Isotopically pure diamond C or 100% C. The isotopes of carbon can be separated in the form of carbon dioxide gas by cascaded chemical exchange reactions with amine carbamate. Such CO can be converted to methane and from there to isotopically pure synthetic diamonds. Isotopically enriched diamonds have been synthesized by application of chemical vapor deposition followed by high pressure. The C isotopically pure, (or in practice 15-fold enrichment of isotopic number, 12 over 13 for carbon) diamond gives a 50% higher thermal conductivity than the already high value of 900-2000 W/(m·K) for a normal diamond, which contains the natural isotopic mixture of
ACS Award in Pure Chemistry award was first awarded in 1931, with Linus Pauling the inaugural recipient. It is sponsored by the Alpha Chi Sigma Fraternity and the Alpha Chi Sigma Educational Foundation. Source: American Chemical Society List of prizes, medals and awards ACS Award in Pure Chemistry The American Chemical Society Award in Pure Chemistry is awarded annually by the American Chemical Society (ACS) "to recognize and encourage fundamental research in pure chemistry carried out in North America by young men and women." "Young" means born within 35 years of the awarding of the Award, which takes place at the Spring meeting of the