1
Chemicals employed in the treatment of water such as for softening, purifying, descaling, clarifying, sterilizing and otherwise improving the same Chemical compositions which are sold for use as corrosion and/or scale inhibitors in municipal and industrial waters, cooling waters, refrigeration brines, steam generators or boilers, steam condensate return systems, water used in mining operations, and water used in the manufacture of pulp and paper Chemical compositions which are sold for the prevention or reduction of foaming in evaporators, steam generators, in water for use in textile processes, in water for use in the pulp and industry and in other manufacturing processes Chemical additives for pulp and paper manufacture Chemicals used to flocculate and clarify industrial and municipal waste waters; chemicals used in the treatment of industrial waste waters; chemicals used to remove heavy metal contaminants from industrial waste waters; chemicals used to decolorize industrial waste waters Chemicals used in the processing of ferrous and non ferrous minerals including agglomeration agents, flocculants, dewatering agents, dust control additives, red-mud flocculants, mineral processing antifoams, and scale inhibitors Refractory binders; hydraulic fluids; coagulants; chemical emulsion breakers for use in oily waste water; chemicals that inhibit or remove slag formation in boilers, chemicals that inhibit corrosion and chemicals that prevent color degradation in fuel oils Artificial resins including ion exchange resins, chemical products for the manufacture and working of metal, including coolants for cutting, drawing, and forming operations, chemical additives to be used in preservatives against rust and in corrosion inhibitors Silica sols used in the catalyst, paper, and electronic wafer polishing industries Chemicals for use in conditioning and protecting minerals against freezing
3
Cleaning, polishing, scouring and abrasive preparations
5
Chemicals for preventing and controlling the growth of algae, bacteria, and slime in industrial water systems Chemicals used to control the growth of bacteria, algae and slime in the manufacture of pulp and paper Agricultural chemicals namely biocides for irrigation and soil sterilants
42
Consulting services in connection with the treatment of industrial water systems to prevent scale, corrosion, and microbiological growth; solids/water separation analysis and bacterial analysis of water; prediction concerning future organism growth; advice regarding future control or organism growth Consulting services in connection with the use of specialty chemicals in the pulp and paper, mining, mineral processing, metals manufacturing, and food industries