THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS
The results of studies for thermal dehydration processes of protonated and hydrated phosphates of divalent metals and their ammonia and ammonium derivatives that were described by reversible and irreversible reactions, were generalized. It was shown the influence of pressure and temperature on cond...
Збережено в:
| Дата: | 2025 |
|---|---|
| Автори: | , , , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
V.I.Vernadsky Institute of General and Inorganic Chemistry
2025
|
| Онлайн доступ: | https://ucj.org.ua/index.php/journal/article/view/726 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Ukrainian Chemistry Journal |
Репозитарії
Ukrainian Chemistry Journal| id |
oai:ojs2.1444248.nisspano.web.hosting-test.net:article-726 |
|---|---|
| record_format |
ojs |
| spelling |
oai:ojs2.1444248.nisspano.web.hosting-test.net:article-7262025-09-26T11:53:58Z THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS Slobodyanik, Mykola Kopilevich, Volodymyr Voitenko, Larisa Savchenko, Dmytro Zhyliak, Ivan Panchuk, Tamara Prokopchuk, Nadiia Abarbarchuk, Leonid divalent metal phosphates, thermal analysis, thermolysis, dehydratation. The results of studies for thermal dehydration processes of protonated and hydrated phosphates of divalent metals and their ammonia and ammonium derivatives that were described by reversible and irreversible reactions, were generalized. It was shown the influence of pressure and temperature on conditions for obtaining intermediate and final thermolysis products of Mn2+, Co2+, Cu2+, Zn2+, Cd2+, Sr2+ phosphates. Thermal transformations of phosphates were studied by thermal analysis on a Q-1500D derivatograph using dynamic and quasi-isothermal heating regime. The methodology for determining the chemical nature of phosphates thermolysis included obtaining samples of intermediate dehydration products at typical points of thermal analysis curves and their studying by chemical analysis, quantitative paper chromatography. The IR spectra were taken on a Specord 75-IR spectrophotometer, and X-ray phase analysis was carried out on a DRON-UM1 diffractometer. The sequence of thermal transformations of hydrated heterometallic monophosphates of divalent metals and their ammonia and ammonium derivatives has been determined to assess the temperature ranges for obtaining of anhydrous complex phosphates with controlled cationic and anionic composition. The optimal temperature regimes for obtaining of dehydrated phosphates of Cu2+, Zn2+, Co2+, Сd2+, Ni2+ with individual composition have been determined in the process of thermolysis in various types of their compounds: – crystallohydrates of orthophosphates (M3(РО4)2∙nH2O) into anhydrous phosphates M3(РО4)2; – crystallohydrates of hydrogen phosphates and double ammonium phosphates (MHPO4·nH2O, MNH4PO4·nH2O) into anhydrous diphosphates M2P2O7; – crystallohydrates of basic phosphates (M2ОHPO4·nH2O) into oxyphosphates M4O(PO4)2; – aquaamminoorthophosphates [M3(NH3)x(H2O)y(PO4)2]∙nH2O into anhydrous phosphates M3(РО4)2; – double aquaamminoorthophosphates [M13-xM2х(NH3)y(H2O)z(PO4)2]∙nH2O into anhydrous double phosphates M13-xM2х(PO4)2; – triple aquaamminoorthophosphates [M13-x-уM2хM3y(NH3)y(H2O)z(PO4)2]∙nH2O into anhydrous triple phosphates M13-x-yM2хM3y(PO4)2. V.I.Vernadsky Institute of General and Inorganic Chemistry 2025-06-25 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/726 10.33609/2708-129X.91.5.2025.3-20 Ukrainian Chemistry Journal; Vol. 91 No. 5 (2025): Ukrainian Chemistry Journal; 3-20 Украинский химический журнал; Том 91 № 5 (2025): Ukrainian Chemistry Journal; 3-20 Український хімічний журнал; Том 91 № 5 (2025): Ukrainian Chemistry Journal; 3-20 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/726/366 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2025-09-26T11:53:58Z |
| collection |
OJS |
| language |
English |
| topic_facet |
divalent metal phosphates thermal analysis thermolysis dehydratation. |
| format |
Article |
| author |
