… - - Other Diamond is a crystalline and allotropic form of carbon with, in the pure state, a very high refractive index … and other polycrystalline diamond-aggregates, including carbonados, which are harder than transparent diamonds. …
… solely as a solvent). This electrolysis is carried out in carbon lined baths which act as the cathode; carbon bars are used as anodes. The aluminium is deposited …
… acetone or toluene) or super-critical fluids (such as carbon dioxide gas under pressure). (4) Extraction from the … modified (other than by the removal of terpenic hydrocarbons), so that the composition of the resulting product …
