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Palmitic acid (CAS#57-10-3)

Ngwongwo kemịkalụ:

Usoro ihe omimi C16H32O2
Molar Mass 256.42
Njupụta 0.852g/mLat 25°C(ọkụ)
Ebe Na-agbaze 61-62.5C (ọkụ)
Ebe Boling 351.5 Celsius C
Ebe mgbari >230°F
Nọmba JECFA 115
Mmiri Solubility apụghị sosolument
Solubility Na-adịghị ike n'ime mmiri, nke na-adịghị edozi na ethanol oyi, na-agbaze na ethanol na-ekpo ọkụ, ether, acetone, chloroform, petroleum ether.
Uzuoku nrịbama 10 mm Hg (210 Celsius C)
Ọdịdị Kristalizer dị na ethanol bụ kristal na-acha ọcha waxy siri ike ( mpempe akwụkwọ phosphorus na-acha ọcha)
Agba Na-acha ọcha ma ọ bụ ọ fọrọ nke nta ka ọ bụrụ ọcha
Merck 14,6996
BRN 607489
pKa 4.78± 0.10 (buru amụma)
Ọnọdụ Nchekwa okpomọkụ ụlọ
Nkwụsi ike Kwụsie ike. Na-agbanyụ ọkụ. Na-ekwekọghị na ntọala, ihe ndị na-emepụta oxidizing, ndị na-ebelata ihe.
Mmetụta Na-amịkọrọ mmiri ngwa ngwa
Ntụgharị uche 1.4273
MDL MFCD00002747
Njirimara anụ ahụ na kemịkalụ Njirimara nke ọcha na pearlescent phosphorus. ebe mgbaze 63.1 ℃

esi esi 351,5 ℃

njupụta ikwu 0.8388

solubility insoluble na mmiri, ntakịrị soluble na petroleum ether, soluble na ethanol. Soluble na ether, chloroform na acetic acid.

Jiri A na-eji ya dị ka mmiri, reagent kemịkalụ na ihe na-egbochi mmiri

Nkọwa ngwaahịa

Mkpado ngwaahịa

Akara egwu Xi - mgbakasị ahụ
Koodu ihe egwu R36 - na-ewe iwe na anya
R36 / 38 - na-akpasu anya na akpụkpọ ahụ.
R36 / 37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ.
Nkọwapụta nchekwa S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S37/39 - Yiri uwe aka kwesịrị ekwesị na nchebe anya / ihu
S36 - Yiri uwe nchebe kwesịrị ekwesị.
WGK Germany -
RTECS RT455000
TSCA Ee
Koodu HS 29157015
Nsi LD50 iv n'ime ụmụ oke: 57± 3.4 mg / kg (ma ọ bụ, Wretlind)

 

Okwu mmalite

Mmetụta ọgwụ: A na-ejikarị eme ihe dị ka surfactant. Mgbe ejiri ya dị ka ụdị na-abụghị ionic, enwere ike iji ya maka polyoxyethylene sorbitan monopalmitate na sorbitan monopalmitate. A na-eme nke mbụ ka ọ bụrụ emulsifier lipophilic A na-ejikwa ya na ihe ịchọ mma na ọgwụ niile, nke ikpeazụ nwere ike iji mee ihe dị ka emulsifier maka ihe ịchọ mma, ọgwụ na nri, onye na-ekesa maka inks pigmenti, nakwa dị ka ihe nkwụsịtụ; mgbe a na-eji ya dị ka ụdị anion, a na-eme ya ka ọ bụrụ sodium palmitate ma jiri ya mee ihe maka ncha acid fatty acid, emulsifier plastic, wdg; A na-eji zinc palmitate mee ihe dị ka ihe nkwụsi ike maka ịchọ mma na plastik; na mgbakwunye na iji ya dị ka surfactant, a na-ejikwa ya dị ka akụrụngwa maka isopropyl palmitate, methyl ester, butyl ester, amine compound, chloride, wdg; n'etiti ha, isopropyl palmitate bụ ihe ịchọ mma mmanụ na-emepụta ihe, nke a pụrụ iji mee lipstick, ude dị iche iche, mmanụ ntutu isi, ntutu isi, wdg; Enwere ike iji ndị ọzọ dị ka methyl palmitate mee ihe dị ka ihe mgbakwunye mmanụ na-ete mmanụ, ihe ndị na-emepụta ihe; Ihe mkpuchi PVC, wdg; ihe eji eme ihe maka kandụl, ncha, griiz, ihe eji eme ihe, ihe nro, wdg; eji dị ka ngwa nri, bụ nri ngwa nri kwere GB2760-1996 iwu na obodo m; a na-ejikwa ya eme ihe dị ka ndị defoamers nri.


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