次氯酸钠与次氯酸钙的有效氯含量比较
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The available chlorine:
Sodium hypochlorite （NaClO）- 35.5 / (23 + 35.5 + 16) = 47.7%
Calcium hypochlorite （Ca(ClO)2）- 71 / (40 +71 + 32) = 49.7% 2 hclo ─> 2 HCL + O2, both bleaching principle is the same
Both bleaching, but considering the economic factors in the process of production, Calcium hypochlorite is producing more economical, never remove impurities CaCl2 can see it.
Calcium hypochlorite is an effective ingredient of bleaching powder, sodium hypochlorite is an effective ingredient of 84 disinfectant. But it is not easy to sodium ion precipitation, calcium ion and many negative ion precipitation.