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首页> 外文期刊>Journal of Chemical and Engineering Data: the ACS Journal for Data >Viscosities of Some Saccharides in Aqueous Solutions of Phosphate-Based Inorganic Salts
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Viscosities of Some Saccharides in Aqueous Solutions of Phosphate-Based Inorganic Salts

机译:磷酸盐无机盐水溶液中某些糖的粘度

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摘要

The viscosities eta of some monosaccharides, their methyl- and deoxy- derivatives, disaccharides, and trisaccharides have been measured in (0.25, 0.5, 1.0, and 1.25) mol.kg(-1) aqueous solutions of potassium phosphate (KH2PO4) and (0.5, 1.0, 1.5, and 2.0) mol.kg(-1) aqueous solutions of sodium phosphate (NaH2PO4) and ammonium phosphate (NH4H2PO4) monobasic salts, and potassium phosphate (K3PO4) tribasic salt over the temperature range (288.15 to 318.15) K and at atmospheric pressure, P = 0.1 MPa. The viscosity data have been utilized to calculate the Jones-Dole viscosity B-coefficients and their corresponding coefficients of transfer, Delta B-t. The Delta B-t values were found to be positive and their magnitudes vary depending on the nature of solutes and cosolutes. The dB/dT coefficients and pair eta(AB) and triplet eta(ABB) interaction coefficients have also been calculated and discussed in terms of solute-solvent/cosolute interactions. The results have been compared in phosphate-based salts on the basis of the nature of the cation and anion.
机译:在(0.25、0.5、1.0和1.25)mol.kg(-1)mol磷酸钾(KH2PO4)和(25)mol.kg(-1)水溶液中测量了一些单糖,其甲基和脱氧衍生物,二糖和三糖的粘度eta。在温度范围(288.15至318.15)范围内的0.5、1.0、1.5和2.0)mol.kg(-1)磷酸钠(NaH2PO4)和磷酸铵(NH4H2PO4)一元盐以及磷酸钾(K3PO4)三碱盐的水溶液K,在大气压下,P = 0.1 MPa。粘度数据已用于计算琼斯-多尔粘度B系数及其相应的传递系数Delta B-t。发现Delta B-t值为正,其大小取决于溶质和共溶质的性质。 dB / dT系数以及eta(AB)和三重eta(ABB)对相互作用系数也已经根据溶质-溶剂/固溶体相互作用进行了计算和讨论。根据阳离子和阴离子的性质,对磷酸盐基盐进行了比较。

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