Xylene

Boiling point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

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 reported

Specific details on test material used for the study:

N/A

Key result

Boiling pt.:

136.16 °C

Atm. press.:

1 013 hPa

Decomposition:

no

N/A

Conclusions:

The boiling point of ethylbenzene is 136.16˚C.

Executive summary:

No information on 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 for this endpoint.

Reference 2

Endpoint:

boiling point

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 reported

Specific details on test material used for the study:

N/A

Key result

Boiling pt.:

ca. 139.1 °C

Atm. press.:

1 013 hPa

Decomposition:

no

N/A

Conclusions:

The boiling point of m-xylene is 139.1˚C.

Executive summary:

No information on 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.

Reference 3

Endpoint:

boiling point

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 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 reported

Specific details on test material used for the study:

N/A

Key result

Boiling pt.:

144.5 °C

Atm. press.:

1 013 hPa

Decomposition:

no

N/A

Conclusions:

The boiling point of o-xylene is 144.5°C.

Executive summary:

No information on 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.

Reference 4

Endpoint:

boiling point

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, 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 reported

Specific details on test material used for the study:

N/A

Key result

Boiling pt.:

138.2 °C

Atm. press.:

1 013 hPa

Decomposition:

no

N/A

Conclusions:

The boiling point of p-xylene is 138.2˚C.

Executive summary:

No information on 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.

Description of key information

The boiling point of the xylene isomers and ethylbenzene range from 136.16-144.5˚C at 1013 hPa. The boiling point of m-xylene is reported as 139.1˚C, for o-xylene as 144.5˚C, for p-xylene it is 138.2˚C and for ethylbenzene it is 136.16 °C. The mean boiling point is 139.49˚C and this value will be used for the risk assessment.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

139.49 °C

Additional information

Data were taken from the CRC Handbook (Lide, 2008), which is a peer reviewed handbook and so can be considered reliable and suitable for use for this endpoint. The data are supported by results from the Merck Handbook (O'Neil 2006), with m-xylene, o-xylene, p-xylene and ethylbenzene having boiling points of 139.3°C, 144°C, 137 - 138°C and 136.25°C respectively.