A Manual of Metallurgy: More Particularly of the Precious Metals, Including the Methods of Assaying Them

action added alkaline alloy amalgam ammonia antimony aqua regia arsenic assay bismuth blowpipe boiling borax brittle carbonate charcoal chloride chloride of silver coal color combined composition compound condensing containing converted cooling copper crucible crystalline crystals cupel decomposed deposit dilute dissolved distilled dried employed equivalent evaporated excess filtered flame flux formed furnace fused fusible fusion glass gold grains heat hence hydrated hydrochloric acid hydrogen hydrosulphuric acid inch insoluble iron lastly latter lead lime litharge malleable mass melted mercury metal mixed mixture muffle nitrate nitric acid obtained operation ordinary oxide oxygen palladium passing placed plate platinum portion potash potassa potassium pound powder precipitate produced proportion protoxide pure readily reduced removed rendered salt separated sesquioxide silica slag soda sodium soluble solution specific gravity sulphate sulphide sulphide of ammonium sulphuric acid surface temperature terchloride throw tion tube volatile washed weight yellow zinc