Precipitation of Phosphorus as NH4[MgPO4] · xH2O in the Presence of Citrates, d,l-tartaric Acid, and Their Complexes with Vanadium and Molybdenum
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Russian Journal of Inorganic Chemistry
ISSN: 0036-0236
, E-ISSN: 1531-8613
|
| Output data |
Year: 2010,
Volume: 55,
Number: 3,
Pages: 472-478
Pages count
: 7
DOI:
10.1134/S0036023610030319
|
| Authors |
Odyakov V.F.
1
,
Zhizhina E.G.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
|
For determination of phosphorus in Mo-V-phosphoric heteropoly acid solutions, it must be separated from considerable amounts of vanadium and molybdenum by precipitation as NH4[MgPO4] · xH2O. It is shown that the known method of its precipitation in citrate medium is too slow because of low reactivity of Mg(II)-citrate complexes. We propose to precipitate NH4[MgPO4] · xH2O in the presence of d,l-tartaric and next to purify the prepared precipitate. This method permits to shorten preparation of the pure precipitate in several times.