Thank you for taking the time to read this analysis. The following analysis compares two products, current market leader, Sigma-Aldrich 99.99% synthetic graphite and RS Mines natural graphite.
To help you understand the analysis further, it is important to understand that the Raman Spectroscopy is most sensitive to highly symmetric covalent bonds with little or no natural dipole moment. The carbon-carbon bonds that make up these materials fit this criterion perfectly and as a result Raman Spectroscopy is highly sensitive to these materials and is able to provide a wealth of information about their structure.
Raman Spectroscopy is capable discerning even slight changes in structure making it a very valuable tool in the characterisation of carbon based materials. There are three points of data that need to be specifically examined.
1. Examination at wavelength ~1360cm-1, if any reading in this wavelength is detected then this represents sp3 defect band/ signal
2. Examination of peak values at wavelength ~1580, this is known as the G Band
3. Examination of peak values at wavelength ~2718, this is known as the G1 Band
Lastly the Sigma-Aldrich 99.99% synthetic graphite product has been engineered to this quality, however RS Mines graphite, carbon purity is naturally occurring.
Conclusions, please view the results graph and table below: Upon examination it is clear to see that as raw material the RS Mines natural crystalline vein graphite, with 99%+ purity, outperforms the market leader, Sigma-Aldrich 99.99% synthetic graphite, in all aspects of G & G1 Bands shows no defect, and is highly pure and crystalline.
The sharpness of the peak at the given bands tells us that the bonds are for the most part very uniform in nature. RS Mines' 99%+ natural crystalline vein graphite, when compared to Sigma-Aldrich 99.99% synthetic graphite, RS Mines 99%+ natural crystalline vein graphite gives an edge over high purity synthetic and other types of graphites such as flake and amorphous, thus giving a natural enhancement in the end performance of your given application.