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Způsob selektivní izolace chloramfenikolu
CS247553B1
Czechoslovakia
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English - Inventor
Jan Kostkan Eva Seidlova Jiri Jary Miloslava Potacova Jan Simon Miluse Maternova
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Description
translated from
Navážka NaCl 9 | produkt g |
120 | 0 |
140 | 1,2 |
160 | 1,5 |
180 | 1,6 |
200 | 1,6 |
220 Teplota 28 °C | 1,6 |
Navážka NaCl | produkt |
g | g |
140 | 1,2 |
160 | 1,6 |
180 | 1,8 |
Teplota 10 °C |
Destilát ml | teplota par °c | navážka NaCl 9 | výtěžek 9 | ||
200 | 80 až | 85 | 149 | 0 | |
300 | 80 až | 90 | 131 | 1,9 | |
410 | 80 až | 94 | 110 | 2,6 | |
460 | 80 až | 100 | 101 | 2,6 |
Claims (1)
Hide Dependent
translated from
- Způsob selektivní izolace chloramfenikolu, vyznačený tím, že se ve vodném roztoku chloramfenikolu a D-threo-2-amino-l-(4-nitrofenyl)-1,3-propandiolu rozpustí chlorid sodný v takovém molárním množství, které je 100 až 300 násobkem molárního množství rozpuštěného chloramfenikolu, načež se selektivně vyloučí chloramfenikol, který se izoluje, přičemž se izolace provádí při teplotě 35 až 0 °C.