6 CHEMICALS AND CHEMICAL COMPOSITIONS FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS-NAMELY, PHOSPHORIC ACID, ALKALI PHOSPHATES, ORGANIC PHOSPHATES, ALUMINA, ALUMINA GELS, ALUMINA COMPOUNDS, SILICIC ACID AND SILICON DIOXIDE; STERILIZING AND SANITIZING AGENTS; SMELTING SALTS FOR USE IN THE MANUFACTURE OF CHEESE; WATER SOFTENING PREPARATIONS; MORDANTS; FLOCCULATING AGENTS AND WATER HARDNESS TESTING PREPARATIONS; CHEMICALS FOR PHOTOGRAPHIC PURPOSES; FIRE EXTINGUISHING AGENTS; HARDENING AGENTS; LEATHER DRESSINGS AND PRESERVATIVES, SIZING AND TANNING AGENTS; EMULSIFIERS; LAUNDRY STARCHES AND DYES; RUST AND CORROSION INHIBITORS