Premium Ammonium CMC Powder - Cost-Efficient SCR Catalyst Binder (Ready to Ship) Product Characteristics Ammonium carboxymethylcellulose (CMC-NH₄) is a cellulose-based material synthesized by subjecting natural cellulose to a series of chemical derivatization reactions. The material appears as an odorless and tasteless white fine powder with favorable biocompatibility, and it can dissolve entirely in cold water to form transparent solutions with high viscosity. This material