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CAS Number: 79-04-9
Sum Formula: C2H2Cl2O
Molar Mass: 112.94 g/mol
German Synonyms: Chloressigsäurechlorid | Chloracetylchlorid
English Synonyms: Chloroacetyl chloride
EC Index Number: 607-080-00-1
EC Number: 201-171-6
Temperature Class: T1
Structural Formula Chloroacetyl chloride

Disclaimer: The CLP/GHS classification is not regularly updated in Chemsafe. For up-to-date information, please use the ECHA database. ( https://echa.europa.eu/en/information-on-chemicals )

GHS Hazard and Category:
  • Acute Tox. 3: acute toxicity by inhalation, category 3
  • Acute Tox. 3: acute dermal toxicity, category 3
  • Acute Tox. 3: acute oral toxicity, category 3
  • STOT RE 1: specific target organ toxicity following repeated exposure, category 1
  • Skin Corr. 1A: skin corrosion, category 1A
  • Aquatic Acute 1: acute hazards to the aquatic environment, category 1
GHS Pictogram:
pictogram toxic
pictogram health hazard
pictogram corrosive
pictogram environmental hazard





GHS Signal Word: Danger
GHS Hazard Statement:
  • H331: Toxic if inhaled.
  • H311: Toxic in contact with skin.
  • H301: Toxic if swallowed.
  • H372: Causes damage to organs through prolonged or repeated exposure .
  • H314: Causes severe skin burns and eye damage.
  • H400: Very toxic to aquatic life.
  • EUH014: Reacts violently with water.
  • EUH029: Contact with water liberates toxic gas.

Boiling point
1 1991 Physikalisch-Technische Bundesanstalt (PTB) 1013.25 hPa 105 °C UTI: 4801-2414-31567/0-39
UTI: 4801-2414-31567/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 105 °C 1013.25 hPa
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 1991
Title Empfohlene Sicherheitstechnische Kenngrößen
Database PTB
Publisher Datenbank PTB-AG 3.41/3.71
Language GERM
Density
1 1991 Physikalisch-Technische Bundesanstalt (PTB) 1013.25 hPa 20 °C 1.42 g/cm3 UTI: 4801-2414-31568/0-39
UTI: 4801-2414-31568/0-39;
Line no Density Temperature Pressure
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • property of pure substance
1 1.42 g/cm3 20 °C 1013.25 hPa
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 1991
Title Empfohlene Sicherheitstechnische Kenngrößen
Database PTB
Publisher Datenbank PTB-AG 3.41/3.71
Language GERM
Melting point
1 1991 Physikalisch-Technische Bundesanstalt (PTB) -22 °C UTI: 4801-2414-31566/0-39
UTI: 4801-2414-31566/0-39;
Line no Melting temperature
  • defined value
  • experimental
  • at atmospheric pressure
  • property of pure substance
1 -22 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 1991
Title Empfohlene Sicherheitstechnische Kenngrößen
Database PTB
Publisher Datenbank PTB-AG 3.41/3.71
Language GERM
  • The oxidizing agent is air with an oxygen content of 20.95 % by volume. In the data base it is usually not specified as mixture component. Exceptions are highlighted.
  • Pressure values are absolute, not gauge pressures.
  • Impurities can strongly influence characteristic safety data, particulary if the properties of the impurity considerably deviate from the respective properties of the pure substance.
  • Safety characteristics are only displayed if evaluated data are available.
  • Values can be cited by using the UTI number of the table (Uniform Table Identifier).
  • Color Codes:         recommended value             no recommendation               do not use value

Autoignition Temperature
1 1991 Physikalisch-Technische Bundesanstalt (PTB) > 500 °C UTI: 4801-2414-31570/0-39
UTI: 4801-2414-31570/0-39;
Line no Autoignition Temperature
  • recommended value
  • experimental
  • international standard method
  • property of pure substance
1 > 500 °C [A]
[A] IEC 79-4: Method of Test for Ignition Temperature, Electrical Apparatus for Explosive G; Replaced by IEC-60079-20-1 in 1975
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 1991
Title Empfohlene Sicherheitstechnische Kenngrößen
Database PTB
Publisher Datenbank PTB-AG 3.41/3.71
Language GERM
Flash point
1 1991 Physikalisch-Technische Bundesanstalt (PTB) > 100 °C UTI: 4801-2414-31569/0-39
UTI: 4801-2414-31569/0-39;
Line no Flash point
  • best available value
  • experimental
  • closed cup
  • property of pure substance
1 > 100 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 1991
Title Empfohlene Sicherheitstechnische Kenngrößen
Database PTB
Publisher Datenbank PTB-AG 3.41/3.71
Language GERM
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 12.2 Mol% UTI: 220-2414-31563/0-39
UTI: 220-2414-31563/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 12.2 Mol%
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2005
Title Berechnete molare stöchiometrische Brenngasanteile in Luft (c_stoech)
Database PTB
Publisher Datenbank PTB-Lab. 3.43
Language GERM

No entry in database