gases, chemicals, and mixtures thereof for general, industrial, electronic, non-medical, laser and specialty uses; gases to provide biological, artificial and inert atmospheres; sterilizing gas mixtures; chemical fluxes; flow-through carbon dioxide laser mixtures; tempering chemicals and gases for metal working; gases and chemicals for cleaning and etching of semiconductors; gases and chemicals used in the manufacture of plastics; fire extinguishing compositions; industrial and non-medical specialty gases including cryogenic gases, argon, neon, xenon, krypton, phosgene, ethylene, methane, propane, helium, oxygen, sulfur dioxide, nitric oxide, nitrous oxide, nitrogen dioxide, carbon monoxide, carbon dioxide, hydrogen, chlorine, fluorine, deuterium, nitrogen, ethylene, hygrogen sulfide, ammonia, and halocarbons for the manufacture of electrical and electronic porducts, metal goods, ceramics, biotechnological products, medical products, chemical solutions, mixtures and compositions for industrial products, paper products, plastic products, food products, and for blanketing, inert, doping, conditioning and industrial gas atmospheres