Registration Dossier
Registration Dossier
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EC number: 231-953-2 | CAS number: 7782-40-3
Additional physico-chemical information
Administrative data
- Endpoint:
- other: Acid soluble surface impurities
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Inhouse data elaborated following internal SOP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Sn320-5.01.01.4 Grit General – Surface ICP Analysis and Sn320-4.09.02 ICP
- Deviations:
- no
- Principles of method if other than guideline:
- Surface ICP is a technique used to gauge the levels of impurities that are to be found on the surface of a material. This is a technique often used to identify the “cleanliness” of certain diamond products.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Diamond
- EC Number:
- 231-953-2
- EC Name:
- Diamond
- Cas Number:
- 7782-40-3
- Molecular formula:
- C
- IUPAC Name:
- carbon
- Details on test material:
- Material: Synthetic Diamond Grade2 (2micron) Powder.
Batch Number : 135-200-0125-99 E634%Cu33%WT33% REACH
Constituent 1
Results and discussion
- Results:
- The surface impurities present on the surface of the Synthetic Diamond Grade 2 (2micron) powder are detailed in the table below.
Any other information on results incl. tables
The surface impurities present on the surface of the Synthetic Diamond Grade 2 (2micron) powder are detailed in the table below.
Analyte |
Control Sample (ppm) |
Synthetic Diamond Grade2 Surface Impurities (ppm) |
Al |
0.014 |
86.92 |
B |
0.667 |
24.01 |
Ca |
0.257 |
78.15 |
Cd |
0.004 |
0.028 |
Co |
0.000 |
0.793 |
Cr |
0.004 |
9.800 |
Cu |
0.018 |
3.569 |
Fe |
0.029 |
37.99 |
K |
0.004 |
19.40 |
Mg |
0.004 |
10.22 |
Mn |
0.016 |
46.99 |
Ni |
0.009 |
4.899 |
Pb |
0.036 |
1.800 |
Si |
1.050 |
183.5 |
Ti |
0.111 |
4.306 |
Mo |
0.484 |
2.810 |
Zr |
0.03 |
0.932 |
Applicant's summary and conclusion
- Conclusions:
- The reported surface impurities are usual surface impurities for common synthetic diamond products. The concentrations found are within the expected range and no potential risk is expected to result from the detected impurities.
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