| prov:value
| - Representative common reducing agents include: Sodium sulfite, sodium arsenate, sodium thiosulfate, sulphurous acid, sodium thiosulphate, hydrogen sulfide, hydrogen iodide, stannous chloride, certain metals e.g. zinc, hydrogen, ferrous(II) sulfate or any iron(II) salt, titanium(III) sulphate, tin(II) chloride, tin(II) chloride and oxalic acid.
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