3a,4,7,7a-tetrahydro-4,7-methanoindene

Density

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

density, other

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Data taken from proprietary source, no details available

Qualifier:

according to guideline

Guideline:

other: ASTM D4052

Deviations:

not specified

Principles of method if other than guideline:

ASTM D4052

GLP compliance:

no

Type of method:

other: ASTM D4052

Specific details on test material used for the study:

The density of commercial DCPD (94%).

Dynamic viscosity of test material:

N/A

Key result

Type:

density

Density:

>= 975 - <= 989 kg/m³

Temp.:

20 °C

Key result

Type:

density

Density:

>= 965 - <= 980 kg/m³

Temp.:

30 °C

N/A

Conclusions:

The density of commercial DCPD is 975-989 kg/m^3, or 0.975 -0.989 g/cm^3, at 20°C.
The density of commercial DCPD is 965-980 kg/m^3, or 0.965 -0.980 g/cm^3, at 30°C.

Executive summary:

The density of commercial DCPD (94%) was taken from proprietary data (Shell 2016) and reported as ranging between 975 -989 kg/m3, or 0.975 -0.989 g/cm3, at 20°C. The study is not GLP compliant but followed guideline ASTM D 4052 and is considered suitable for use for this endpoint.

The density of commercial DCPD is 965-980 kg/m³, or 0.965 - 0.980 g/cm³, at 30°C.

Reference 2

Endpoint:

density, other

Remarks:

density

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 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

Remarks:

No data reported

Type of method:

other: not reported

Specific details on test material used for the study:

N/A

Dynamic viscosity of test material:

N/A

Key result

Type:

density

Density:

0.93 g/cm³

Temp.:

35 °C

N/A

Conclusions:

The density of this substance is 0.93 g/cm^3 at 35°C.

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 as the key study for this endpoint. The density of the substance is 0.93 g/cm³ at 35°C.

Reference 3

Endpoint:

density, other

Remarks:

density

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

2005

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 International Chemical Safety Cards (ICSC) are produced by the WHOs International Programme on Chemical Safety (IPCS). The introduction to the ICSC states that they report “information collected, verified and peer reviewed by internationally recognized scientists”. Therefore, the values presented are acceptable as they are from a reliable secondary source of phys chem. data.

GLP compliance:

not specified

Remarks:

No data reported

Type of method:

other: Data taken from secondary source. Type of method not stated.

Specific details on test material used for the study:

N/A

Dynamic viscosity of test material:

N/A

Key result

Type:

density

Density:

0.98 g/cm³

Remarks on result:

other: Temperature not reported in the in the Chemical Safety Card: Dicyclopentadiene ICSC-0873

N/A

Conclusions:

The density of the test substance is 0.98 g/cm^3.

Executive summary:

The density of the test substance is 0.98 g/cm³. 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 as the supporting study for this endpoint.

Description of key information

The density of DCPD has been reported in 3 references with good general agreement. The density of high purity DCPD is 0.9302 g/cm³ at 35°C whereas the density of commercial DCPD Is 0.975 - 0.989 g/cm³ at 20°C. The density of commercial DCPD is 965-980 kg/m³, or 0.965 -0.980 g/cm³, at 30°C.

The relative density value taken for the Key Value for Chemical Safety Assessment is 0.98 at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:

0.98

Additional information

The CRC handbook is peer reviewed and is considered reliable and a suitable key study for this endpoint (Lide 2008). The study, WHO ICSC (2005) have identified the density of the test substance to be 0.98 g/cm^3. 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.

The density of commercial DCPD (94%) was taken from proprietary data (Shell 2016). The study is not GLP compliant but followed guideline ASTM D4052 and is considered suitable for use for this endpoint.