The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . ling and by manipulat-ing the resistance. To Amalgamate Zincs. This may be verywell done by first iminersing the zincs in a solu-tion of dilute sulphuric acid and then in a bath ofmercury. A brush or cloth may be used to rubthem, so as to reach all points of the a large quantity is to be amalgamated^the following will be found to be a good method:Dissolve eight ounces of mercury in a mixtureFig. 124. consisting of two lbs. of hydrochloric and one lb. of nitric acid; when th
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . ling and by manipulat-ing the resistance. To Amalgamate Zincs. This may be verywell done by first iminersing the zincs in a solu-tion of dilute sulphuric acid and then in a bath ofmercury. A brush or cloth may be used to rubthem, so as to reach all points of the a large quantity is to be amalgamated^the following will be found to be a good method:Dissolve eight ounces of mercury in a mixtureFig. 124. consisting of two lbs. of hydrochloric and one lb. of nitric acid; when the solution is complete, add three lbs. moreof hydrochloric acid. The zinc is amalgamated by immersing itin this solution for a few seconds, quickly removing to a vat of clearwater and rubbing it, as in the first case, with a brush or cloth. If thesolution is kept in a covered vessel it may be used a number of all batteries in which acids are used the zincs should be kept wellamalgamated and should beremoved from the solutionwhen not in use. This is veryimportant and should not beoverlooked. C~.
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892
