Humic acid, sodium salt, 45-70%, technical, (as humic acid)..
Hydrazine hydrate, 100% (Hydrazine, 64%)..
Hydridotetrakis(triphenylphosphine)rhodium(I)..
Hydriodic acid, ACS reagent, 55% in water, without stabilizer..
Hydriodic acid, for analysis, 57 wt.% aqueous solution, distilled, stabilized..