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Physical & Chemical properties

Density

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Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 October 1998
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to EU test guidance in compliance with GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998
Report date:
1998

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes
Type of method:
air comparison pycnometer (for solids)

Test material

Constituent 1
Details on test material:
Test substance: T-9601
Batch-No.: HI-295
Purity: 94.7% (w/w) +0.5%
Certificate No., date: NB203 dated November 16, 1998
Physical state: Powder (visual observation)
Storage stability: 3 years in a refrigerator and dry (information by the producer)
Expiration date of the certificate: May 2001

Results and discussion

Density
Type:
relative density
Density:
1.29
Temp.:
24.3 °C

Any other information on results incl. tables

Two test series where carried out on the substance:

Weight / g

11.7349

12.7157

Volume / cm3

 

 

1. measurement

9.20

9.92

2. measurement

9.17

9.87

3. measurement

9.15

9.89

Mean

9.17

9.89

Density g / cm3

1.28

1.29

 

Applicant's summary and conclusion

Conclusions:
The relative density (compared to water at 4 °C) is DR4= 1.29
Executive summary:

The purpose of the test was the determination of the relative density according to Guideline 92/69/EEC of 31 July 1992, Annex. Part A: Methods for the determination of physico-chemical properties. A.3. Relative Density. The study was conducted in compliance with the Principles of Good Laboratory Practice (GLP).

 

The density of a solid in any form can be measured at room temperature with the gas comparison pycnometer. The volume of a substance is measured in air or in an inert gas in a cylinder of variable calibrated volume. For the calculation of density one mass measurement is taken after concluding the volume measurement. Instrument: gas comparison pycnometer, model 930 (Beckmann).

 

The relative density (compared to water at 4 °C) is DR4= 1.29