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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
peer-reviewed
Principles of method if other than guideline:
No specification of method
GLP compliance:
not specified
Type of method:
other: data from peer-reviewed database
Type:
relative density
Density:
1.33 g/cm³
Temp.:
20 °C

According to the data from this peer-reviewed database, the relative density of hydroquinone is 1.33 g/cm3 at 20°C.

Conclusions:
According to the data from this peer-reviewed database, the relative density of hydroquinone is 1.33 g/cm3 at 20°C.
Endpoint:
relative density
Remarks:
vapour density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
peer-reviewed
Principles of method if other than guideline:
No specification of method.
GLP compliance:
not specified
Type of method:
other: data from handbook
Type:
relative density
Density:
1.36
Temp.:
20 °C
Type:
other: vapour density
Density:
3.81
Remarks on result:
other: Temp.: not applicable

According to the data from this handbook, the relative density of hydroquinone is 1.358 at 20°C and the vapour density is 3.81.

Conclusions:
According to the data from this handbook, the relative density of hydroquinone is 1.358 at 20°C and the vapour density is 3.81.
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
peer-reviewed
Principles of method if other than guideline:
No specification of method.
GLP compliance:
not specified
Type of method:
other: data from peer-reviewed handbook
Type:
relative density
Density:
1.33
Temp.:
15 °C

According to the data from this peer-reviewed handbook, the relative density of hydroquinone is 1.332 at 15 °C.

Conclusions:
According to the data from this peer-reviewed handbook, the relative density of hydroquinone is 1.332 at 15 °C.
Executive summary:

According to the data from this peer-reviewed handbook, the relative density of hydroquinone is 1.332 at 15 °C.

Endpoint:
density, other
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
peer-reviewed
Principles of method if other than guideline:
No specification of method
GLP compliance:
not specified
Type of method:
other: Data from peer-reviewed handbook
Type:
density
Density:
1.33 g/cm³
Temp.:
15 °C

According to the data from this peer-reviewed handbook, the density of hydroquinone is 1.332 g/cm3 at 15 °C.

Conclusions:
According to the data from this peer-reviewed handbook, the density of hydroquinone is 1.33 g/cm3 at 15 °C.
Executive summary:

According to the data from this peer-reviewed handbook, the relative density of hydroquinone is 1.33 g/cm3 at 15 °C.

Description of key information

relative density of hydroquinone: 1.33 at 15 °C

Key value for chemical safety assessment

Additional information

Reliable data from peer-reviewed sources