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EC number: 931-322-8 | CAS number: 68131-74-8
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 13.2.2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-Guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: EU Method A.3 (Relative Density); CSN ISO 1183-1 part B
- Deviations:
- yes
- Remarks:
- : n- hexane was chosen as a solvent instead of water, because of a low solubility of the test substance in n- hexane.
- GLP compliance:
- yes
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.94
- Temp.:
- 20 °C
- Conclusions:
- Relative density of the test substance, Ashes (residues), is 1.937.
Standard uncertainty of determination was estimated to 0.02 (*).
(*) Standard uncertainty is equal to a standard deviation. - Endpoint:
- density, other
- Remarks:
- Density types indicated: Proctor density; density; bulk density
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication/study report which meets basic scientific principles
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-6
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-3
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 13286-2
- Deviations:
- not specified
- GLP compliance:
- no
- Type:
- other: Proctor density
- Density:
- >= 1.3 - <= 1.5 g/cm³
- Remarks on result:
- other: The result is independent on the water content. Weak optimum in the Proctor curve is present at ca. wpr=10-14%.
- Type:
- density
- Density:
- >= 2.4 - <= 2.6 g/cm³
- Remarks on result:
- other: apparent density, geometrical density
- Type:
- bulk density
- Density:
- >= 1 - <= 1.4 g/cm³
- Remarks on result:
- other: temperature not reported
- Endpoint:
- density, other
- Remarks:
- Density types indicated: Proctor density; density; bulk density
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication/study report which meets basic scientific principles
- Qualifier:
- according to guideline
- Guideline:
- other: DIN V 18004
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-3
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 13286-2
- Deviations:
- not specified
- GLP compliance:
- no
- Type:
- other: Proctor density
- Density:
- >= 0.9 - <= 1.2 g/cm³
- Remarks on result:
- other: The optimal water content is 30-40%.
- Type:
- density
- Density:
- >= 1 - <= 1.5 g/cm³
- Remarks on result:
- other: Particle density
- Type:
- bulk density
- Density:
- >= 0.6 - <= 1 g/cm³
- Remarks on result:
- other: temperature not reported
- Endpoint:
- density, other
- Remarks:
- Density types indicated: Proctor density; density; bulk density
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication/study report which meets basic scientific principles
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-6
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-3
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 13286-2
- Deviations:
- not specified
- GLP compliance:
- no
- Type:
- other: Proctor density
- Density:
- >= 1.1 - <= 2 g/cm³
- Remarks on result:
- other: Optimal water content is 17%-30%.
- Type:
- density
- Density:
- >= 2.4 - <= 3.3 g/cm³
- Remarks on result:
- other: apparent density, geometrical density
- Type:
- bulk density
- Density:
- >= 0.7 - <= 1.5 g/cm³
- Remarks on result:
- other: temperature not reported
- Endpoint:
- density, other
- Remarks:
- Density types indicated: Proctor density; density; bulk density
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication/study report which meets basic scientific principles
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-6
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1097-3
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 13286-2
- Deviations:
- not specified
- GLP compliance:
- no
- Type:
- other: Proctor density
- Density:
- >= 1.2 - <= 1.5 g/cm³
- Remarks on result:
- other: Optimal water content is 15-25%.
- Type:
- density
- Density:
- >= 2 - <= 2.6 g/cm³
- Remarks on result:
- other: Apparent density, geometrical density. The result depends on the content of glass, porosity and content of residual coal.
- Type:
- bulk density
- Density:
- >= 0.8 - <= 1.2 g/cm³
- Remarks on result:
- other: temperature not reported
Referenceopen allclose all
Study results
Table No. 1 Results of density measurement
Parameter |
1stdetermination |
2nddetermination |
Average |
Weight of empty pycnometer (m0) |
19.45684 |
18.09101 |
- |
Weight of pycnometer with test substance (m1) |
26.80524 |
26.35542 |
- |
Weight of solid test substance (m1– m0) |
7.34840 |
8.26441 |
- |
Weight of pycnometer with sample and n-hexane (m2) |
41.31008 |
40.69086 |
- |
Weight of pycnometer with n-hexane (m3) |
36.50045 |
35.32724 |
- |
Density of n-hexane (rhexane) |
0.67424 |
0.67474 |
0.67449 |
Density of solid substance (rTV) |
1.9474 |
1.9259 |
1.9366 |
Relative density of solid substance |
- |
- |
1.937 |
Note: Standard deviation of relative density is 0.02 and was calculated from variation range.
The temperature was not reported.
The temperature was not reported.
The temperature was not reported.
The temperature was not reported.
Description of key information
Fly ash: relative density = 1.94 at 20 °C
Density: ≥2.0 - ≤ 3.3 g/cm³ (for boiler slag, bottom ash, fly ash from hard coal and fly ash from brown coal)
Proctor density: ≥ 0.9 - ≤ 2.0 g/cm³ (for boiler slag, bottom ash, fly ash from hard coal and fly ash from brown coal)
Bulk density: ≥ 0.6 - ≤ 1.5 g/cm³ (for boiler slag, bottom ash, fly ash from hard coal and fly ash from brown coal)
Key value for chemical safety assessment
Additional information
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Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
