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Physical & Chemical properties

Density

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Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007-06-11 to 2007-06-26
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
1995
GLP compliance:
yes (incl. QA statement)
Remarks:
Food and Consumer Product Safety Authority (WMA), Den Haag, The Netherlands / National GLP Compliance Monitoring Authority, New Delhi, India
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.473 other: dimensionless
Temp.:
20 °C

Determination of volume of pycnometer
Temperature of water = 20.05 °C
Density of water at 20 °C = 0.99823 g/mL

Replication no.

Weight of empty pycnometer
(g)

Weight of pycnometer + water
(g)

Water equivalent
(g)

Volume of pycnometer
(mL)

1

33.8078

60.3965

26.5887

26.6358

2

32.4568

61.0897

28.6329

28.6837

3

34.3045

60.9033

26.5988

26.6460

 

Determination of Density of Wetting Solution (WS)

Temperature of WS = 20.0 °C

WS: 0.25% Surfactant solution in deionised water saturated with test item

Replication no.

Weight of empty pycnometer
(g)

Weight of pycnometer + WS
(g)

Density of ws
(g/mL)

1

33.8076

60.4034

0.9985

2

32.4565

61.0672

0.9975

3

34.3039

60.9436

0.9998

 

 

Mean

0.9986

 

Determination of Density and relative density of test item

Replication no.

Weight of empty pycnometer
(g)

Weight of pycnometer + test item
(g)

Weight of pycnometer + test item
(g)+WS

Density at 20 °C
(g/mL)

Relative density at 20 °C / 4 °C

1

33.8125

35.3142

60.8840

1.4577

1.4577

2

32.4578

33.9720

61.5390

1.4045

1.4045

3

34.3066

35.8074

61.4538

1.5575

1.5575

 

 

 

Mean ± SD

1.4732 ± 0.0777

1.4732 ± 0.0777

 

 

The density of test item was determined to be 1.4732 ± 0.0777 g/mL at 20.0 °C.

The relative density of test item was found to be 1.4732 ± 0.0777 at 20 °C / 4 °C.

Conclusions:
The relative density of the substance at 20 °C, compared to water at 4 °C, was determined to be 1.4732 (OECD Guideline 109, pycnometer method)
Endpoint:
bulk density
Remarks:
and tap density
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2007-06-15 to 2007-07-20
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
2002
Qualifier:
according to guideline
Guideline:
CIPAC MT 186 (Bulk Density)
Version / remarks:
2003
GLP compliance:
yes (incl. QA statement)
Remarks:
Bundesinstitut für Risikobewertung, Berlin, Germany / Food and Consumer Product Safety Authority, Den Haag, The Netherlands / National GLP Compliance Monitoring Authority, New Delhi, India
Type of method:
pour and tap (for solids)
Type:
bulk density
Density:
0.669 g/cm³
Temp.:
20 °C
Remarks on result:
other: temperature not reported; normal conditions (ca. 20 °C) assumed.
Type:
tap density
Density:
0.781 g/cm³
Temp.:
20 °C
Remarks on result:
other: temperature not reported; normal conditions (ca. 20 °C) assumed.

Replication no.

Weight of sample (w)

(g)

Volume of sample before compaction (v1)

(mL)

Number of taps

Volume of sample after compaction (v2)

(mL)

Bulk (pour) density

(g/mL)

Tap density

(g/mL)

1

150.57

225

50

194

0.6692

0.7761

2

150.48

225

50

192

0.6688

0.7838

3

150.34

225

50

192

0.6682

0.7830

 

 

Mean ± SD

0.6687 ± 0.0005

0.7810 ± 0.0042

The bulk density and tap density of test item was determined to be 0.6687 ± 0.0005 and 0.7810 ± 0.0042 g/mL, respectively.

Conclusions:
The bulk density and tap density of test item was determined to be 0.6687 ± 0.0005 and 0.7810 ± 0.0042 g/mL, respectively (OPPTS 830.7300, pour and tap method)
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2007-06-15 to 2007-07-20
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
1995
GLP compliance:
yes (incl. QA statement)
Remarks:
Bundesinstitut für Risikobewertung, Berlin, Germany / Food and Consumer Product Safety Authority, Den Haag, The Netherlands / National GLP Compliance Monitoring Authority, New Delhi, India
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.348 other: dimensionless
Temp.:
20 °C

Determination of volume of pycnometer
Temperature of water = 20.0 °C

Density of water (F) at 20 °C = 0.99823 g/mL

Replication no.

Weight of empty pycnometer
(g)

Weight of pycnometer + water
(g)

Water equivalent
(g)

Volume of pycnometer
(mL)

1

33.8077

61.3256

27.5179

27.5667

2

32.4564

60.2999

27.8435

27.8929

3

34.3041

60.9125

26.6084

26.6556

 

 

Determination of Density of Wetting Solution (WS)

Temperature of WS = 20.0 °C

WS: 0.25% Surfactant solution in deionised water saturated with test item

Replication no.

Weight of empty pycnometer
(g)

Weight of pycnometer + WS
(g)

Density of ws
(g/mL)

1

33.8071

60.8176

0.9798

2

32.4558

61.0963

1.0268

3

34.3037

60.9132

0.9983

 

 

Mean

1.0016

 

 

Determination of Density and relative density of test item

Replication no.

Weight of empty pycnometer
(g)

Weight of pycnometer + test item
(g)

Weight of pycnometer + test item +WS

(g)

Density at 20 °C
(g/mL)

Relative density at 20 °C / 4 °C

1

33.8075

35.3128

61.8263

1.3740

1.3740

2

32.4562

33.9583

60.6983

1.2564

1.2564

3

34.3039

35.8056

61.4389

1.4124

1.4124

 

 

 

Mean ± SD

1.3476 ± 0.0813

1.3476 ± 0.0813

 

The density of test item was determined to be 1.3476 ± 0.0813 g/mL at 20.0 °C. The relative density of test item was found to be 1.3476 ± 0.0813 at 20 °C / 4 °C.

Conclusions:
The relative density of the substance at 20 °C, compared to water at 4 °C, was determined to be 1.3476 (OECD Guideline 109, pycnometer method)

Description of key information

Relative density: 1.4732 at 20 °C (OECD Guideline 109, pycnometer method)

Key value for chemical safety assessment

Relative density at 20C:
1.473

Additional information

In another study performed using according to the same method a relative density of 1.3476 at 20 °C was measured on a less pure test item, supporting the result obtained from the key study.

In this same study, bulk density and tap density were determined to be 0.6687 and 0.7810 g/mL, respectively (OPPTS 830.7300, pour and tap method)