Stearic acid

Stearic acid yog cov hmoov dawb los yog dawb los yog crystalline nyuaj nrog ib qho zoo acicular siv lead ua nrog microgloss hauv profile; Muaj ib tug me ntsis tsw zoo li cov roj, tasteless. Cov khoom no yooj yim soluble hauv chloroform lossis ether, soluble hauv ethanol, thiab yuav luag insoluble hauv dej.

Xa kev nug

Hauj lwm lawm

Kev piav qhia

Khoom npe: Stearic acid
Qauv TSIS MUAJ: C18H3602
Keeb kwm: Suav teb
CAS Nr.: 57-11-4
EINECS No.: 266-928-5

COA

INSPECTION khoom	STANDARD	TSEEM CEEB
Sab nrauv	Flakes, los yog hlaws dai	Cov hlaws dai
Xim, Hazen	Tsawg dua los yog sib npaug li 60	33
Acid Tus nqi, mgKOH / g	207-211	210.4
Tus nqi Saponification, mgKOH / g	208-212	210.95
Iodine tus nqi, gl2/100g	Tsawg dua lossis sib npaug rau 0.5	0.17
Cov dej noo,%	Tsawg dua lossis sib npaug rau 0.2	0.08
Melting Point, ºC	53-57	56.1
Fatty Acid Composition
C12+C14,% C16,% C18,% Lwm yam.%	Tsawg dua los yog sib npaug li 1.5 52-59 40-44 Tsawg dua los yog sib npaug li 1.5	0.58 55.89 43.14 0.39



TEEB MEEM	PASS

Daim ntawv thov

1, Ib qho tseem ceeb ntawm kev siv stearic acid yog ua tus neeg sawv cev emulsifying. Hauv lub peev xwm no, nws nquag ntxiv rau ntau yam khoom xws li tshuaj pleev ib ce, khoom noj, thiab tshuaj. Thaum sib xyaw nrog dej, nws tuaj yeem pab tsim kom muaj qhov ruaj khov emulsion los ntawm kev ua tus neeg sawv cev saum npoo av. Cov cuab yeej no tso cai rau nws siv rau hauv cov khoom xws li tshuaj pleev ib ce thiab cream rau margarine thiab ice cream.

2, Stearic acid kuj yog cov roj nplua nyeem zoo heev thiab siv rau ntau yam kev lag luam. Piv txwv li, nws yog siv los ua cov roj nplua nyeem hauv kev tsim cov txheej txheem uas muaj kev sib txhuam thiab cua sov, xws li hauv kev tsim cov yas thiab roj hmab. Tsis tas li ntawd, nws yog siv nyob rau hauv kev tsim cov tswm ciab, qhov chaw uas nws yuav pab tsim kom muaj ib tug qeeb-kub, uas yuav siv sij hawm ntev cov nplaim taws.

Ntim