Pyro and Kinetic Studies of Barium Oxalate Crystals Grown in Agar Gel

Dalal, P. V.; Saraf, K. B.; Shimpi, Navinchandra G.; Shah, Navneet R.

doi:10.4236/jcpt.2012.24023

Cited by 13 publications

(4 citation statements)

References 20 publications

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“… 23 In the process of decomposition, the dynamic Gibb's free energy change may be due to the fundamental criteria of spontaneous reaction. 24 The negative scale of entropy was assigned to the highly ordered structure of the activated complex rather than to that of its reactants. 25 The endothermic nature of dissociation processes were authenticated by the positive value of enthalpy.…”

Section: Resultsmentioning

confidence: 99%

The exploration of the crystal nucleation parameters and physico-chemical analysis of a single crystal: 2-amino-4,6-dimethoxypyrimidinium hydrogen (2R,3R)-tartrate 2-amino-4,6-dimethoxypyrimidine

Era

Jauhar²,

Viswanathan

et al. 2021

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

The exploration of the crystal nucleation parameters and physico-chemical analysis of a single crystal: 2-amino-4,6-dimethoxypyrimidinium hydrogen (2R,3R)-tartrate 2-amino-4,6-dimethoxypyrimidine

Era

Jauhar²,

Viswanathan

et al. 2021

RSC Adv.

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“…The kinetic and thermodynamic parameters of degradation phases were calculated using Coats and Redfern method [16,17]. Eqns.…”

Section: Thermogravimetric (Tg) Studiesmentioning

confidence: 99%

Impact of Al3+ Ions Incorporation on the Enhancement of Optical and Electrical Properties of Cadmium Oxalate Crystals

Ganavi,

Jagannatha,

Nagaraja

et al. 2024

ajc

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Aluminium (impurity ion) incorporated cadmium oxalate (ACO) crystals were grown in a silica hydrogel media by diffusion technique. ACO crystals emerged with the dimension 6´2´1.5 mm3 at the optimizing parameters of gel pH 4.2, gel density 1.01 g cm-3, SMS: oxalic acid of 5:4 and supernatant mixture at an equal ratio (1:1). Further, the extracted crystals were analyzed by employing Energy dispersive X-ray analysis (EDAX), Fourier transform infrared (FTIR) spectroscopy and Thermogravimetric (TG) studies. EDAX measurements confirmed the presence of cations at the ratio Cd2+:Al3+= 65.67:1. FTIR spectra identified O-H, C-C, C-O, C=O and M-O bonds in the crystal armature. TG analysis showed two decomposition phases of foregrounded crystals with thermal stability up to 1076.79 oC in the metal oxide state with minimum change in entropy (∆S = -266.95 J mol-1 K-1). ACO crystal crystallized in a triclinic system. The optical and electrical behaviors of ACO crystals were compared with pure cadmium oxalate crystals. ACO crystals showed complete transparency to visible light and maximum absorption in the UV region like pure/parent crystals but the energy gap was reduced to 5.90 eV. The leakage resistance of ACO crystals was also reduced to 6.583 GΩ and the electrical conductivity coefficient was enhanced to 0.152 S m-1 oC-1 from parent cadmium oxalate crystals.

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“…[ 6,7 ] Mostly, the metal oxalate crystals were grown through the gel method by single diffusion technique and reported that the gel method was suitable for the growth of well‐developed and notably transparent crystals of pure metal oxalates. [ 8–11 ] Glycine (NH 2 CH 2 COOH) is the simplest amino acid and exhibits three polymeric crystalline forms α, β, and γ. [ 12,13 ] The glycine exists as zwitterions in solid and solution but as a neutral molecule in the gaseous state.…”

Section: Introductionmentioning

confidence: 99%

Characterization Studies of Solution Grown Triglycine Oxalate Single Crystals

Premkumar

2022

Crystal Research and Technology

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Triglycine oxalate single crystal is grown by a slow evaporation technique from the saturated solution at the predetermined temperature. X‐ray diffraction studies of the grown crystal reveal that the grown crystal belongs to a monoclinic structure. The presence of elements and various functional groups of the triglycine oxalate is found in the Fourier transform infrared analysis. Optical transparency of the grown crystals is found to have the maximum transparency in the entire visible region. Thermogravimetric analysis shows that the grown crystals have three stages of decomposition. The microhardness of the grown crystals exhibits that the crystal is a soft material. The electrical studies such as dielectric constant, and dielectric loss are determined for the frequency range from 100 Hz to 200 kHz at different temperatures.

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Pyro and Kinetic Studies of Barium Oxalate Crystals Grown in Agar Gel

Cited by 13 publications

References 20 publications

The exploration of the crystal nucleation parameters and physico-chemical analysis of a single crystal: 2-amino-4,6-dimethoxypyrimidinium hydrogen (2R,3R)-tartrate 2-amino-4,6-dimethoxypyrimidine

The exploration of the crystal nucleation parameters and physico-chemical analysis of a single crystal: 2-amino-4,6-dimethoxypyrimidinium hydrogen (2R,3R)-tartrate 2-amino-4,6-dimethoxypyrimidine

Impact of Al3+ Ions Incorporation on the Enhancement of Optical and Electrical Properties of Cadmium Oxalate Crystals

Characterization Studies of Solution Grown Triglycine Oxalate Single Crystals

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