Nelson's Encyclopaedia: Everybody's Book of Reference ...Thomas Nelson, 1913 |
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الصفحة 279
... carbonate of soda for softening hard water , silicate of soda to harden and ... sodium oleate in forty parts of cold distilled water , and adding ten parts ... sodium oleate . The pressure inside a bubble va- ries inversely as the radius ...
... carbonate of soda for softening hard water , silicate of soda to harden and ... sodium oleate in forty parts of cold distilled water , and adding ten parts ... sodium oleate . The pressure inside a bubble va- ries inversely as the radius ...
الصفحة 288
... Soda , strictly speaking , is the base corresponding to the metal sodium , but used without prefix it generally implies anhydrous sodium carbonate , Na2CO3 . This salt , known also as ' scda ash , ' is obtained by evaporating the solu ...
... Soda , strictly speaking , is the base corresponding to the metal sodium , but used without prefix it generally implies anhydrous sodium carbonate , Na2CO3 . This salt , known also as ' scda ash , ' is obtained by evaporating the solu ...
الصفحة 289
... sodium hydroxide is elec- trolyzed , 2NaOH = 2Na + O2 + H2 , an open iron ... carbonate , 2NaHCO3 = Na2CO3 + H2O + CO2 . The am- monium chloride is heated ... sodium bisulphate , NaHSO4 , being primarily formed , NaCl + H2SO4 = NaHSÓ1 + ...
... sodium hydroxide is elec- trolyzed , 2NaOH = 2Na + O2 + H2 , an open iron ... carbonate , 2NaHCO3 = Na2CO3 + H2O + CO2 . The am- monium chloride is heated ... sodium bisulphate , NaHSO4 , being primarily formed , NaCl + H2SO4 = NaHSÓ1 + ...
الصفحة 290
... Sodium hydroxide , or caustic soda , NaOH , is also largely pre- pared by boiling sodium carbon- ate solution with milk of lime , Na2CO3 + Ca ( OH ) 2 = CaCO3 + 2NaOH . When the reaction is complete , the insoluble calcium carbonate is ...
... Sodium hydroxide , or caustic soda , NaOH , is also largely pre- pared by boiling sodium carbon- ate solution with milk of lime , Na2CO3 + Ca ( OH ) 2 = CaCO3 + 2NaOH . When the reaction is complete , the insoluble calcium carbonate is ...
الصفحة 300
... sodium silicate in which the sodium is united with from two to four equivalents of silica . It is prepared by fusing silica in the form of sand or flints with sodium carbonate , or with sodium sulphate and carbon , and extract- ing the ...
... sodium silicate in which the sodium is united with from two to four equivalents of silica . It is prepared by fusing silica in the form of sand or flints with sodium carbonate , or with sodium sulphate and carbon , and extract- ing the ...
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