Sodium alginate waa wax soo saar laga soo saaro iodine iyo mannitol algae brown sida kelp ama badeedka. Unuggiisu waxa uu ka kooban yahay β-D-mannuronic acid (M) iyo α-L-guluronic acid (G) oo ku xidhan (1 → 4) bonds. Xalka aqueous sodium alginate waxa uu leeyahay viscosity sare oo waxa loo isticmaalay sidii dhumuc, xasiliye, emulsifier, iwm ee cuntada. Sodium alginate waa cunto aan sun ahayn oo lagu daray Maraykanka Pharmacopeia horraantii 1938. Sodium alginate waxaa ku jira xaddi badan oo - COO -, kaas oo soo bandhigi kara dabeecadda polyanionic ee xal aqueous oo leh heer gaar ah oo ku dheggan. Waxa loo isticmaali karaa sida xambaara daawada lagu daaweyo nudaha xabkaha. Marka la eego xaaladaha acidic, - Marka COO - loo beddelo COOH, heerka ionization ayaa hoos u dhacaya, hydrophilicity ee sodium alginate ayaa hoos u dhacaya, silsiladda molecular hoos u dhacdaa, iyo qiimaha pH waxay kordhisaa kooxda COOH si joogto ah u kala qaybsama, kordhinta hydrophilicity ee alginate sodium iyo fidinta silsiladda molecular. Sidaa darteed, alginate sodium waxay leedahay dareenka pH ee muhiimka ah. Sodium alginate waxay si dhakhso ah u samayn kartaa jel marka ay jiraan xaalado aad u khafiif ah. Marka ay jiraan cations sida Ca2+iyo Sr2+, Na+on the G unit ayaa isweydaarsan doona cations kala duwan, unugga G-na wuxuu isku xiri doonaa si uu u sameeyo qaab-dhismeedka shabakad isku xiran, sidaas darteed sameynta hydrogel. Xaaladaha ay ka kooban tahay sodium alginate jel waa khafiif, taas oo ka fogaan karta firfircoonida daawooyinka xasaasiga ah, borotiinada, unugyada, enzymes iyo walxaha kale ee firfircoon. Sababo la xiriira guryahan aadka u wanaagsan, sodium alginate ayaa si weyn loogu isticmaalay warshadaha cuntada iyo beeraha dawooyinka.