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khoom

Ethyl Maltol (CAS # 4940-11-8)

Chemical Property:

Molecular Formula c7h8o 3
Molar Mass 140.14 Nws
Qhov ntom 1.1624 (kev kwv yees kwv yees)
Melting Point 85-95 ° C (lit.)
Boling Point 196.62 ° C (kwv yees kwv yees)
JECFA Number 1481 ib
Dej Solubility 9.345g / L ntawm 24 ℃
Solubility Soluble nyob rau hauv dej kub, ethanol thiab lwm yam organic solvents, me ntsis soluble nyob rau hauv dej.
Vapor Siab 0.2Pa ntawm 24 ℃
Qhov tshwm sim Dawb los yog yellowish koob siv lead ua los yog crystalline hmoov
Xim Dawb rau daj daj
Merck 14, 3824 ib
pKa 8.38 ± 0.10 (Kev kwv yees)
Kev cia khoom 2-8 ° C
Refractive Index 1.4850 (kwv yees)
MDL PAB 00059795
Physical thiab Chemical Properties Melting point 85-95 ° C
Siv Nws yog siv rau hauv cov khoom noj, haus luam yeeb, tshuaj pleev ib ce thiab lwm yam lag luam, thiab muaj cov nyhuv ntawm flavoring, kho thiab sweetening.

Product Detail

Khoom cim npe

Hazard Cov Cim Xn – Ua phem
Risk Codes 22 – Ua phem yog nqos
Kev nyab xeeb piav qhia 36 – Hnav khaub ncaws tiv thaiv kom haum.
WGK Germany 3
RTECS 0840000 QHIA
HS Code 293299 0
Toxicity LD50 hais lus ntawm txiv neej nas, txiv neej nas, poj niam nas, qaib (mg / kg): 780, 1150, 1200, 1270 (Gralla)

 

Taw qhia

Ethyl maltol yog ib qho organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm ethyl maltol:

 

Zoo:

Ethyl maltol yog cov xim tsis muaj xim rau daj ntseg daj nrog ib qho tshwj xeeb aroma. Nws yog volatile nyob rau hauv chav tsev kub, soluble nyob rau hauv alcohols thiab fatty solvents, thiab insoluble nyob rau hauv dej. Ethyl maltol muaj kev ruaj ntseg zoo heev thiab tuaj yeem nyob ruaj khov rau lub sijhawm ntev nyob rau hauv lub zog ntawm oxygen thiab hnub ci.

 

Siv:

 

Txoj kev:

Muaj ntau txoj hauv kev los npaj ethyl maltol, thiab txoj kev siv feem ntau yog esterify maltol nrog ethanol nyob rau hauv muaj cov catalyst kom tau ethyl maltol. Kev saib xyuas yuav tsum tau them rau kev tswj cov tshuaj tiv thaiv kab mob thiab kev xaiv cov catalyst thaum lub sij hawm npaj cov txheej txheem los xyuas kom meej lub purity ntawm cov khoom thiab cov tshuaj tiv thaiv nyhuv.

 

Cov ntaub ntawv kev nyab xeeb:

Tsis txhob sib cuag nrog lub qhov muag thiab tawv nqaij thaum siv, thiab yaug tam sim nrog dej ntau yog tias tiv tauj.

Tsis txhob ua pa ntev ntev thiab noj tshuaj kom tsis txhob ua xua rau lub ntsws thiab digestive system.

Thaum khaws cia, tsis txhob sib cuag nrog cov oxidants muaj zog thiab khaws cia rau hauv qhov chaw txias, qhuav, zoo-ventilated.

Nyob rau hauv cov ntaub ntawv ntawm kev huam yuaj los yog tsis xis nyob, nrhiav kev kho mob thiab qhia rau koj tus kws kho mob txog cov tshuaj siv.


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb