Stearic acid yog qib siab-fatty acid. Cov khoom ntshiab yog qhov ci iab dawb ntawm cov nplaim hluav taws. Tus txheeb ze ntom 0. 9408 (20 degree), latege {}}}} Cov lej boiling) 1.4299 (80 degree).
Cov khoom lag luam yog dawb lossis me ntsis cov granules, sib tov ntawm stearic acid thiab palmites acid, thiab muaj ib qho me me ntawm oleic acid, nrog ib tug me ntsis butter-zoo li tsw. Nws yog me ntsis soluble hauv dej txias, yooj yim soluble hauv benzene, Toluene, carbon tetrachloride, carbon atetate, thiab lwm yam, thiab kuj solub hauv ethanol thiab acetone. Cov khoom lag luam tau muab faib ua cov khoom lag luam ua ntej (lossis 200 cov khoom lag luam qub) Thawj-qib thiab cov khoom-kawm qib ob yog cov khoom dawb waxy, thiab cov khoom lag luam thib peb yog lub teeb daj waxy cov khib nyiab. Stearic acid tsis tshua muaj nyob ib leeg hauv xwm. Nws feem ntau muaj nyob rau hauv daim ntawv ntawm glycerol esters, xws li tristearate. Nws tshwm sim nyob rau hauv cov roj ntawm cov tsiaj feem ntau thiab cov nroj tsuag, tshwj xeeb tshaj yog nyob rau hauv butter, qhov twg nws yog ntau tshaj. Stearic acid yog ib organic acid uas tuaj yeem hnov mob nrog alkali los tsim sodium stearate, xab npum.
Stearic acid muaj ntau yam ntawm kev siv. Hauv kev lag luam tshuaj pleev ib ce, nws yog ib qho tsis tseem ceeb ntawm cov khoom siv raw rau kev tsim cov khoom lag luam emulsified. Nws yog siv los npaj cream, txias cream, txias cream, cream, lub hauv paus cream, shating cream, cov plaub hau cream thiab kev saib xyuas tawv nqaij. Hauv cov roj hmab kev lag luam, nws yog vulcanization activator rau ntuj roj hmab, hluavtaws roj hmab thiab kua yas, thiab tseem siv los ua tus mos muag. Hauv kev lag luam plastics, nws yog siv los ua cov yas yas, cov khib nyiab thiab roj nplua nyeem. Hauv kev lag luam textile, nws yog siv los ua cov xov paj roj thiab ib qho muag muag rau kev ua rau cov txiv ntoo ua ke. Nws kuj tseem siv los ua cov neeg sawv cev, polishing pastes, cov tshuaj txhuam hlau, cov ntawv sau ua kua roj av polishing, textile waterproof med thiab lwm yam khoom. Nws yog qhov hnyav rau cov roj-soluble pigments. Nws tseem yog cov khoom siv raw rau kev tsim cov stearic acid mthyl esyr, potassium stearate, txhuas cov kua qaub thiab lwm yam kev xav ua kom nruj thiab ua rau sab nraud.