Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3779Chemical news office., 1932 |
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Strona 166
... increase the sensitivity of the test . Add 4 cc . of ethyl alcohol , and , if a precipitate forms , filter until the ... increased the sensitivity to the point where 1 mg . of fluoride ion in 4-5 cc . of solution could be detected easily ...
... increase the sensitivity of the test . Add 4 cc . of ethyl alcohol , and , if a precipitate forms , filter until the ... increased the sensitivity to the point where 1 mg . of fluoride ion in 4-5 cc . of solution could be detected easily ...
Strona 170
... increased the growth of grass but depressed the growth of clover . Phosphates on the other hand increase the proportion of clover in the herbage and so add greatly to its protein content . Phosphates , however , differ in their ...
... increased the growth of grass but depressed the growth of clover . Phosphates on the other hand increase the proportion of clover in the herbage and so add greatly to its protein content . Phosphates , however , differ in their ...
Strona 175
... increase of 26 per cent . in the case of 70 : 30 brass . The Distortion of Wires on Passing Through a Draw Plate . By G. I. TAYLOR and H. QUINNEY . Composite copper wires in . in dia- meter , each consisting of two wires of semi ...
... increase of 26 per cent . in the case of 70 : 30 brass . The Distortion of Wires on Passing Through a Draw Plate . By G. I. TAYLOR and H. QUINNEY . Composite copper wires in . in dia- meter , each consisting of two wires of semi ...
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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