Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3780Chemical news office., 1932 |
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Strona 184
... natural " green patina on copper con- sists normally of basic copper sulphate , methods have been worked out for the rapid production of an artificial patina of this substance . Treatment with ammon- ium sulphate solution followed by a ...
... natural " green patina on copper con- sists normally of basic copper sulphate , methods have been worked out for the rapid production of an artificial patina of this substance . Treatment with ammon- ium sulphate solution followed by a ...
Strona 189
... nature . ( e ) An atom of oxygen of E.O.V. 10.07 has in combination the R.V. 2.51 , thereby emitting 96155 calories , and its O.R. is 1.346 . This atom is distinguished by its neutral character . ( f ) An atom of H ( in hydroxyl ) of ...
... nature . ( e ) An atom of oxygen of E.O.V. 10.07 has in combination the R.V. 2.51 , thereby emitting 96155 calories , and its O.R. is 1.346 . This atom is distinguished by its neutral character . ( f ) An atom of H ( in hydroxyl ) of ...
Strona 191
... nature , e.g. , for help in meeting the expense of the education of children ; and ( 3 ) if necessary , the provision of legal and income - tax advice and assistance . Such an Association as is here envisaged would , of course , be ...
... nature , e.g. , for help in meeting the expense of the education of children ; and ( 3 ) if necessary , the provision of legal and income - tax advice and assistance . Such an Association as is here envisaged would , of course , be ...
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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