Dissolution of Ca3(AsO4)2 · 2H2O in the system CaOAs2O5H2O at 35, 40, 45 and 50°C and the related thermodynamic data期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Dissolution of Ca₃(AsO₄)₂ · 2H₂O in the system CaOAs₂O₅H₂O at 35, 40, 45 and 50°C and the related thermodynamic data

Authors:	PP Mahapatra LM Mahapatra CN Nanda

Institution:	Post-Graduate Department of Chemistry, Khallikote College, Berhampur, GM 760 001 India

Abstract:	Calcium arsenate dihydrate is precipitated at pH 7.0 and its dissolution in aqueous solutions at temperatures of 35, 40, 45 and 50°C and a pH of between 3.0 and 8.0 is investigated. The thermodynamic parameters ΔG⁰, ΔS⁰ and ΔH⁰ for the process are evaluated. Temperature dependence of solubility is obtained by the equations ?log K_TCA = $9078.138 T$ ? 34.0468 + 0.0821421 T

Keywords:	Author for correspondence at the present address: Department of Chemistry Science College Chatrapur GM 761 020 India
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