Product Overview: Ammonium Carboxymethyl Cellulose (CMC-$\text{NH}_4$ ) Ammonium Carboxymethyl Cellulose (CMC-$\text{NH}_4$ ) is a high-performance, water-soluble and alkali-soluble polymer derived from natural cellulose. Unlike conventional sodium-based CMC (CMC-Na), CMC- $\text{NH}_4$ is unique for its low-ash or ash-free thermal decomposition property , making it an exceptional choice for specialized industrial applications where residual metal ions or ash must be strictly