Xylene

Appearance / physical state / colour

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2007

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 NIOSH Pocket Guide to Chemical Hazards states that data for physical constants have been taken from many sources, including recognised references in the fields of injdustrial hygiene, occupational medicine, toxicology, and analytical chemistry. 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

Specific details on test material used for the study:

N/A

Physical state at 20°C and 1013 hPa:

liquid

Substance type:

organic

N/A

Conclusions:

The form of m-xylene is that of a liquid.

Executive summary:

The form of m-xylene is that of a liquid. No information on the primary source of this 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 for this endpoint.

Reference 2

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2007

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 NIOSH Pocket Guide to Chemical Hazards states that data for physical constants have been taken from many sources, including recognised references in the fields of injdustrial hygiene, occupational medicine, toxicology, and analytical chemistry. 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

Specific details on test material used for the study:

N/A

Physical state at 20°C and 1013 hPa:

liquid

Substance type:

organic

N/A

Conclusions:

The form of o-xylene is that of a liquid.

Executive summary:

The form of o-xylene is that of a liquid. No information on the primary source of this 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 for this endpoint.

Reference 3

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2007

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 NIOSH Pocket Guide to Chemical Hazards states that data for physical constants have been taken from many sources, including recognised references in the fields of injdustrial hygiene, occupational medicine, toxicology, and analytical chemistry. 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

Specific details on test material used for the study:

N/A

Physical state at 20°C and 1013 hPa:

liquid

Substance type:

organic

N/A

Conclusions:

The form of p-xylene is that of a liquid.

Executive summary:

The form of p-xylene is that of a liquid. No information on the primary source of this 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 for this endpoint.

Reference 4

Endpoint:

appearance / physical state / colour

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, Information from a published handbook, acceptable with restrictions

Justification for type of information:

The justification for read-across can be found in section 13.2.

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

Specific details on test material used for the study:

N/A

Physical state at 20°C and 1013 hPa:

liquid

Key result

Form:

other: liquid

Substance type:

organic

N/A

Conclusions:

The form of ethylbenzene is that of a liquid.

Executive summary:

No information on the primary source of this 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 for this endpoint.

Reference 5

Endpoint:

appearance / physical state / colour

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, 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 Merck Index states that physical data are cited as found in the literature. When several alternate data values appear in the literature, the data is evaluated and representative selections are made; values are then reported with the corresponding source. 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

Specific details on test material used for the study:

N/A

Physical state at 20°C and 1013 hPa:

liquid

Key result

Colour:

colourless

N/A

Conclusions:

Ethylbenzene is a colourless liquid at 20˚C and 101.3 kPa

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 for this endpoint.

Description of key information

At 20°C and 1013 hPa, o-, m-, p-xylene, and ethylbenzene are organic colourless liquids.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

liquid

Additional information

At 20°C and 1013 hPa, o-, m-, p-xylene, and ethylbenzene are organic colourless liquids. The NIOSH (2007) pocket guide to physical hazards, the CRC (2008) Handbook and the Merck (2006) Handbook are all peer reviewed handbooks and so can be considered reliable and suitable for use for this endpoint.