Chemical News and Journal of Industrial Science, Tomy 131-132Chemical news office., 1925 |
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Strona 17
... solution of ammonium acetate is taken advantage of in the removal and solution of the lead left with the insoluble tuaterial after being digested with dilute alphuric acid and alcohol , in which mixture lead sulphate is practically ...
... solution of ammonium acetate is taken advantage of in the removal and solution of the lead left with the insoluble tuaterial after being digested with dilute alphuric acid and alcohol , in which mixture lead sulphate is practically ...
Strona 18
... solution and finally oxidised . The occasional addition of a few cc . of concen- trated nitric acid will aid in the oxidation . When the solution has become colourless or a pale straw colour , cool and dilute with a few cc . of cold ...
... solution and finally oxidised . The occasional addition of a few cc . of concen- trated nitric acid will aid in the oxidation . When the solution has become colourless or a pale straw colour , cool and dilute with a few cc . of cold ...
Strona 19
... solution . cc . Sulphuric Acid . - Alcohol Mixture . - To 500 cc . of water add 50 cc . of strong sul- phuric acid and from 100 to 200 cc . of alcohol , 95 % . Make up to a litre with water . Potassium Cyanide . - 10 % solution ...
... solution . cc . Sulphuric Acid . - Alcohol Mixture . - To 500 cc . of water add 50 cc . of strong sul- phuric acid and from 100 to 200 cc . of alcohol , 95 % . Make up to a litre with water . Potassium Cyanide . - 10 % solution ...
Strona 20
... solution containing lead would offer no difficulty , however , for as much as 0.1 % can be held in solution by 1 cc . of 10 % KCN solution , the stable Cu , ( CN ) , being formed . be extracted from Starch .-- Lead may starch by a cold ...
... solution containing lead would offer no difficulty , however , for as much as 0.1 % can be held in solution by 1 cc . of 10 % KCN solution , the stable Cu , ( CN ) , being formed . be extracted from Starch .-- Lead may starch by a cold ...
Strona 21
... solution of sodium hydroxide , giving a characteristic cornflower blue colouration , and its melting point is ... solution was diluted with 20 grs , of water , and titrated by means of thio- sulphate solution . This analysis gives ...
... solution of sodium hydroxide , giving a characteristic cornflower blue colouration , and its melting point is ... solution was diluted with 20 grs , of water , and titrated by means of thio- sulphate solution . This analysis gives ...
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