Thermal and electrochemical behavior of acidic pyrophosphate (NH4)2Zn(H2P2O7)2.2H2O

Autor:	M. Ouakki, Redouane Khaoulaf, K. Brouzi, Fatima Zahra Elhafiane, Mohamed Harcharras
Rok vydání:	2020
Předmět:	010405 organic chemistry Chemistry Cyclotetraphosphate Organic Chemistry Inorganic chemistry 010402 general chemistry Electrochemistry 01 natural sciences Biochemistry Pyrophosphate 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Thermal X-ray crystallography Thermal analysis
Zdroj:	Phosphorus, Sulfur, and Silicon and the Related Elements. 195:994-1000
ISSN:	1563-5325 1042-6507
Popis:	A study on the acidic pyrophosphate dehydrate (NH4)2Zn(H2P2O7)2.2H2O, has been reperformed in order to investigate its thermal and electrochemical behavior. The results of thermal analysis (TGA-DTA), X-ray diffraction and infrared spectra showed that (NH4)2Zn(H2P2O7)2.2H2O decomposes into an amorphous phase at 460 °C, then around 910 °C, the appearance of another crystalline phase is found. X-ray diffraction and infrared spectra have shown that it is the cyclotetraphosphate Zn2P4O12. The corrosion protection efficiency of (NH4)2Zn(H2P2O7)2.2H2O using electrochemical measurements is also discussed in this paper. The satisfactory results confirm that this compound can be a good inhibitor of corrosion of mild steel in an acid medium.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16337d84eb706df9486df096981a931a https://doi.org/10.1080/10426507.2020.1768536 Zobrazit plný text záznamu