Chemical substance made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical. Chemical substances exist as solids, liquids, gases, or plasma, and may change between these phases of matter with changes in temperature or pressure. Chemical substances may be combined or converted to others by means of chemical reactions. Forms of energy, such as light and heat, are not matter, and are thus not "substances" in this
Element Six vapour deposition technology opened the opportunity to synthesize diamond films and a new raft of application areas became possible. In 2002, the company changed its name to Element Six and its business focus moved towards building an enterprise based on advanced material applications for increasingly sophisticated engineering customers backed by global technical support and a strong research and development organization. In 2013 Element Six opened the world’s largest and most sophisticated synthetic diamond research and development facility. The Global Innovation Centre, near Oxford, UK develops a pipeline of innovative synthetic diamond and related supermaterial products for customers, in industries from