CHEMICALS           AMMONIUM CHLORIDE ANTIMONY TRIOXIDE BARIUM CARBONATE BARIUM CHLORIDE BARIUM HYDROXIDE BARIUM NITRATE BETA NAPHTHOL BON ACID CITRIC ACID GUM ROSIN LACTIC ACID LITHOPONE MANGANESE CARBONATE MANGANESE CHLORIDE MANGANESE SULPHATE MELAMINE OXALIC ACID PHOSPHORIC ACID POLYVINYL ALCOHOL POTASSIUM PERMANGANATE SEBACIC ACID STRONTIUM CARBONATE TITANIUM DIOXIDE TRISODIUM PHOSPHATE ZINC CARBONATE ZINC OXIDE ZINC SULPHATE