Ammonium alginate is a chemical whose molecular formula is C6H7O6NH4. Alginic acid, also known as alginate or alginate, is a brown algae that is widely distributed in the cell wall of anionic polysaccharides, where it forms a viscous gel by binding to water. It is also a significant part of the biofilm produced by the bacteria Pseudomonas aeruginosa, which is cystic fibrosis in the main pathogen, conferring its high resistance to antibiotics and killing by macrophages. Its color range is white to tan. It is sold in the form of filaments, granules or powder. Used as a gum base sugar, thickener, stabilizer, emulsifier.