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I-Ethyl (R)-3-hydroxybutyrate (CAS# 24915-95-5) Isithombe Esifakiwe
  • I-Ethyl (R)-3-hydroxybutyrate (CAS# 24915-95-5) 1

I-Ethyl (R) -3-hydroxybutyrate (CAS# 24915-95-5)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C6H12O3
I-Molar Mass 132.16
Ukuminyana 1.017 g/mL ku-25 °C (okhanyisiwe)
I-Boling Point 75-76 °C/12 mmHg (okhanyisiwe)
Ukuzungezisa Okuthile(α) -45.5 º (589nm, c=1, CHCl3)
I-Flash Point 148°F
Ukuncibilika kwamanzi encibilikayo
I-Vapor Presure 17.2Pa ku-20℃
Ukubukeka Uketshezi
I-Gravity ethize 1.017
Umbala Icacile, Ayinambala
pKa 14.45±0.20(Okubikezelwe)
Isimo Sesitoreji 2-8°C
I-Refractive Index n20/D 1.42(lit.)
Izakhiwo Zomzimba Nezamakhemikhali i-alpha:-45.5 o (589nm, c=1, CHCl3)

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
R52 – Iyingozi ezintweni eziphila emanzini
Incazelo Yokuphepha 24/25 - Gwema ukuthintana nesikhumba namehlo.
Ama-ID e-UN 1993
I-WGK Germany 3
Ikhodi ye-HS 29181990

 

Isingeniso

I-Ethyl (R)-(-)-3-hydroxybutyrate, eyaziwa nangokuthi (R)-(-)-3-hydroxybutyric acid ethyl ester, iyinhlanganisela yezinto eziphilayo. Izici zayo zimi kanje:

 

Ikhwalithi:

- Ukubukeka: Uketshezi olungenambala

 

Sebenzisa:

I-Ethyl (R)-(-)-3-hydroxybutyrate inohlu olubanzi lwezinhlelo zokusebenza emkhakheni wamakhemikhali:

- Kungadlala indima ebalulekile njenge-catalyst ku-organic synthesis reactions.

 

Indlela:

Kunezindlela ezimbalwa zokulungisa i-ethyl (R)-(-)-3-hydroxybutyrate:

- Indlela evamile ukulungiselela nge-esterification ye-hydroxybutyric acid, ephendula i-hydroxybutyric acid ne-ethanol, yengeza i-acid catalyst efana ne-sulfuric acid noma i-formic acid, futhi idilize umkhiqizo ohlanzekile ngemva kokusabela.

- Ingabuye ilungiswe ngokujiya i-succinic acid nge-ethanol, yengeze ama-acid catalysts, bese kuba yi-hydrolysis.

 

Ulwazi Lokuphepha:

I-Ethyl (R)-(-)-3-hydroxybutyrate iphephile uma kuqhathaniswa ukuze isetshenziswe okuvamile, kodwa okulandelayo kusafanele kuqashelwe:

- Kuwuketshezi oluvuthayo futhi kufanele kugwenywe ukuthintana namalangabi avulekile kanye namazinga okushisa aphezulu.

- Izinyathelo zokuphepha ezidingekayo, njengokugqoka izibuko zokuzivikela namagilavu, kufanele zithathwe ngesikhathi sokusebenza.

- Gwema ukuhogela, ukumunca, kanye nokuthintana nesikhumba ukuze ugweme ukungaphatheki kahle nokulimala.

- Uma uthinta, hlambulula indawo ethintekile ngokushesha ngamanzi amaningi futhi ufune usizo lwezokwelapha.

 

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