1. Morphology: Sodium alginate yog cov hmoov dawb lossis daj daj, yuav luag tsis muaj ntxhiab thiab tsis qab.
2. Solubility: Sodium alginate yog yooj yim soluble hauv dej, tab sis insoluble hauv organic solvents xws li ethanol, ether, thiab chloroform. Thaum yaj hauv dej, nws tsim cov kua nplaum. Sodium alginate hmoov yuav ntub thaum sib cuag nrog dej; Lub hydration ntawm cov khoom ua rau lawv cov nplaum nplaum, thiab cov khoom sai sai ua ke los ua pawg. Cov clumps ces maj mam thiab tag hydrate thiab yaj. Yog hais tias cov dej muaj lwm cov tebchaw uas sib tw nrog alginate, sodium alginate tseem soluble tsawg. Qab Zib, starches, los yog proteins nyob rau hauv dej yuav txo cov hydration ntawm sodium alginate, ncua sij hawm sib tov. 1% aqueous tov muaj pH ntawm 6-8; Nws cov viscosity ruaj khov ntawm pH 6-9, thiab txo qis thaum kub siab tshaj 80 degree.
3. Toxicity: Sodium alginate tsis yog - lom. Raws li cov lus A.2 ntawm lub teb chaws tus qauv GB2760, sodium alginate tuaj yeem siv los ua cov thickener hauv ntau cov khoom noj hauv cov nqi tsim nyog raws li xav tau rau kev tsim khoom.
4. Kev khi nrog lwm yam Ions: Ntawm cov hlau ntsev ntawm alginate, tsuas yog Na, K, Mg, thiab ammonium ions soluble hauv dej; lwm cov ntsev ntsev yog insoluble. Siv cov cuab yeej no, hu rau colloidal tov ntawm sodium alginate nrog calcium ions tuaj yeem tsim cov calcium alginate gel. Cov txheej txheem tsim cov gel tuaj yeem tswj tau los ntawm kev kho tus nqi pH, xaiv cov ntsev calcium uas tsim nyog, thiab ntxiv cov phosphate buffer lossis chelating tus neeg sawv cev.
5. Kev ruaj ntseg: Qhuav sodium alginate yog qhov ruaj khov heev thaum khaws cia rau hauv lub qhov dej - kaw lub thawv ntawm 25℃thiab qis dua. Sodium alginate daws yog ruaj khov ntawm pH qhov tseem ceeb ntawm 5 thiab 9. Cov calcium gel tsim los ntawm sodium alginate yog ib qho thermally irreversible gel.
