Sodium stearate rau anionic surfactant thiab xab npum
Khoom Qhia Qhia
| Hmong npe | Sodium stearate |
| Tus lej | 822-16-2 |
| Molecular Cov Qauv | C18h35N35NYO2 |
| Molecular hnyav | 306.45907 |
| Einecs tooj | 212-490-5 |
| Melting point 270 ° C | |
| Qeeb 1.07 g / cm3 | |
| Kev Cia | 2-8 ° C |
| So | Me ntsis soluble hauv dej thiab hauv ethanol (96 ib xees). |
| Puab | Hmoov |
| Xim | xim dawb |
| Dej solubility | Soluble hauv dej txias thiab dej kub |
| Ruaj khov | Ruaj khov, tsis sib haum nrog cov neeg sawv cev oxidizing muaj zog. |
Txhais lus hais tias
Bonaprube235; Flexichemb; prodhygine; stearatedoodium; Txoj kev nyuaj, sodiumsalt, sib tov sib xyaw ua ke, sib xyaw sib xyaw ua ke; Natriumchemicalbooksearat; Octadecanoicacidsodiumsalt, stearicacidsodiumsaltalt; Kev nyuaj siab, sodiumsalt, 96%, sib xyaw sib xyaw ua ke
Tshuaj Tshuaj Muaj Zog
Sodium stearate yog cov hmoov dawb, me ntsis soluble hauv dej txias, thiab soluble sai sai tom qab txias heev hauv ib qho kev daws teeb meem kub. Tau zoo emulsifying, mus txog thiab tiv thaiv cov zog, muaj cov roj ntsha xav, thiab muaj cov ntxhiab tsw. Nws yog yooj yim soluble hauv dej kub lossis dej cawv, thiab kev daws teeb meem yog alkaline vim yog hydrolysis.
Daim ntawv thov
Lub ntsiab siv ntawm sodium stearate: thickener; emulsifier; Dispersant; nplaum; Corrosion Inhibitor 1. Tshuaj ntxuav tawm: siv los tswj npuas lub sijhawm muab yaug.
2. Emulsifier lossis dispersant: siv rau polymer emulsification thiab antioxidant.
3. Corrosion Inhibitor: Nws muaj cov khoom tiv thaiv hauv pawg ntim cluster.
4. Cov tshuaj pleev ib ce: shaving gel, pob tshab adhesive, thiab lwm yam.
5. Cov nplaum: siv raws li cov kua nplaum ntuj rau cov ntawv muab tshuaj txhuam.
Kev piav txog
Sodium stearate yog sodium ntsev ntawm stearic acid, tseem hu ua sodium octadecate, uas yog ib qho uas nquag siv anionic surfactant thiab lub ntsiab tivthaiv suraps. Lub hydrocarbyl moiety nyob rau sodium stearate molecule yog pawg hydrophobic, thiab carboxyl moiety yog hydrophilic pab pawg. Hauv cov dej xab npum, sodium stearate muaj nyob rau hauv micelles. Lub Micelles yog spherical kheej thiab muaj ntau cov lwg me me. Cov pab pawg hydrophobic tau sab hauv thiab ua ke nrog txhua lwm yam los ntawm van der wa der pab tau sab nraud thiab faib rau saum npoo ntawm mikelles. Lub micelles tau tawg nyob rau hauv dej, thiab thaum ntsib cov roj-insoluble roj stains, cov roj tuaj yeem cuam tshuam rau hauv cov roj roj zoo. Lub Hydrophobic pawg ntawm sodium stearate rau hauv cov roj, thaum pawg hydrophilic tshem tawm hauv dej rau kev txiav tawm. Hauv dej nyuaj, stearate ions ua ke nrog calcium thiab magnesium calcium calcium thiab magnesium ntsev, txo cov xab npum. Ntxiv rau sodium stearate, xab npum tseem muaj sodium palritate ch3 (CH2) 14Coona thiab sodium ntsev ntawm lwm cov rog roj (C12-C20).
