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Ethyl (R) -3-hydroxybutyrate (CAS# 24915-95-5) Aworan Afihan
  • Ethyl (R) -3-hydroxybutyrate (CAS# 24915-95-5) 1

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

Ohun-ini Kemikali:

Fọọmu Molecular C6H12O3
Molar Mass 132.16
iwuwo 1.017 g/mL ni 25 °C (tan.)
Ojuami Boling 75-76°C/12 mmHg (tan.)
Yiyi pato (α) -45.5º (589nm, c=1, CHCl3)
Oju filaṣi 148°F
Omi Solubility tiotuka
Vapor Presure 17.2Pa ni 20 ℃
Ifarahan Omi
Specific Walẹ 1.017
Àwọ̀ Ko o, Alailowaya
pKa 14.45± 0.20 (Asọtẹlẹ)
Ibi ipamọ Ipo 2-8°C
Atọka Refractive n20/D 1.42(tan.)
Ti ara ati Kemikali Properties alfa:-45.5 o (589nm, c=1, CHCl3)

Alaye ọja

ọja Tags

Awọn koodu ewu R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara.
R52 - Ipalara si awọn oganisimu omi
Apejuwe Abo 24/25 - Yago fun olubasọrọ pẹlu awọ ara ati oju.
UN ID Ọdun 1993
WGK Germany 3
HS koodu 29181990

 

Ọrọ Iṣaaju

Ethyl (R)-(-) 3-hydroxybutyrate, ti a tun mọ ni (R) - (-) 3-hydroxybutyric acid ethyl ester, jẹ agbo-ara Organic. Awọn ohun-ini rẹ jẹ bi atẹle:

 

Didara:

- Irisi: Omi ti ko ni awọ

 

Lo:

Ethyl (R)-(-) 3-hydroxybutyrate ni ọpọlọpọ awọn ohun elo ni aaye kemistri:

- O le ṣe ipa pataki bi ayase ninu awọn aati iṣelọpọ Organic.

 

Ọna:

Awọn ọna pupọ lo wa lati ṣeto ethyl (R)-(-) 3-hydroxybutyrate:

- Ọna ti o wọpọ ni lati mura silẹ nipasẹ esterification ti hydroxybutyric acid, eyiti o ṣe atunṣe hydroxybutyric acid pẹlu ethanol, ṣafikun ayase acid gẹgẹbi sulfuric acid tabi formic acid, ati distills ọja mimọ lẹhin iṣesi naa.

- O tun le pese sile nipa sisọ succinic acid pẹlu ethanol, fifi awọn ayase acid kun, ati lẹhinna hydrolysis.

 

Alaye Abo:

Ethyl (R)-(-) 3-hydroxybutyrate jẹ ailewu diẹ fun lilo gbogbogbo, ṣugbọn atẹle yẹ ki o tun ṣe akiyesi:

- O jẹ olomi flammable ati pe o yẹ ki o yago fun olubasọrọ pẹlu awọn ina ṣiṣi ati awọn iwọn otutu giga.

- Awọn iṣọra ailewu pataki, gẹgẹbi wọ awọn gilaasi aabo ati awọn ibọwọ, yẹ ki o mu lakoko iṣẹ.

- Yago fun ifasimu, ingestion, ati awọ ara-si-ara lati yago fun idamu ati ipalara.

- Ni ọran ti olubasọrọ, fi omi ṣan agbegbe ti o kan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa itọju ilera.

 

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