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CAS Number: 120-82-1
Sum Formula: C6H3Cl3
Molar Mass: 181.5 g/mol
German Synonyms: 1,2,4-Trichlorbenzen | 1,2,4-Trichlorbenzol
English Synonyms: 1,2,4-Trichlorobenzene
EC Index Number: 602-087-00-6
EC Number: 204-428-0
Temperature Class: T1
Explosion Group: IIA (estimated)
Structural Formula 1,2,4-Trichlorobenzene

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. 4: acute oral toxicity, category 4
  • Skin Irrit. 2: skin irritation, category 2
  • Aquatic Acute 1: acute hazards to the aquatic environment, category 1
  • Aquatic Chronic 1: long-term hazards hazards to the aquatic environment, category 1
GHS Pictogram:
pictogram harmful
pictogram environmental hazard





GHS Signal Word: Warning
GHS Hazard Statement:
  • H302: Harmful if swallowed.
  • H315: Causes skin irritation.
  • H410: Very toxic to aquatic life with long lasting effects.

Antoine parameters
1 1976 Ohe, S. 7.51512 Torr UTI: 129-1213-19620/0-39
UTI: 129-1213-19620/0-39;
Line no Upper temperature limit of Antoine equation Lower temperature limit of Antoine equation Antoine constant C Antoine constant B Antoine constant A
  • recommended value
  • saturated
  • property of pure substance
  • recommended value
  • saturated
  • property of pure substance
  • recommended value
  • by regression
  • saturated
  • property of pure substance
  • recommended value
  • by regression
  • saturated
  • property of pure substance
  • defined value
  • by regression
  • saturated
  • property of pure substance
1 < 213 °C > 38 °C 242.429 °C 2110.983 °C 7.51512 Torr
Bibliographic data
Title Computer Aided Data Book of Vapor Pressure
Author Ohe, S.
Year 1976
Publisher Data Book Publishing Company;Tokyo(Pub.)
Abstract English Vapor pressure data for about 2000 pure substances are collected and processed by computer and plotted. Antoine constants are evaluated by a least sqare method.
Language JAPN
Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 213 °C UTI: 1000-1213-19639/0-39
UTI: 1000-1213-19639/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 213 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Density
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 20 °C 1.46 g/cm3 UTI: 1000-1213-19640/0-39
UTI: 1000-1213-19640/0-39;
Line no Density Temperature Pressure
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • recommended value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • recommended value
  • at atmospheric pressure and room temperature
1 1.46 g/cm3 20 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Melting point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 17 °C UTI: 1000-1213-19642/0-39
UTI: 1000-1213-19642/0-39;
Line no Melting temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • recommended value
  • at atmospheric pressure
  • saturated
1 17 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Relative gas density
1 1963 Nabert, K.; Schön, G. 6.26 UTI: 1000-1213-19641/0-39
UTI: 1000-1213-19641/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 6.26
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Solubility in water
1 2009 Physikalisch-Technische Bundesanstalt (PTB) 25 °C 0.035 g/l UTI: 228-1213-19636/0-39
UTI: 228-1213-19636/0-39;
Line no Solubility in water Temperature
  • defined value
  • property of pure substance
  • property of pure substance
1 0.035 g/l 25 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2009
Title Wasserlöslichkeit
Database PTB
Publisher Datenbank PTB-Lab. 3.43
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) 571 °C UTI: 4801-1213-19644/0-39
UTI: 4801-1213-19644/0-39;
Line no Autoignition Temperature
  • recommended value
  • experimental
  • international standard method
  • property of pure substance
1 571 °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 1963 Nabert, K.; Schön, G. 110 °C UTI: 1000-1213-19637/0-39
UTI: 1000-1213-19637/0-39;
Line no Flash point
  • recommended value
  • experimental
  • closed cup
  • property of pure substance
1 110 °C
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 3.4 Mol% UTI: 220-1213-19635/0-39
UTI: 220-1213-19635/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 3.4 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