Registration Dossier
Registration Dossier
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EC number: 247-117-5 | CAS number: 25583-20-4
Nanomaterial specific surface area
Administrative data
- Endpoint:
- nanomaterial specific surface area
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02-11 April 2018
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
- GLP compliance:
- no
- Remarks:
- but study conducted in a laboratory holding a current statement of GLP compliance.
- Details on methods and data evaluation:
- The test substance, titanium nitride, was conditioned for 16 hours at 40 °C, with a Nitrogen gas purge, cooled and then run on the Porosimeter.
Full isothermal analysis (porosity) was performed using Barrett-Joyner-Halenda (BJH) method with relative pressure (P/Po) range of 0.05 up to 1.00 followed by desorption back down to a relative pressure of 0.06.
The BET Surface Area was assessed using the relative pressure (P/Po) range of 0.05 up to 0.30 and a minimum of 3 points selected over the range to obtain acceptable correlation coefficients of ≥ 0.9975 and positive intercept.
Duplicated analysis was performed.
Test material
- Reference substance name:
- Titanium nitride
- EC Number:
- 247-117-5
- EC Name:
- Titanium nitride
- Cas Number:
- 25583-20-4
- Molecular formula:
- NTi
- IUPAC Name:
- titanium nitride
- Test material form:
- solid: nanoform
Constituent 1
- Specific details on test material used for the study:
- Weights taken: Weight 1: 03553g
Weight 2: 0.4253g
Data gathering
- Instruments:
- Micromeritics Tristar II 3020 Porosimeter with SmartPrep 065, LIMS 2214, SOP 099.02/2
- Calibration:
- System Suitability
The instrument was checked using carbon black reference standard, Intertek Standard Reference 02593.03.
Specification: 21.52 ± 0.75 m2/g
Result: 21.2728 m2/g
Correlation coefficients of ≥ 0.9975 and positive intercepts were obtained for the carbon black reference standard and duplicated sample analysis.
System suitability has passed.
Results and discussion
Specific surface areaopen allclose all
- Key result
- Specific Surface Area:
- 26.5 m²/g
- Remarks on result:
- other: mean
- Specific Surface Area:
- 26.4 m²/g
- Remarks on result:
- other: Replicate 1
- Specific Surface Area:
- 26.55 m²/g
- Remarks on result:
- other: Replicate 2
Applicant's summary and conclusion
- Conclusions:
- The mean surface area of TiN, measured with a porosimeter, is 26.5 m2/g.
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