Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3780Chemical news office., 1932 |
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Strona 183
... gives no precipitate upon the addition of 10 cc . of acetone to the potassium chromate filtrate , whereas a solution containing 100 mg . of barium and 5 mg . of strontium gives a heavy precipitate . PROCEDURE FOR SEPARATION OF ALKALINE ...
... gives no precipitate upon the addition of 10 cc . of acetone to the potassium chromate filtrate , whereas a solution containing 100 mg . of barium and 5 mg . of strontium gives a heavy precipitate . PROCEDURE FOR SEPARATION OF ALKALINE ...
Strona 184
... gives a green patina , which , however , breaks down under severe weather conditions . A patina stable under the latter conditions is produced by anodic treatment for 15 minutes in a suitable electrolyte ; it has a good green colour and ...
... gives a green patina , which , however , breaks down under severe weather conditions . A patina stable under the latter conditions is produced by anodic treatment for 15 minutes in a suitable electrolyte ; it has a good green colour and ...
Strona 192
... give free advice to readers mentioning " Chemical News . " New Patents . These particulars of New Patents of interest to readers have been selected from the Official Journal of Patents and are published by per- mission of the Controller ...
... give free advice to readers mentioning " Chemical News . " New Patents . These particulars of New Patents of interest to readers have been selected from the Official Journal of Patents and are published by per- mission of the Controller ...
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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