Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3780Chemical news office., 1932 |
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Strona 181
... agent . The ammonium salt was prepared by passing dry ammonia gas into a solution of p - toluic acid dissolved in ether ( 12 ) . A saturated solution of ammonium p - toluate was prepared in this manner and used in place of the saturated ...
... agent . The ammonium salt was prepared by passing dry ammonia gas into a solution of p - toluic acid dissolved in ether ( 12 ) . A saturated solution of ammonium p - toluate was prepared in this manner and used in place of the saturated ...
Strona 182
... agent , since strontium and barium sul- phates may be removed from the calcium sulphate in a water solution . This separation is made by adding 5 cc . of water to the acetone solution and then evaporating to remove the acetone . The ...
... agent , since strontium and barium sul- phates may be removed from the calcium sulphate in a water solution . This separation is made by adding 5 cc . of water to the acetone solution and then evaporating to remove the acetone . The ...
Strona 192
... Agents , of 5 , Chancery Lane , London , who will give free advice to readers mentioning " Chemical News . " New Patents ... agent is used that ferric chloride is formed and carried forward with the chlorinating gases to react with ...
... Agents , of 5 , Chancery Lane , London , who will give free advice to readers mentioning " Chemical News . " New Patents ... agent is used that ferric chloride is formed and carried forward with the chlorinating gases to react with ...
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94 per cent acetic acetone acid added addition agent alcohol ammonium carbonate ammonium hydroxide atom barium and strontium barium nitrates basic calcium and strontium calcium nitrate calories Chem Chemical Chemistry chloride Clinic collinsics combination concentrations containing copper corrosion course Crystalline precipitate desired determine dilute dissolved drops effect elements estimated evaporated experimental filter filtrate forms given gives green Heat Heavy pp't Heavy precipitate indicates Industrial interest London magnesium metals method minutes mixture Molecules nature nitrates of barium Number obtained oxalate oxygen p-bromobenzoate p-toluate p-toluic acid passing Patents per-rhenate points possible potassium potassium chromate precipitate shows prepared presence procedure production Reactions relative Research residue salts Sample solutions saturated separation September sodium solid soluble solvents stand stirring structure substances suitable sulphur Table temperature Test tion Trade Marks treated treatment various volume workers