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论文类型：期刊论文

发表时间：2011-01-10

发表刊物：THERMOCHIMICA ACTA

收录刊物：SCIE、EI

卷号：512

期号：1-2

页面范围：225-232

ISSN号：0040-6031

关键字：Differential scanning calorimeter; Phase diagram; Synthesized ternary phase diagram; Methanol; Propylene glycol; Cryoprotectant

摘要：The present study presents partial ternary phase diagrams of methanol/sodium chloride/water and propylene glycol/sodium chloride/water systems with compositions of cryobiological interests (R < 20 and x < 30) by means of differential scanning calorimeter. To synthesize the ternary phase diagram through its relevant binary ones, the partial binary phase diagrams of methanol and propylene glycol aqueous solutions are experimentally determined as well. Ultimately, the equations characterizing the liquid surface of these two kinds of alcohol ternary systems are obtained and the polynomial representations for binary phase diagrams of methanol and propylene glycol aqueous solutions are also published in this study. The results show an excellent agreement between the experimental and synthesized data (less than +/- 2.5 degrees C) of these ternary systems. These results will enrich our understanding on the protection mechanism of these two cryoprotectants, as well as providing new evidences of the feasibility of synthesizing ternary phase diagrams of cryobiological interests. (C) 2010 Elsevier B.V. All rights reserved.