High-temperature Reactions in the Co3Cr4(PO4)6-Cr(PO3)3 System: New Compound CoCr2(P2O7)2 and its Properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39910489" target="_blank" >RIV/00216275:25310/17:39910489 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10973-017-6390-5" target="_blank" >http://dx.doi.org/10.1007/s10973-017-6390-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10973-017-6390-5" target="_blank" >10.1007/s10973-017-6390-5</a>

Result language
angličtina
Original language name
High-temperature Reactions in the Co3Cr4(PO4)6-Cr(PO3)3 System: New Compound CoCr2(P2O7)2 and its Properties
Original language description
A new dichromium(III) cobalt(II) diphosphate(V) of the formula CoCr2(P2O7)2 was detected in the Co3Cr4(PO4)6-Cr(PO3)3 system. The new compound was obtained as a result of high-temperature solid-state reactions between CoCO3, Cr2O3 and (NH4)2HPO4 as well as between Cr(PO3)3 and Co3Cr4(PO4)6. CoCr2(P2O7)2 was characterized using XRD, DTA and IR methods. Results demonstrated that CoCr2(P2O7)2 crystallizes in the triclinic system and its unit cell parameters were calculated. Its infrared spectrum was presented. CoCr2(P2O7)2 melts incongruently at 1270 +/- 10 degrees C with a formation of solid alpha-CrPO4. The compound Co3Cr4(PO4)6, component of the system under study, was obtained for the first time as a pure phase. Its thermal stability was also investigated. Co3Cr4(PO4)6 is stable in air up to 1410 +/- 20 degrees C.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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