Relative vapour density (air = 1): 2.7
Flash point: 5°C c.c.
Auto-ignition temperature: 390°C
Explosive limits, vol% in air: 7.3-19
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Environmental
Data
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This substance may be hazardous to the environment; special attention should be given to water.
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N O T E S
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Reacts violently with fire extinguishing agents such as hydrous agents (water, foam).
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 are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Do NOT use in the vicinity of a fire or a hot surface, or during welding.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-30S1717
NFPA Code: H3; F3; R2; W
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ADDITIONAL INFORMATION
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ICSC: 0210
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ACETYL CHLORIDE
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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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