When the unit amount of the flux factor represents the metal or sulfur oxide, a certain desired amount of the oxidizing agent. Different metals and different oxidants have different flux coefficients.
The flux coefficients of sulfur and saltpeter are:
S + 2NaNO 3 = Na 2 O + 2NO + SO 3
32 2×85
170
Therefore, the sulfur nitrate flux coefficient is ——= 5.3. That is, it is necessary to oxidize a unit amount of sulfuric acid by 5.3 units of nitrate.
32
Different flux coefficients can be derived from the reaction of various metals with different oxidants. The table below lists the flux coefficient and oxygen coefficient values ​​for various materials as a basis for calculation of charge composition.
Flux coefficient and oxygen coefficient of various substances | ||||||
Substance name | Atomic quantity or number of moles | Oxide | Oxygen coefficient | Flux coefficient | ||
Acidic | Alkaline | NaNO 3 | MnO 2 | |||
Cu (- price) | 63 | Cu 2 O | 　 | 0.127 | 0.46 | 0.7 |
Zn | 65 | ZnO | 　 | 0.246 | 0.87 | 1.35 |
Pb | 207 | PbO | 　 | 0.077 | 0.28 | 0.43 |
Fe | 56 | FeO | 　 | 0.285 | 1.01 | 1.57 |
S | 32 | SO 3 | 　 | 　 | 5.3 | 8.3 |
CaO | 56 | CaO | 　 | 0.285 | 　 | 　 |
NaNO 3 | 85 | Na 2 O | 　 | 0.094 | 　 | 　 |
MnO 2 | 87 | MnO | 　 | 0.184 | 　 | 　 |
Na 2 CO 3 | 100 | Na 2 O | 　 | 0.151 | 　 | 　 |
Na 2 O | 62 | Na 2 O | 　 | 0.258 | 　 | 　 |
SiO 2 | 60 | SiO 2 | 0.534 | 　 | 　 | 　 |
Na 2 B 4 O 7 | 202 | 2B 2 O 3 · Na 2 O | 0.477 | 0.079 | 　 | 　 |
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