H-Glu(OEt)-OEt·HCl CAS 1118-89-4 L-Glutamic Acid Diethyl Ester Hydrochloride Purity>99.0% (HPLC) Warshada

I. Hababka kormeerka
1. dhibic dhalaalaysa
Qalabka dhibicda dhalaalka dhijitaalka ah ayaa la isticmaalaa
Talaabada 2: Content
2.1 Reagent
Tallaabada 1: Formic acid
2. Glacial acetic acid
3. Perchloric acid xal titration caadiga ah (C=0.1000mol/l)
4. Crystal Violet tilmaame dareere: 5g/l.
2.2 Qalabka iyo qalabka
1. Beaker 150ml
2. Microburet: 10ml
2. 3 Tallaabooyinka falanqaynta
2. 3. Waxaan si sax ah u miisaamaa qiyaastii 300mg oo muunad ah oo horay loo qalajiyey 105℃ 3h, ku rid 150ml bethel, ku dar 3ml of formic acid, ku dar 50ml of ice acetic acid, ku dar 2 dhibcood oo ah xal tijaabada violet crystal ( TS-74), iyo titrate leh 0.1mol/L perchloric acid ilaa barta dhamaadka cagaaran ama ilaa buluuggu si buuxda u baaba'o.
2. 3. 2 Habka xisaabinta
X waxay la mid tahay waqtiyada C (V1-V2) 0.2042/M jeer 100
C waa fiirsashada xalka titration caadiga ah ee aashitada perchloric, oo lagu muujiyay moles halkii litir (mol/l).
V1 waa mugga la isticmaalo ee titration-ka caadiga ah ee perchloric acid titration-ka uruursan ee muunad titration, lagu muujiyey ml (ml).
Mugga la cunay ee daawada perchloric acid ee titration-ka caadiga ah ee ku jirta baaritaanka V2 maran, oo lagu muujiyey ml (ml)
0.2042 iyo 1.00ml perchloric acid heerka heerka dareeraha titrated marka tayada alaabtan lagu muujiyay G
M Tayada muunada, ee lagu muujiyay garaam (g).
2. 4 Sixitaan
Haddii kala duwanaanshaha heerkulka qolka ee u dhexeeya xalka tijaabada titration iyo cabbirida perchloric acid xalka heerka uu ka sarreeyo 10 ℃, waa in dib loo cabbiraa;Haddii kale, fiirsashada C1 ee xalka caadiga ah ee aashitada perchloric waa in lagu saxo si waafaqsan tijaabada (2).
C2= C1/1+0.0011 (t1-t2)
1+0.0011 waa isku xidhka balaarinta ee glacial acetic acid
Unugga heerkulka qolka ee cabbirka T2 ee perchloric acid waa Celsius (° C).
Cutubka heerkulka qolka ee muunad lagu titrated waa Celsius (° C).
C1 t2℃ perchloric acid diirad saarista xalalka caadiga ah, ee moles halkii litir (MOL/L)
3. Qalalan oo aan miisaan lahayn
3.1 Qalabka:
Foornada kuleylka kuleylka, 1/10,000 dheelitirnaan.
3.2 Habka:
Qaado 1-2 garaam oo muunado ah (sax ah ilaa 0.5mg) oo ku rid dhalo miisaan joogto ah oo hore loo qallajiyey.Tijaabooyinku waxay yeelan doonaan dhumuc isku mid ah xagga hoose ee dhalada miisaanka.Sida shaybaarada, waxaa lagu qallajin doonaa foorno heerkulbeeg ah (105 ± 5 ℃) ilaa miisaanka joogtada ah.
3.3 Xisaabinta
X waa m laga jaray m1 waxaa loo qaybiyaa m laga jaray m2 jeer 100
Halkee: X- qoyaanka %
m1 -- Miisaanka muunada qalalan iyo dhalada cabbiraadda g
m2 - Cabbir cufka dhalada g
m- Miisaanka muunada g
3.4 Qodobbada Feejignaanta
1. Qodobbada fiiro gaar ah: 1. Sambalyo barbar socda waa in la sameeyaa qalajinta iyo miisaan la'aanta.Hal muunad ayaa leh laba natiijadood, khaladka labada natiijaduna kama badna 0.5%.
2. Miisaanka waa inuu ahaado mid taxaddar leh, oo sax ah ilaa 0.0001.
4 si wareeg ah
4.1 Mabaadi'da
Iftiinka dayuurada-polarized ee mara dareeraha ama xalalka iskudhis ka kooban hawlo indho-indhayn ah (taas oo ah, walax indho-shareer ah) waxay sababi kartaa wareeg indho-indheyn ah, taasoo keenaysa in diyaaradda iftiinka dabaylaha ay u wareegto bidix ama midig.Tirada darajooyinka wareegtada waxaa loo yaqaan wareegga indhaha.Heerkul gaar ah (sida caadiga ah waxaa lagu muujiyaa t, waxay noqon kartaa 20 ℃ ama 25 ℃) mawjadaha iftiinka qaarkood (iftiin sodium jaale ah oo leh D, wavelength λ 589.3nm) iftiinka dabaysha iyada oo millilitir kasta oo ka kooban 1g dhaqdhaqaaqa indhaha, dhumucda 1dm (taas oo ah, 10cm) xal marka wareegga loo yaqaanno rotation muuqaal gaar ah.
4.2 Shuruudaha
Khadka D ee spectrum sodium (589. 3 nm) ayaa loo isticmaalay in lagu cabbiro dhererka tuubada 1dm heerkulkuna wuxuu ahaa 20℃.
4.3 Qalabka
4.3.1 Autotropy dhijitaalka ah (sax ± 0.001°)
4.3.2 dheelitirka elektarooniga ah (sax ahaan 0.0001g).
4.4 Habka hawlgalka
Qaado 3g oo badeecadan ah, oo sax ah 0.0001g, ku rid dhalada mugga 100ml, ku dar ethanol si aad u milmaan oo u milo miisaanka, si fiican u rux.Ku raaci tuubada cabbirada qadar yar oo dareere ah dhowr jeer, ka dibna si tartiib ah ugu dur dareeraha tuubada cabbiraadda (ha samaynin xumbo), dhig tuubada cabbirada gyroscope si loo ogaado, oo akhri akhrinta wareegga indhaha 3 jeer oo barbar socda.
4.5 Xisaabinta
Wareegga gaarka ah ee L-glutamate Diethyl carbonate ilaa sodium spectrum D-line at 20℃ [Alpha] D20 ayaa loo xisaabiyay sida soo socota:
[ɑ] D20 = alfa/m
Halkee: α -- celceliska tirada wareegyada wareegyada cubic;
m -- tayada muunadda.
4.6 Farqiga la oggol yahay: Farqiga dhammaystiran ee isla muunadda waa in aanu dhaafin 0.02% marka laba jeer la cabbiro.
4.7 taxaddar
4.7.1 Solvent waa in loo istcimaalaa sifo banaan ka hor cabir kasta: Cabirka ka dib, qiyaasid waa in mar kale la sameeyaa si loo go'aamiyo in eber ay isbeddesho inta lagu jiro cabirka.Haddii ay jiraan wax isbeddello ah, wareegga indhaha ee muunadda waa in mar kale la go'aamiyaa.
4.7.2 Muunada waa in la caddeeyaa ka dib kala diri iyo qas;haddii kale, waa in la sifeeyaa.
Tallaabada 5 Muuqashada
Alaabtu waa inay noqotaa budada microcrystalline cad ilaa cad