It is a kind of high molecular polymer with hydrophilic group. It appears odorless and tasteless white powder or granule. It will form transparent solution of great viscosity while slowly dissolved into water. The viscosity is engendered by the dissociation of numerous anions and hence causes the growth of molecular chain not by expansion of water absorption that normally happens to CMC and sodium alginate. The viscidity is about 15~20 times higher than CMC and sodium alginate. It shows high alkali-resistant, minor change in viscosity after longtime storage, and not easily decaying.