Chemical products for industrial purposes; chemical products for paper manufacture; chemical products for oil production; chemical preparations used to protect against corrosion in the metalworking, petroleum and shipping industries; chemical pH stabilizers and pH buffers used for preserving fuels as well as technical products, namely, water-soluble and non water-soluble metalworking fluids, technical oils, diesel fuel and bilge water for vessels for use in the metal working, petroleum, and shipping industries; chemical substances for use in the industry; chemical preparations for use in the industry; chemical preparations used as sulfide and/or oxygen scavenger in water circulation systems; chemical preparations used as sulfide and/or oxygen scavenger in the oil and gas industry