Low-temperature heat capacity and thermodynamic properties of crystalline lead formate

Zhang, J.; Liu, Y. Y.; Zhang, Z. H.; Lv, Xue-Chuan; Sun, Lin; Xu, Fen; Tan, Zhi‐Cheng; Zhang, T.; Sawada, Yutaka

doi:10.1007/s10973-006-7510-9

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…The TGA trace suggested that this was a two-step process. On the basis of previous studies of thermal decomposition of lead formate, Pb(CHOO) 2 , it is expected that the decomposition intermediate is a basic lead carbonate compound or a mixture of lead oxide and lead carbonate. , Using the temperature ramp rate of 5 °C/min, two small endothermic features were observed in the DSC trace between 400 and 600 °C, but only very broad mass changes could be seen. When this temperature range was reexamined using a ramp rate of 2 °C/min, a gradual mass increase was observed, followed by a distinct, endothermic mass loss of 1.5% at 565 °C.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Structures of Pb₃O₂(CH₃COO)₂·0.5H₂O and Pb₂O(HCOO)₂: Two Corrosion Products Revisited

et al. 2010

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Reactions of carboxylic acids with lead play an important role in the atmospheric corrosion of lead and lead-tin alloys. This is of particular concern for the preservation of lead-based cultural objects, including historic lead-tin alloy organ pipes. Two initial corrosion products, Pb(3)O(2)(CH(3)COO)(2)·0.5H(2)O (1) and Pb(2)O(HCOO)(2) (2), had been identified through powder diffraction fingerprints in the Powder Diffraction File, but their structures had never been determined. We have crystallized both compounds using hydrothermal solution conditions, and structures were determined using laboratory and synchrotron single-crystal X-ray diffraction data. Compound 1 crystallizes in P1, and 2 in Cccm. These compounds may be viewed as inorganic-organic networks containing single and double chains of edge-sharing Pb(4)O tetrahedra and have structural similarities to inorganic basic lead compounds. Bond valence sum analysis has been applied to the hemidirected lead coordination environments in each compound. Atmospheric exposure experiments contribute to understanding of the potential for conversion of these short-term corrosion products to hydrocerussite, Pb(3)(CO(3))(2)(OH)(2), previously identified as a long-term corrosion product on lead-rich objects. Each compound was also characterized by elemental analysis, thermogravimetric analysis and differential scanning calorimetry (TGA-DSC), and Raman spectroscopy.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Structures of Pb₃O₂(CH₃COO)₂·0.5H₂O and Pb₂O(HCOO)₂: Two Corrosion Products Revisited

et al. 2010

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“…The title compound can be obtained easily via literature methods [see, for example, Zhang et al (2007) and Arnaiz et al (2010)]. In the present work, crystals of lead formate were obtained by fractional crystallization from a formic-acid-containing solution of lead palmitate.…”

Section: Methodsmentioning

confidence: 95%

Re-investigation of lead(II) formate

Lanza

Gambirasi

Favaro³

et al. 2012

Acta Crystallogr C

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The crystal structure of the title compound, poly[di-μ(4)-formato-lead(II)], [Pb(HCOO)(2)](n), has been re-investigated. It consists of a three-dimensional polymeric network of Pb(2+) nodes connected by bridging formate anions. Despite having been described previously, the structural information available so far [Harrison & Steel (1982). J. Organomet. Chem. 239, 105-113] is incomplete and the reported Pnma space group is incorrect. In this work, the space-group assignment to P2(1)2(1)2(1) is discussed and a complete description of the structural features of lead(II) formate is provided.

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Lead formate synthesized from the lead compounds in spent lead-acid batteries and its use in high performance ones

Nie,

Zhang,

et al. 2023

J Solid State Electrochem

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Low-temperature heat capacity and thermodynamic properties of crystalline lead formate

Cited by 3 publications

References 13 publications

Synthesis and Structures of Pb₃O₂(CH₃COO)₂·0.5H₂O and Pb₂O(HCOO)₂: Two Corrosion Products Revisited

Synthesis and Structures of Pb₃O₂(CH₃COO)₂·0.5H₂O and Pb₂O(HCOO)₂: Two Corrosion Products Revisited

Re-investigation of lead(II) formate

Lead formate synthesized from the lead compounds in spent lead-acid batteries and its use in high performance ones

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Low-temperature heat capacity and thermodynamic properties of crystalline lead formate

Cited by 3 publications

References 13 publications

Synthesis and Structures of Pb3O2(CH3COO)2·0.5H2O and Pb2O(HCOO)2: Two Corrosion Products Revisited

Synthesis and Structures of Pb3O2(CH3COO)2·0.5H2O and Pb2O(HCOO)2: Two Corrosion Products Revisited

Re-investigation of lead(II) formate

Lead formate synthesized from the lead compounds in spent lead-acid batteries and its use in high performance ones

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Product

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Synthesis and Structures of Pb₃O₂(CH₃COO)₂·0.5H₂O and Pb₂O(HCOO)₂: Two Corrosion Products Revisited

Synthesis and Structures of Pb₃O₂(CH₃COO)₂·0.5H₂O and Pb₂O(HCOO)₂: Two Corrosion Products Revisited