Slobodyanik, Mykola Kopilevich, Volodymyr Voitenko, Larisa Savchenko, Dmytro Zhyliak, Ivan Panchuk, Tamara Prokopchuk, Nadiia Abarbarchuk, Leonid |
| spellingShingle |
Slobodyanik, Mykola Kopilevich, Volodymyr Voitenko, Larisa Savchenko, Dmytro Zhyliak, Ivan Panchuk, Tamara Prokopchuk, Nadiia Abarbarchuk, Leonid THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS |
| author_facet |
Slobodyanik, Mykola Kopilevich, Volodymyr Voitenko, Larisa Savchenko, Dmytro Zhyliak, Ivan Panchuk, Tamara Prokopchuk, Nadiia Abarbarchuk, Leonid |
| author_sort |
Slobodyanik, Mykola |
| title |
THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS |
| title_short |
THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS |
| title_full |
THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS |
| title_fullStr |
THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS |
| title_full_unstemmed |
THERMAL DEHYDRATION OF PHOSPHATE AS METHOD OF OBTAINING NEW MATERIALS |
| title_sort |
thermal dehydration of phosphate as method of obtaining new materials |
| description |
The results of studies for thermal dehydration processes of protonated and hydrated phosphates of divalent metals and their ammonia and ammonium derivatives that were described by reversible and irreversible reactions, were generalized. It was shown the influence of pressure and temperature on conditions for obtaining intermediate and final thermolysis products of Mn2+, Co2+, Cu2+, Zn2+, Cd2+, Sr2+ phosphates.
Thermal transformations of phosphates were studied by thermal analysis on a Q-1500D derivatograph using dynamic and quasi-isothermal heating regime. The methodology for determining the chemical nature of phosphates thermolysis included obtaining samples of intermediate dehydration products at typical points of thermal analysis curves and their studying by chemical analysis, quantitative paper chromatography. The IR spectra were taken on a Specord 75-IR spectrophotometer, and X-ray phase analysis was carried out on a DRON-UM1 diffractometer.
The sequence of thermal transformations of hydrated heterometallic monophosphates of divalent metals and their ammonia and ammonium derivatives has been determined to assess the temperature ranges for obtaining of anhydrous complex phosphates with controlled cationic and anionic composition. The optimal temperature regimes for obtaining of dehydrated phosphates of Cu2+, Zn2+, Co2+, Сd2+, Ni2+ with individual composition have been determined in the process of thermolysis in various types of their compounds:
– crystallohydrates of orthophosphates (M3(РО4)2∙nH2O) into anhydrous phosphates M3(РО4)2;
– crystallohydrates of hydrogen phosphates and double ammonium phosphates (MHPO4·nH2O, MNH4PO4·nH2O) into anhydrous diphosphates M2P2O7;
– crystallohydrates of basic phosphates (M2ОHPO4·nH2O) into oxyphosphates M4O(PO4)2;
– aquaamminoorthophosphates [M3(NH3)x(H2O)y(PO4)2]∙nH2O into anhydrous phosphates M3(РО4)2;
– double aquaamminoorthophosphates
[M13-xM2х(NH3)y(H2O)z(PO4)2]∙nH2O into anhydrous double phosphates
M13-xM2х(PO4)2;
– triple aquaamminoorthophosphates
[M13-x-уM2хM3y(NH3)y(H2O)z(PO4)2]∙nH2O into anhydrous triple phosphates
M13-x-yM2хM3y(PO4)2. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2025 |
| url |
https://ucj.org.ua/index.php/journal/article/view/726 |
| work_keys_str_mv |
AT slobodyanikmykola thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT kopilevichvolodymyr thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT voitenkolarisa thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT savchenkodmytro thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT zhyliakivan thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT panchuktamara thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT prokopchuknadiia thermaldehydrationofphosphateasmethodofobtainingnewmaterials AT abarbarchukleonid thermaldehydrationofphosphateasmethodofobtainingnewmaterials |
| first_indexed |
2025-09-26T01:42:08Z |
| last_indexed |
2025-09-27T01:59:11Z |
| _version_ |
1849658136728698880 |