Abstract
The dual circuits laser detector was used to measure the solubility and super-solubility of uridine-5′-monophosphate disodium salt in the ethanol-aqueous mixture of different ethanol mass fractions at 293.2-318.2 K. In addition, the effects of agitation rate, pH value and Na+ concentration on the width of metastable zone were explored respectively. It was found that the solubility data might be described well by the model of λh equation; furthermore the mixing enthalpy and the crystallization enthalpy of uridine-5′-monophosphate disodium salt in mixture were determined. Similar to the solubility, the super-solubility increased with the increase of temperature and decreased with the increase of ethanol mass fraction. Under the same experimental conditions, increase of pH value, Na+ concentration or decrease of agitation rate might broaden the width of metastable zone.
| Original language | English |
|---|---|
| Pages (from-to) | 1348-1353 |
| Number of pages | 6 |
| Journal | Huagong Xuebao/CIESC Journal |
| Volume | 59 |
| Issue number | 6 |
| State | Published - 2008 |
Keywords
- Metastable zone
- Solubility
- Uridine-5′-monophosphate disodium salt
- λh equation