FAQ How do you use ammonium sulfate as an auxiliary Using ammonium sulfate for dyeing Ammonium sulfate NH 4 2 SO 4 is an acid-forming salt used as an acid in dyeing wool It can be substituted for vinegar or citric acid -used ammonium alum machinery-,Used Industrial Storage Tanks Used Kettle Equipment Looking for reliable used industrial storage tanks Our inventory of industrial storage tanks and kettles includes aluminum stainless steel carbon steel glass lined fiberglass plastics and more Visit Federal Equipment to purchase manufacturing equipment directly …… Get More