被硫化

These effects are antagonizeed by sodium sulfide.

这些硫化钠中和了。

While the reduction of the initial oxidized products on pyrite surface such as polysulphide and free sulphur can improve its hydrophilicity.

同时，黄铁矿面初始氧化产物如单质硫和多硫化物还原，亲水增强。