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env1ronment and 1ts EFFECTS
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acetate acetone acid adhesive alkaline aluminium amyl acetate applied bandage basic become benzotriazole bone bronze object Butvar calcium carbonate cause chemical chloride clay cleaning climate coats condition consolidant container copper corrosion products covered cuprous damp dilute dissolve easily emulsion evaporation excavation ferric chloride fibre glass field glue humus hydrochloric hydrochloric acid hydrogen hydroxide immersion impregnation insoluble ions iron kiln laboratory latex leached lifted material metal objects method mineral moisture mould necessary nitric acid non-metals obtainable oddsides ORGANIC ACTIVITY organic matter oxide oxygen packing parent rock particular penetrate pieces plaster of Paris plasticine Plenderleith podsol polythene polyvinyl polyvinyl acetate possible pottery relative humidity removed resin result rubber latex satisfactory scrim sheet shellac silica silver slightly soaked sodium sodium hydroxide soil soluble nylon soluble salts solution solvent sprayed suitable sulphide surface temperature toluene treatment vegetation wall washed wood