Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 166
... gives the best results when fluoride is present as an alkali salt . The excess of sodium carbonate also inter- feres ... give . Even in a solution containing only fluoride , the test is not sufficiently delicate to be of value . Lithium ...
... gives the best results when fluoride is present as an alkali salt . The excess of sodium carbonate also inter- feres ... give . Even in a solution containing only fluoride , the test is not sufficiently delicate to be of value . Lithium ...
Strona 169
... give insoluble cupric salts . Calcium nitrate is added to precipitate tartrate and fluoride ; borate is precipitated as the lead salt . Sodium carbonate is added to make the solution alkaline ; excess carbonate ions are removed by Ag + ...
... give insoluble cupric salts . Calcium nitrate is added to precipitate tartrate and fluoride ; borate is precipitated as the lead salt . Sodium carbonate is added to make the solution alkaline ; excess carbonate ions are removed by Ag + ...
Strona 175
... give the above Lecture , which will take place in the Goldsmiths ' Hall , Foster Lane , E.C. ( by courtesy of the Worshipful Company of Goldsmiths ) . The President of the Guild , the RT . HON . SIR SAMUEL HOARE , Bt . , G.B.E. , C.M.G. ...
... give the above Lecture , which will take place in the Goldsmiths ' Hall , Foster Lane , E.C. ( by courtesy of the Worshipful Company of Goldsmiths ) . The President of the Guild , the RT . HON . SIR SAMUEL HOARE , Bt . , G.B.E. , C.M.G. ...
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acetic acid acetone add 10 cc added addition alkaline alloys ammonium hydroxide analysis anions annealing arsenate arsenite barium and calcium barium nitrate boiling borate calcium nitrates carbonate Chem Chemical chloride chromate colour complete consisting containing Cool crystals cyanide Detection determine dilute discard dissolve distortion drops effect excess fatigue ferric ferrocyanide Filter filtrate flask fluoride followed formate forms give grams heat Heavy hydrogen hydroxide increase indicates insoluble Institution ions lead Lecture London material Mechanical metals methods minutes mixture moulds nickel obtained oxalate Patent phosphate plant portion potassium precipitate precipitate forms precipitation is complete present produced published reduction removed salts saturated Save Sensitivity Separation September shown silver Slight sodium soluble solution solution containing step studied Sub-Group sufficiently sulphide sulphuric acid tartrate temperature test tube thiocyanate thiosulphate tion various volume Wash the residue white precipitate wire Yellow