Acoustic and spectroscopic characterization of glycol ethers in vitamin B7 over the range of temperatures (288.15, 293.15, 298.15, 303.15) K

Swati Bhathley , Nabaparna Chakraborty , Kailash Chandra Juglan
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Abstract

Density (ρ) and ultrasonic speed (u) of butoxyethanol and phenoxyethanol in aqueous solution of biotin concentrations (0.0012, 0.0017, 0.0022) mol·kg1 at varying temperature range (288.15, 293.15, 298.15 and 303.15) K at 0.1 MPa were measured using Anton Paar DSA 5000 M. The volumetric and acoustical properties such as apparent molar properties (V), partial molar volume (V0),partial molar volume of transfer (ΔV0),apparent molar isentropic compression (K),partial molar isentropic compression (K0),partial molar isentropic compression of transfer are computed using the experimental data of density (ρ) and ultrasonic speed (u). This investigation is useful to understand the solvation behavior of biotin. Additionally, partial molar expansibilities (E0) along with their first order derivatives (E0/T)pare determined using the obtained experimental data. These results are effective in understanding the nature of interaction occurring inside the solution. Further, pair and triplet coefficients are evaluated which determines the structure making and breaking ability of glycol ethers in aqueous solution of biotin. Also, spectroscopic study of solutions is mentioned in current research which reveals the nature and strength of bond formation and various interactions in the mixture. The present study suggests the molecular interaction between the solute and solvent present in aqueous solution of Biotin (Vitamin B7) as solvent, butoxyethanol (BE) and phenoxyethanol (PE) as solute.
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在温度(288.15、293.15、298.15、303.15)K 范围内对维生素 B7 中的乙二醇醚进行声学和光谱学表征
使用安东帕 DSA 5000 M 在 0.1 兆帕的条件下,在不同的温度范围(288.15、293.15、298.15 和 303.15)K 下测量了丁氧基乙醇和苯氧基乙醇在生物素浓度(0.0012、0.0017、0.0022)mol-kg-1 的水溶液中的密度(ρ)和超声波速度(u)。利用密度 (ρ) 和超声波速度 (u) 的实验数据,计算了表观摩尔特性 (V∅)、部分摩尔体积 (V∅0)、部分摩尔转移体积 (ΔV∅0)、表观摩尔等熵压缩 (K∅)、部分摩尔等熵压缩 (K∅0)、部分摩尔转移等熵压缩等体积和声学特性。这项研究有助于了解生物素的溶解行为。此外,还利用获得的实验数据确定了部分摩尔膨胀率(E∅0)及其一阶导数(∂E∅0/∂T)。这些结果有助于理解溶液内部发生的相互作用的性质。此外,还评估了成对系数和三重系数,这些系数决定了生物素水溶液中乙二醇醚的结构形成和破坏能力。此外,目前的研究还提到了溶液的光谱研究,它揭示了混合物中键形成和各种相互作用的性质和强度。本研究表明,以生物素(维生素 B7)为溶剂、丁氧基乙醇(BE)和苯氧基乙醇(PE)为溶质的水溶液中存在溶质和溶剂之间的分子相互作用。
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