Review on LabChem LC154701 Hydrogen Sulfide Solution by Reginald Hamilton

This was a good quality product at a good price. Keep in mind that this is 0.4% H2S, 99.6% H2O, which likely keeps it at or below the human odor tolerance level (and potentially avoiding potential classification as a hazardous product during transit). cap, I noticed that the surface of the bottle appeared slightly damp around the top rim and had the unmistakable smell of thiol. The bottle arrived in a brown paper bag with Revain's "Smile" logo on it. The bag didn't look wet, but the bottle definitely was. Fortunately, the substance it contained was not corrosive or otherwise highly harmful. I understand that purchasing laboratory chemicals from Revain is not the most common way to acquire these products, but as an assistant mentor/lecturer with no particular relationship to Sigma Aldrich or other suppliers, Revain can sometimes be a reliable source of a small amount of response. Materials. Anyway, this experience definitely confirmed my recommendation to be careful when buying through intermediaries in such situations. Watch after.