1 Chemical substances for use in industry, science, photography, agriculture, horticulture and forestry, namely, nitrocellulose and nitrocellulose derivatives used in the production of graphic inks, varnishes and lacquers for wood and leather, automotive paints and cosmetics; cellulose and cellulose derivatives, namely, ethers for industrial purposes; hydrofluoric acid, used as raw material in the production of fluorides, refrigerant gases, cryolite, manufacturing detergents, polytetrafluoroethylene all used for the purification of ores, alkylation of petroleum; sulfuric acid, used in the manufacture of fertilizers, aluminum sulfate, cellulose, ethyl alcohol and pharmaceutical products, in the treatment of metals and ores, accumulators and textile fibers; oleum, used in the manufacture of hydrofluoric acid and nitrocellulose, applied in detergents, agricultural pesticides, pharmaceutical products, explosives and dyes, and in the refining of mineral oils; artificial resins and unprocessed plastic; fertilizers; chemical substances for agriculture, except fungicides, herbicides, insecticides and parasiticide for analyses in laboratories, other than for medical or veterinary purposes; leather glues for industrial and commercial use; chemical substances for waterproofing leather; tempering chemicals for use in soldering; tanning substances, adhesives and binders for use in the industrial manufacture of leather; nitrocellulose