Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Data on physical properties of tetrahydrothiophene (CAS 110 -01 -0) were obtained from a number of primary and secondary sources, including (Q)SARs. The data in the secondary sources from Chemical Safety Cards and handbooks are based on a critical evaluation of peer-reviewed data and the selected values are considered to be reliable and representative of the property under investigation. Information in the review process was documented in the introduction of the source. The use of Klimisch codes (Klimisch et al., 1997), was extended to these secondary sources and a reliability code of (2) valid with restrictions was assigned when using the authoritative secondary source.

Review of the collated information indicates that tetrahydrothiophene has high vapour pressure with a relative density the same as water. Tetrahydrothiophene has a high water solubility and Henry's Law constant of 36.48 Pa-m3/mole indicates that there is also expected to be significant volatilisation.

Tetrahydrothiophene is currently classified under CLP of Annex VI of 1272/2008 as category 2 flammable liquid, with a hazard statement "highly flammable liquid and vapour”. Tetrahydrothiophene has a boiling point of 119-121°C and a flash point of 17.5°C, which meets the criteria of having a boiling point of >35°C and a flashpoint of <23°C.