... -1 Molecular Weight: 120.06 PH Moins Sodium bisulphate 95%, 98%Properties: PH MOINS, also known ... as sodium hydrogen sulfate (NaHSO4), is an acid salt. ... stored. The anhydrous form is hygroscopic. Solutions of sodium bisulfate are acidic, with a 1M solution having ... chemical industry, raw material for sulfate salts and sodium alum, and slso used as petroleum artesian well ...