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Sodium hydrosulfide 32% 70% CAS 16721-80-5
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Product:                 Sodium Hydrosulphide 70%min yellow flakes

CAS.:                     16721-80-5

Molecular formula:  NaHS


The chemical compound with the formula NaHS. A useful reagent for the synthesis of organic and inorganic sulfur compounds. It is a colorless solid that typically smells like H2S due to hydrolysis by atmospheric moisture. In contrast with Na2S, which is insoluble in organic solvents, NaHS, being a 1:1 electrolyte, is more soluble. Alternatively, in place of NaHS, H2S can be treated with an organic amine to generate an ammonium salt. Solutions of SH- are sensitive to oxygen, converting mainly to polysulfides, indicated by the appearance of yellow.


NaHS (%)                               70.0 Min

Na2S (%)                                1.5 Max

Na2SO3 (%)                            1.0 Max

Fe (%)                                    0.003 Max

NaCO3 (%)                             0.6Max

Matter insoluble in water (%)   0.005Max


Its main uses are in paper manufacture as a makeup chemical for sulfur used in the Kraft process, as a flotation agent in copper mining where it is used to activate oxide mineral species, and in the leather industry for the removal of hair from hides.



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