Chemicals used in industry; catalysts; photocatalyst; titanate compounds and/or compositions; compositions for the manufacture of technical ceramics; ceramic materials in particulate form; chemical preparations for scientific purposes other than medical or veterinary uses; chemicals, chemical compositions and/or additives for paints; chemicals and chemical compositions for use in coatings or paints to provide an ultraviolet barrier; chemicals and/or chemical compositions for the decomposition of organic matter in water and air; chemicals and/or chemical compositions for the purification, disinfection and/or deodorisation of air and/or water; chemicals and chemical compositions for use in antibacterial coatings, paints and surface treatments; bacteriological preparation other than for medical or veterinary use; bacteriological compositions for use in coatings, paints and surface treatments; compounds and compositions for use in self cleaning coatings; preparations for the purification of gas; chemicals and chemical compositions for use in the production of hydrogen