LOOK!WE ARE PUSH-SELLING IT NOW! Sodium Hydrosulphide 70% 10PPM Molecular formula:NaHS Molecular weight: 56.06 ... 5 Molecular formula:NaHSMolecular weight: 56.06Synonyms: sodium hydrogen sulphide, sodium hydrogen sulfide, sodium sulfhydrate, sodium bisulphideCharacteristic: Yellow flake, easily being deliquescent, ... also in the sulfurous acid dyeing of manmade fibres. Sodium Hydrosulphide 70% flake