The Hunt And Douglas Process for Extracting Copper From Its Ores With An Append
The Hunt And Douglas Process for Extracting Copper From Its Ores With An Append
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24 The solution of the permanganate should be kept in a glass-stoppered bottle and should be tested from time to time with a solution containing a known weight of iron. For this purpose, instead of iron wire, which re- quires some time to dissolve in acid, we may conveniently use the double sulphate of protoxyd of iron and ammonia (ammonio-ferrous sulphate). The green readily soluble crystals of this salt contain exactly one-seventh their weight of iron, so that 35 grains of this salt, with 20 ...drops of sulphuric acid dissolved in half a pint of water, correspond to a solution of 5 grains of metallic iron.
n. PREPARATION AND USE OF IRON SPONGE.
The use of spongy metallic iron for precipitating copper in a metallic condition from its solutions was proposed in 1859 by Mr. William Gossage, of Widnes, England, to whom letters patent for improve- ments in extracting copper were then granted in Great Britain, the dates of the specification being March 7 and September 7 of that year (patent No.
What to read after The Hunt And Douglas Process for Extracting Copper From Its Ores With An Append?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Sterry Hunt to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
24 The solution of the permanganate should be kept in a glass-stoppered bottle and should be tested from time to time with a solution containing a known weight of iron. For this purpose, instead of iron wire, which re- quires some time to dissolve in acid, we may conveniently use the double sulphate of protoxyd of iron and ammonia (ammonio-ferrous sulphate). The green readily soluble crystals of this salt contain exactly one-seventh their weight of iron, so that 35 grains of this salt, with 20 ...drops of sulphuric acid dissolved in half a pint of water, correspond to a solution of 5 grains of metallic iron.
n. PREPARATION AND USE OF IRON SPONGE.
The use of spongy metallic iron for precipitating copper in a metallic condition from its solutions was proposed in 1859 by Mr. William Gossage, of Widnes, England, to whom letters patent for improve- ments in extracting copper were then granted in Great Britain, the dates of the specification being March 7 and September 7 of that year (patent No.
What to read after The Hunt And Douglas Process for Extracting Copper From Its Ores With An Append?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Sterry Hunt to read onlineMoreLess
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