Sodium Stearate ya Anionic Surfactant ndi Sopo
Tsatanetsatane wa Zamalonda
| Dzina lachingerezi | Sodium stearate |
| Nambala ya CAS | 822-16-2 |
| Molecular formula | C18H35NaO2 |
| Kulemera kwa maselo | 306.45907 |
| Nambala ya EINECS | 212-490-5 |
| Malo osungunuka 270 ° C | |
| Kachulukidwe 1.07 g/cm3 | |
| Zosungirako | 2-8 ° C |
| Kusungunuka | Kusungunuka pang'ono m'madzi ndi ethanol (96 peresenti). |
| Fomu | Ufa |
| Mtundu | woyera |
| Kusungunuka kwamadzi | ZOsungunuka M'MADZI OZIZIRA NDI WOTSOTSA |
| Kukhazikika | Chokhazikika, chosagwirizana ndi ma oxidizing amphamvu. |
Mawu ofanana ndi mawu
Bonderlube235; flexichemb; prodhygine; stearatedesodium; stearic acid, sodium mchere, kusakaniza kwastearic ndi palmiticfattychain; NatriumChemicalbookstearat; Octadecanoicacidsodium mchere, Stearicacidsodium mchere; STEARICACID,SODIUMSALT,96%,MIXTUREOFSTEARICANDPALMITICFATTYCHAIN
Chemical Properties
Sodium stearate ndi ufa woyera, wosungunuka pang'ono m'madzi ozizira, ndipo umasungunuka mofulumira m'madzi otentha, ndipo samatulutsa crystalline pambuyo pozizira mu sopo wotentha kwambiri. Imakhala ndi emulsifying yabwino, yolowera komanso yolepheretsa, imakhala ndi fungo lamafuta, komanso imakhala ndi fungo lamafuta. Imasungunuka mosavuta m'madzi otentha kapena madzi akumwa, ndipo yankho lake ndi lamchere chifukwa cha hydrolysis.
Kugwiritsa ntchito
Ntchito zazikulu za sodium stearate: thickener; emulsifier; dispersant; zomatira; corrosion inhibitor 1. Chotsukira: chomwe chimagwiritsidwa ntchito poletsa thovu pakutsuka.
2. Emulsifier kapena dispersant: amagwiritsidwa ntchito polima emulsification ndi antioxidant.
3. Corrosion inhibitor: Ili ndi zoteteza mu filimu yopangira ma cluster.
4. Zodzoladzola: kumeta gel osakaniza, zomatira zowonekera, etc.
5. Zomatira: zimagwiritsidwa ntchito ngati guluu wachilengedwe poyika mapepala.
Kufotokozera
Sodium stearate ndi mchere wa sodium wa stearic acid, womwe umadziwikanso kuti sodium octadecate, womwe umagwiritsidwa ntchito kwambiri ndi anionic surfactant komanso chigawo chachikulu cha sopo. The hydrocarbyl moiety mu sodium stearate molekyulu ndi gulu hydrophobic, ndipo carboxyl moiety ndi gulu hydrophilic. M'madzi a sopo, sodium stearate ilipo mu micelles. Micelles ndi yozungulira ndipo imakhala ndi mamolekyu ambiri. Magulu a hydrophobic ali mkati ndipo amaphatikizidwa wina ndi mzake ndi mphamvu za van der Waals, ndipo magulu a hydrophilic ali kunja ndikugawidwa pamwamba pa micelles. Ma micelles amamwazikana m'madzi, ndipo akakumana ndi madontho osasungunuka amafuta osasungunuka ndi madzi, mafutawo amatha kumwazikana kukhala madontho abwino amafuta. Gulu la hydrophobic la sodium stearate limasungunuka mu mafuta, pamene gulu la hydrophilic Limayimitsidwa m'madzi kuti liwonongeke. M'madzi olimba, ma ion a stearate amaphatikizana ndi calcium ndi ma magnesium ayoni kupanga ma calcium osasungunuka m'madzi ndi mchere wa magnesium, kuchepetsa kutsekemera. Kuphatikiza pa sodium stearate, sopo imakhalanso ndi sodium palmitate CH3(CH2)14COONa ndi mchere wa sodium wamafuta ena acid (C12-C20).
