Practical Blowpipe AssayingD. Van Nostrand, 1881 - 210 ページ |
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alloy amalgam antimony arsenic arsenide assay batéa bead bismuth blowpipe blue flame boil bromine button carbonate Cents Fine Dollars charcoal chlorine Class clear glass Cloth coal cobalt colour colourless compounds containing cooling copper crucible cupel diameter dissolved Dollars Cents easily Engineers English Mint Value filter finely powdered Fineness of Gold flux furnace fused fusion globule Gold Value grain borax glass heat hydrochloric acid Illustrated inch iridium iron litharge lithia matrass mercury method mineral mixed nickel nitric acid obtained opaque Ounce Fineness outer flame oxidised phosphate phosphate salt piece platinum platinum wire potash precipitate present pure reaction reduced requires retort roasting saturated scorify sesquioxide silica Silver Assay slag small quantity soda on charcoal solution steel sublimate substance sulphate sulphides Table tellurium titanic acid treated tube Value of Gold-continued Value per Ounce volatilised washed weight of lead whilst yellow yellowish zinc
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