Synthetic resins; chemicals, biological products, natural minerals, synthetic minerals used in industry, agriculture, horticulture, fish farming, forestry, aquariums, swimming pools; soil fertilizers and potting composts; water purifying chemicals; enzyme preparations for industrial purposes, namely pollution control; minerals for use in industry and for pollution control, namely as ion exchangers to purify and soften water; chemicals, biological products for the treatment, pollution control, decontamination, conditioning of open or confined waters, of ponds, lakes, ground waters, rivers, seas, oceans, canals, swimming pools, aquariums and of soils