Skip to main navigation Skip to main content Skip to page footer
Chemsafe logo Chemsafe logo

CAS Number: 110-01-0
Sum Formula: C4H8S
Molar Mass: 88.2 g/mol
German Synonyms: Thiophan | Thiolan | Tetramethylensulfid | Tetrahydrothiophen
English Synonyms: Thiophan | Thiolan | THT | Tetrahydrothiophene
EC Index Number: 613-087-00-0
EC Number: 203-728-9
Temperature Class: T4
Explosion Group: IIA
Structural Formula Tetrahydrothiophene

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:
  • Flam. Liq. 2: flammable liquids, category 2
  • Acute Tox. 4: acute oral toxicity, category 4
  • Acute Tox. 4: acute dermal toxicity, category 4
  • Acute Tox. 4: acute toxicity by inhalation, category 4
  • Eye Irrit. 2: eye irritation, category 2
  • Skin Irrit. 2: skin irritation, category 2
  • Aquatic Chronic 3: long-term hazards hazards to the aquatic environment, category 3
GHS Pictogram:
pictogram flammable
pictogram harmful





GHS Signal Word: Danger
GHS Hazard Statement:
  • H225: Highly flammable liquid and vapour.
  • H332: Harmful if inhaled.
  • H312: Harmful in contact with skin.
  • H302: Harmful if swallowed.
  • H319: Causes serious eye irritation.
  • H315: Causes skin irritation.
  • H412: Harmful to aquatic life with long lasting effects.

Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 121 °C UTI: 1000-1600-24177/0-39
UTI: 1000-1600-24177/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 121 °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 g/cm3 UTI: 1000-1600-24178/0-39
UTI: 1000-1600-24178/0-39;
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 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. -96 °C UTI: 1000-1600-24176/0-39
UTI: 1000-1600-24176/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -96 °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
Relative gas density
1 1963 Nabert, K.; Schön, G. 3.04 UTI: 1000-1600-24179/0-39
UTI: 1000-1600-24179/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 3.04
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 0.403 g/l UTI: 228-1600-24174/0-39
UTI: 228-1600-24174/0-39;
Line no Solubility in water Temperature
  • defined value
  • estimated
  • property of pure substance
  • property of pure substance
1 0.403 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 1963 Nabert, K.; Schön, G. 200 °C UTI: 1000-1600-24181/0-39
UTI: 1000-1600-24181/0-39;
Line no Autoignition Temperature
  • recommended value
  • international standard method
  • property of pure substance
1 200 °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 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
Flash point
1 1963 Nabert, K.; Schön, G. 13 °C UTI: 1000-1600-24180/0-39
UTI: 1000-1600-24180/0-39;
Line no Flash point
  • recommended value
  • closed cup
  • property of pure substance
1 13 °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
Explosion limits
Lower explosion limit
1 1963 Nabert, K.; Schön, G. 1.1 Vol% ± 10 % UTI: 1000-1600-24184/0-39
UTI: 1000-1600-24184/0-39;
Line no Lower explosion limit
  • recommended value
  • property of pure substance
1 1.1 Vol% ± 10 %
2 42 g/m3 ± 10 % ⚠
⚠ The reference for the specification in g/m3 is the molar volume at 20 °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
Upper explosion limit
1 1963 Nabert, K.; Schön, G. 12.3 Vol% ± 5 % UTI: 1000-1600-24183/0-39
UTI: 1000-1600-24183/0-39;
Line no Upper explosion limit
  • recommended value
  • property of pure substance
1 12.3 Vol% ± 5 %
2 450 g/m3 ± 5 % ⚠
⚠ The reference for the specification in g/m3 is the molar volume at 20 °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
Maximum experimental safe gap
1 1992 Nabert, K.; Schön, G.; Redeker, T. 0.99 mm UTI: 1050-1600-24185/0-39
UTI: 1050-1600-24185/0-39;
Line no Maximum experimental safe gap
  • recommended value
  • experimental
  • property of pure substance
1 0.99 mm
Bibliographic data
Author Nabert, K.; Schön, G.; Redeker, T.
Year 1992
Title Sicherheitstechnische Kenngrößen brennbarer Gase und Dämpfe
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Language GERM
Maximum explosion pressure
1 1963 Nabert, K.; Schön, G. 8.4 bar UTI: 1000-1600-24182/0-39
UTI: 1000-1600-24182/0-39;
Line no Maximum explosion pressure
  • recommended value
  • property of pure substance
1 8.4 bar
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

No entry in database