The soldering flux is good or good hydrochloric acid with sulfuric acidWhat is the sulfuric acid soldering flux or hydrochloric acid, which is easy to use?
Sulfuric acid and hydrochloric acid are not suitable for welding flux, you want to see what, in general the rosin flux is best, but you have to solder iron, such as enamel basin, a class of things can use the solder paste, can certainly use diluted hydrochloric acid to remove rust, welding effect will be better.
The soldering flux is good or good hydrochloric acid with sulfuric acid
Industrial process for sodium hydroxide (1) filtration of sea water(2) adding excessive sodium hydroxide to remove calcium and magnesium ions and filterCa (2+) +2OH (-) =Ca (OH) 2 (slightly soluble)Mg (2+) +2OH (-) =Mg (OH): 2(3) adding barium chloride to remove sulfate ion and filter;Ba (2+) +SO4 (2-): =BaSO4(4) adding excess sodium carbonate, removing calcium ion, excessive barium ion, and filteringCa (2+) +CO3 (2-): =CaCO3Ba (2+) +CO3 (2-): =BaCO3(5) adding hydrochloric acid to remove excess carbonate ions2H (+) +CO3 (2-) =CO2 = +H2O(6) heating away carbon dioxide(7) feed into an ion exchange tower to further remove calcium and magnesium ions(8) electrolysis2NaCl+2H2O= (power) H2 = +Cl2 = +2NaOH
