Geopolymers
Inorganic polymeric new materials
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Ray L. Frost
Ray L. Frost
Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, GPO Box 2434, Brisbane Queensland 4001, Australia
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Sara J. Palmer
Sara J. Palmer
Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, GPO Box 2434, Brisbane Queensland 4001, Australia
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Abstract
Thermogravimetric analysis has been used to determine the thermal stability of the mineral stercorite H(NH4)Na(PO4)·4H2O. The mineral stercorite originated from the Petrogale Cave, Madura, Eucla, Western Australia. This cave is one of many caves in the Nullarbor Plain in the South of Western Australia. The mineral is formed by the reaction of bat guano chemicals on calcite substrates. Upon thermal treatment the mineral shows a strong decomposition at 191 °C with loss of water and ammonia. Other mass loss steps are observed at 158, 317 and 477 °C. Ion current curves indicate a gain of CO2 at higher temperature and are attributed to the thermal decomposition of calcite impurity.
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1. Bridge, PJ. Archerite (K, NH4)H2PO4, a new mineral from Madura, Western Australia. Mineral Mag. 1977;41:33–35. .
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2. Bridge, PJ, Clark, RM. Mundrabillaite—a new cave mineral from Western Australia. Mineral Mag. 1983;47:80–81. .
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3. Platford, RF. Thermodynamics of system water-disodium hydrogen phosphate-diammonium hydrogen phosphate at 25°. J Chem Eng Data. 1974;19:166–168. .
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4. Cheng, H, Yang, J, Frost, RL, Liu, Q, Zhang, Z. Thermal analysis and Infrared emission spectroscopic study of kaolinite-potassium acetate intercalate complex. J Therm Anal Calorim. 2011;103:507–513. .
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5. Bakon, KH, Palmer, SJ, Frost, RL. Thermal analysis of synthetic reevesite and cobalt substituted reevesite (Ni, Co)6Fe2(OH)16(CO3) ·4H2O. J Therm Anal Calorim. 2010;100:125–131. .
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6. Cheng, H, Liu, Q, Yang, J, Frost, RL. Thermogravimetric analysis of selected coal-bearing strata kaolinite. Thermochim Acta. 2010;507–508:84–90. .
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7. Cheng, H, Liu, Q, Yang, J, Zhang, J, Frost, RL. Thermal analysis and infrared emission spectroscopic study of halloysite-potassium acetate intercalation compound. Thermochim Acta. 2010;511:124–128. .
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8. Cheng, H, Liu, Q, Yang, J, Zhang, Q, Frost, RL. Thermal behavior and decomposition of kaolinite-potassium acetate intercalation composite. Thermochim Acta. 2010;503–504:16–20. .
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9. Frost, RL, Palmer, SJ, Grand, L-M. Synthesis and thermal analysis of indium-based hydrotalcites of formula Mg6In2(CO3)(OH)16·4H2O. J Therm Anal Calorim. 2010;101:859–863. .
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10. Frost, RL, Palmer, SJ, Kristof, J, Horvath, E. Dynamic and controlled rate thermal analysis of halotrichite. J Therm Anal Calorim. 2010;99:501–507. .
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11. Frost, RL, Palmer, SJ, Kristof, J, Horvath, E. Thermoanalytical studies of silver and lead jarosites and their solid solutions. J Therm Anal Calorim. 2010;101:73–79. .
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12. Grand, L-M, Palmer, SJ, Frost, RL. Synthesis and thermal stability of hydrotalcites containing manganese. J Therm Anal Calorim. 2010;100:981–985. .
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13. Grand, L-M, Palmer, SJ, Frost, RL. Synthesis and thermal stability of hydrotalcites based upon gallium. J Therm Anal Calorim. 2010;101:195–198. .
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14. Palmer, SJ, Frost, RL. Thermal decomposition of Bayer precipitates formed at varying temperatures. J Therm Anal Calorim. 2010;100:27–32. .
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15. Yang, J, Frost, RL, Martens, WN. Thermogravimetric analysis and hot-stage Raman spectroscopy of cubic indium hydroxide. J Therm Anal Calorim. 2010;100:109–116. .
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16. Anthony JW , Bideaux RA, Bladh KW, Nichols MC. Handbook of mineralogy, Vol. IV. Arsenates, phosphates, vanadates. Tucson: Mineral data Publishing; 2000.
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| Journal of Thermal Analysis and Calorimetry | |
|---|---|
| Language | English |
| Size | A4 |
| Year of Foundation |
1969 |
| Volumes per Year |
1 |
| Issues per Year |
24 |
| Founder | Akadémiai Kiadó |
| Founder's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. |
| Publisher | Akadémiai Kiadó Springer Nature Switzerland AG |
| Publisher's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11. |
| Responsible Publisher |
Chief Executive Officer, Akadémiai Kiadó |
| ISSN | 1388-6150 (Print) |
| ISSN | 1588-2926 (Online) |
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Temperature dependence of the rate of reaction in thermal analysis
The Arrhenius equation in condensed phase kinetics
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