Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 4
... formed ; these dissolve both in oxalic acid and in water . They are double com- pounds of niobic or tantalic acid with oxalic acid ; on evaporating an acid earth solution in tartaric acid these threads are never formed , but if niobic ...
... formed ; these dissolve both in oxalic acid and in water . They are double com- pounds of niobic or tantalic acid with oxalic acid ; on evaporating an acid earth solution in tartaric acid these threads are never formed , but if niobic ...
Strona 14
... formed ; after some time it becomes more voluminous , and contains all the dissolved titanium , while the liquid is quite free from titanium . Thus this method provides a means of separating both niobic and tantalic acid quantitatively ...
... formed ; after some time it becomes more voluminous , and contains all the dissolved titanium , while the liquid is quite free from titanium . Thus this method provides a means of separating both niobic and tantalic acid quantitatively ...
Strona 15
... formed by the hydrolytic decomposition of a solu- tion of borax . This fusion mixture has a very strong solvent effect on niobic and tantalic acid ; a melt which in the liquid state covered the bottom of a fairly large platinum crucible ...
... formed by the hydrolytic decomposition of a solu- tion of borax . This fusion mixture has a very strong solvent effect on niobic and tantalic acid ; a melt which in the liquid state covered the bottom of a fairly large platinum crucible ...
Strona 23
... formed . Metallic Iridodisulphates . - Marcel Delépine . - Two series of metallic iridodisulphates exist , the green and the red - brown salts . The former appear to be derived from a ( H2O ) OH¬ dibasic acid of formula SO4- [ IS H2 ...
... formed . Metallic Iridodisulphates . - Marcel Delépine . - Two series of metallic iridodisulphates exist , the green and the red - brown salts . The former appear to be derived from a ( H2O ) OH¬ dibasic acid of formula SO4- [ IS H2 ...
Strona 27
... formed , the whole mass solidifies in a yellow cake of radiating crystals , and is not suitable for a separation . The melt is dissolved in warm water , so that the crucible lying on its side is just covered with water ; it is warmed ...
... formed , the whole mass solidifies in a yellow cake of radiating crystals , and is not suitable for a separation . The melt is dissolved in warm water , so that the crucible lying on its side is just covered with water ; it is warmed ...
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