H-Gly-OMe · HCl CAS 5680-79-5 Glycine Methyl Ester Hydrochloride Assay>99.0%

1. Properties: Wannan samfurin ya zama fari crystalline foda.
2. Tambayoyi:
1) Ƙaddamar da Glycine Methyl Ester Hydrochloride assay
1.1 Hanya
A ƙarƙashin yanayin acidic, samfurin yana amsawa tare da wani adadin nitrate na azurfa, kuma yawan nitrate na azurfa ya koma baya tare da ammonium thiocyanate, yana nufin ammonium ferric sulfate.
A matsayin mai nuna alama, an ƙayyade jimlar chlorine bisa ga girman daidaitaccen maganin da aka cinye, kuma an cire jimlar abun ciki na chlorine daga abun ciki na glycine hydrochloride don samun abun ciki na Glycine Methyl Ester Hydrochloride.
1.2 Reagents
Dibutyl phthalate;
Maganin Nitric acid: 2+3;
Azurfa nitrate daidaitaccen titration bayani: c(AgNO3) = 0.1 mol/L
Ammonium thiocyanate daidaitaccen titration bayani: c(NH4SCN) = 0.1 mol/L
Ammonium ferric sulfate (III) ruwa mai nuna alama: 80 g/L
1.3 Tsarin Nazari
Yi nauyi game da samfurin 0.5g, daidai zuwa 0.0001g.Sanya a cikin kwalban conical 250ml, narke a cikin ruwa 40ml, ƙara 10 ml nitric acid bayani, Ƙara (50 ± 0.02) mL azurfa nitrate daidaitaccen bayani, 3mL ammonium ferric sulfate bayani, 4mL dibutyl phthalate, da thiocyanate Ammonium shine daidaitaccen maganin titration. titrated har sai da bayani ya kasance haske launin ruwan kasa kuma ya kasance mara launi ga 30 s.
1.4 Sakamakon sakamako
Yawan juzu'in abun ciki na glycine methyl ester hydrochloric acid w1, wanda aka bayyana a matsayin%, ana ƙididdige shi bisa ga Equation (1):
w1= (c1V1-c2V2)*M/1000/m * 100-w2 * 1.126 dabara (1)
Inda:
V1: Girman nitrate daidaitaccen titration bayani (ml)
V2: Girman ammonium thiocyanate daidaitaccen maganin titration wanda aka cinye ta titration (ml)
c1: Madaidaicin ƙimar nitrate daidaitaccen bayani na titration na azurfa (mol/L)
c2: Madaidaicin ƙimar ammonium thiocyanate daidaitaccen titration bayani (mol/L)
w2: Yawan juzu'i (%) na abun ciki na glycine hydrochloride kamar yadda aka ƙaddara a Sashe na 4.2
M: Molar taro na glycine methyl ester hydrochloride (g/mol)
1.126: Juyin juzu'i na glycine hydrochloride zuwa Glycine methyl ester hydrochloride.
Ma'anar lissafin ma'anar ma'auni guda biyu an ɗauke shi azaman sakamakon auna, kuma cikakken bambanci tsakanin sakamakon ma'aunin guda biyu bai wuce 0.05% ba.
2) Tabbatar da abun ciki na glycine hydrochloride
2.1 Hanya
Yin amfani da dimethyl yellow a matsayin mai nuna alama, samfurin ya kasance titrated da sodium hydroxide misali titrating bayani, da kuma ƙarar da bayani da aka titrated bisa ga amfani da sodium hydroxide misali.
Yi lissafin abun ciki na glycine hydrochloride.
2.2 Reagent
Madaidaicin titration na sodium hydroxide: c (NaOH) = 0.1mol/L
Dimethyl yellow nuni ruwa: 10 g/L
2.3 Tsarin Nazari
Auna kimanin 5.0 g samfurin dakin gwaje-gwaje, daidai zuwa 0.0001g, a cikin buroshi 200 ml, narke da ruwa 50ml, kuma ƙara dimethyl dimethyl 5.
Ruwan nuni na rawaya, tare da daidaitaccen titration bayani titration na sodium hydroxide har sai maganin daga ja zuwa rawaya orange shine ƙarshen ƙarshen.
2.4 Kididdigar sakamako
Babban juzu'in w2 na abun ciki na glycine hydrochloride an bayyana shi azaman % kuma an ƙididdige shi bisa ga Equation (2):
w2 = (V/1000) cM/m * 100 dabara (2)
Inda:
V: Ƙarar sodium hydroxide daidaitaccen titration bayani (mL)
c: Madaidaicin ƙimar sodium hydroxide daidaitaccen ƙaddamarwar maganin titration (mol/L)
M: Molar taro na glycine hydrochloride (g/mol)
m: Yawan adadin samfurin (g)
Ma'anar ma'anar lissafi na sakamakon ma'auni guda biyu an ɗauki matsayin sakamakon auna, kuma cikakken bambanci tsakanin sakamakon ma'aunin guda biyu bai wuce 0.05% ba.
3. Matsayin narkewa: Dangane da hanyar tantance ma'aunin narkewa (Pharmacopoeia 2010 na Sinanci 2010 Shafi VIC), kewayon narkewar shine 172-178 ºC.
4. Drying nauyi asara: dauki wannan samfurin a 105.0 ℃ da kuma bushe shi zuwa m nauyi.Rashin nauyi bazai wuce 0.5% ba.
5. Ajiye: Wannan samfurin ya kamata a sanyaya shi daga haske.