Registration Dossier
Registration Dossier
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EC number: 234-759-6 | CAS number: 12031-82-2
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- density, other
- Remarks:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2019-07-30 to 2019-08-01
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- - Appearance: solid at room temperature
- Type:
- density
- Density:
- 3.457 other: g/mL
- Temp.:
- 20 °C
- Remarks on result:
- other: relative density: d(20,4) = 3.457
- Conclusions:
- The test item Lithium titanate has a relative density at 20 °C compared to water at 4 °C of 3.457.
Reference
Raw data of the determination
W1: Weight of the pycnometer with air: 23.4388 g / 24.6666 g
W2: Weight of the pycnometer filled with deionized water: 48.3764 g / 49.3137 g
W3: Weight of the pycnometer filled with displacement liquid: 40.5166 g / 41.5452 g
W4: Weight of the pycnometer half-filled with the sample: 37.5431 g / 40.6381 g
W5: Weight of the pycnometer filled with sample and displacement liquid: 51.8338 g / 54.3611 g
Literature data (CRC Handbook of Chemistry and Physics 75th Edition):
d (20, w) (density of water at 20 °C) = 0.9982 g/mL
d (4, w) (density of water at 4 °C) = 0.99997 g/mL
d (20, a) (density of air at 20 °C) = 0.0012 g/mL
displacement liquid: n-heptan
Calculation of the relative density with correction of buoyancy due to the air
Corrected density of displacement liquid (d) at 20°C
d(20,d) = (W3 –W1/ W2 –W1)· [d(20,w) – d(20,a)] + d(20,a)
d1(20,d) = 0.6840 g/mL d2(20,d) = 0.6840 g/mL
Corrected density of solid at 20°C
d(20,S) = [W4 – W1 / (W4 – W1 + W3 –W5)]· [d(20,d) – d(20,a)] + d(20,a)
d1(20,S) = 3.4564 g/mL d2(20,S) = 3.4568 g/mL
Corrected relative density of solid
d(20,4,S) = d(20,S) / d(4, w)
d1(20,4,S) = 3.4565 d2(20,4,S) = 3.4570
mean value of 2 determinations: d(20,4,S) = 3.457
Description of key information
The test item Lithium titanate has a relative density at 20 °C compared to water at 4 °C of 3.457.
Key value for chemical safety assessment
- Relative density at 20C:
- 3.457
Additional information
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