Sodium Stearate don Anionic Surfactant da Sabulu
Cikakken Bayani
| Sunan Ingilishi | Sodium stearate |
| Lambar CAS | 822-16-2 |
| Tsarin kwayoyin halitta | Saukewa: C18H35NaO2 |
| Nauyin kwayoyin halitta | 306.45907 |
| Lambar EINECS | 212-490-5 |
| Matsayin narkewa 270 ° C | |
| Yawaita 1.07 g/cm3 | |
| Yanayin ajiya | 2-8 ° C |
| Solubility | Dan kadan mai narkewa a cikin ruwa kuma a cikin ethanol (kashi 96). |
| Siffar | Foda |
| Launi | fari |
| Ruwa mai narkewa | MAI RUWAN RUWAN SANYI DA RUWAN ZAFI |
| Kwanciyar hankali | Barga, rashin jituwa tare da karfi oxidizing jamiái. |
Makamantu
Bonderlube235; flexichemb; prodygine; stearatedesodium; stearic acid, sodium gishiri, cakude na stearican da palmiticfattychain; NatriumChemicalbookstearat; Octadecanoicacidsodium gishiri, Stearicacidsodium gishiri; STEARICACID, SODIUMSALT, 96%, MIXTUREOFSTEARICANDPALMITICFATTYCHAIN
Abubuwan Sinadarai
Sodium stearate wani farin foda ne, mai ɗan narkewa a cikin ruwan sanyi, kuma da sauri yana narkewa a cikin ruwan zafi, kuma baya yin kiristali bayan sanyaya cikin maganin sabulu mai zafi sosai. Yana da kyakkyawan emulsifying, shiga da kuma hanawa iko, yana da m ji, kuma yana da wani m wari. Yana da sauƙin narkewa a cikin ruwan zafi ko ruwan giya, kuma maganin shine alkaline saboda hydrolysis.
Aikace-aikace
Babban amfani da sodium stearate: thickener; emulsifier; mai watsawa; m; mai hana lalata 1. Detergent: ana amfani da shi don sarrafa kumfa yayin kurkura.
2. Emulsifier ko dispersant: amfani da polymer emulsification da antioxidant.
3. Mai hana lalata: Yana da kaddarorin kariya a cikin fim ɗin marufi.
4. Kayan shafawa: gel aske, m m, da dai sauransu.
5. Adhesive: ana amfani dashi azaman manne na halitta don manna takarda.
Bayani
Sodium stearate shine gishirin sodium na stearic acid, wanda kuma aka sani da sodium octadecate, wanda aka saba amfani da shi anionic surfactant da babban bangaren sabulu. Motsin hydrocarbyl a cikin kwayoyin sodium stearate rukuni ne na hydrophobic, kuma carboxyl moiety rukuni ne na hydrophilic. A cikin ruwan sabulu, sodium stearate yana cikin micelles. Micelles suna da siffar zobe kuma sun ƙunshi kwayoyin halitta da yawa. Ƙungiyoyin hydrophobic suna cikin ciki kuma an haɗa su da juna ta hanyar dakarun van der Waals, kuma ƙungiyoyin hydrophilic suna waje da rarraba a saman micelles. Miceles suna tarwatse a cikin ruwa, kuma lokacin da aka haɗu da tabon mai da ba za a iya narkewa da ruwa ba, ana iya tarwatsa mai cikin ɗigon mai mai kyau. Ƙungiyar hydrophobic na sodium stearate ta narke cikin mai, yayin da ƙungiyar hydrophilic An dakatar da shi a cikin ruwa don lalata. A cikin ruwa mai wuya, ions stearate suna haɗuwa tare da alli da magnesium ions don samar da calcium da magnesium salts na ruwa wanda ba zai iya narkewa ba, yana rage ƙazanta. Baya ga sodium stearate, sabulu kuma ya ƙunshi sodium palmitate CH3(CH2)14COONa da sodium salts na sauran fatty acid (C12-C20).
