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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flash point

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Endpoint:
flash point, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Up to 2008
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP status not known, guideline not known, information from a published handbook, acceptable with restrictions
Principles of method if other than guideline:
The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
GLP compliance:
not specified
Type of method:
other: Not stated
Specific details on test material used for the study:
N/A
Key result
Flash point:
-60 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Pressure was not reported so was assumed to be standard pressure

N/A

Conclusions:
Flash point of butane is -60˚C.
Executive summary:

No information on the primary source of the data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. Most up to date source at the time. Butane is a gas at room temperature and therefore, in accordance with ECHA (2008) Guidance on information requirements and chemical safety assessment, chapter R7a: endpoint specific guidance, the flash point study does not need to be conducted. Endpoint for information only. Flash point of butane is -60˚C.

Endpoint:
flash point, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Up to 2008
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP status not known, guideline not known, information from a published handbook, acceptable with restrictions
Principles of method if other than guideline:
The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
GLP compliance:
not specified
Type of method:
other: Not stated
Specific details on test material used for the study:
N/A
Key result
Flash point:
-87 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Pressure was not reported so was assumed to be standard pressure

N/A

Conclusions:
Flash point of Isobutane is -87˚C.
Executive summary:

No information on the primary source of the data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. Most up to date source at the time. Propane is a gas at room temperature and therefore, in accordance with ECHA (2008) Guidance on information requirements and chemical safety assessment, chapter R7a: endpoint specific guidance, the flash point study does not need to be conducted. Endpoint for information only. Flash point of Isobutane is -87˚C.

Endpoint:
flash point, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Up to 2008
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP status not known, guideline not known, information from a published handbook, acceptable with restrictions
Principles of method if other than guideline:
The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
GLP compliance:
not specified
Type of method:
other: Not stated
Specific details on test material used for the study:
N/A
Key result
Flash point:
-104 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Pressure not reported, so assumed to be standard pressure

N/A

Conclusions:
Flash point of propane is -104°C.
Executive summary:

No information on the primary source of the data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. Most up to date source at the time. Propane is a gas at room temperature and therefore, in accordance with ECHA (2008) Guidance on information requirements and chemical safety assessment, chapter R7a: endpoint specific guidance, the flash point study does not need to be conducted. Endpoint for information only. Flash point of propane is -104°C.

Description of key information

The flash point of the substances in the category ranges from -104 to -60°C.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
-84 °C

Additional information

Data from the CRC handbook (Lide 2008) were available for propane, butane and isobutane. The information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use for this endpoint.

The flash point of propane is -104°C, butane is -60°C and isobutane is -87°C. The data available for these substances can be read across to other members of the category. The mean for the category is -84°C and this has been used to complete the 'key value for chemical safety assessment'.