The impact of reagents concentration on the efficiency of obtaining high-purity magnesium hydroxide
Authors:
- Piotr Radomski,
- Andrzej Jarosiński,
- Zbigniew Wzorek,
- Anna K. Nowak
Abstract
The work presents the impact of reagents concentration and the drying process on the effi ciency of obtaining magnesium hydroxide and its specifi c surface area. Magnesium sulphate(VI) within the concentration range of 0.7–2.0 mol/dm3 was used in the research as magnesium feedstock and sodium hydroxide was used as a precipitating agent within the same concentration range. The process of obtaining magnesium hydroxide was carried out with a 25% excess of the precipitating agent in relation to the reaction stoichiometry. The obtained suspension was separated by way of multi-stage sedimentation with the use of acetone and freezing samples. Depending on the concentration of reagents the effi ciency of obtaining magnesium hydroxide fell within the range of 88–99%, whereas the specifi c surface area – within 115–609 m2/g, while the high purity of samples above 99% of magnesium hydroxide was maintained.
- Record ID
- CUTe12666759aaf4763b22e5aa4bfec4b9e
- Publication categories
- ;
- Author
- Journal series
- Polish Journal of Chemical Technology, ISSN 1509-8117, e-ISSN 1899-4741
- Issue year
- 2020
- Vol
- 22
- No
- 2
- Pages
- 73-77
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 77; Bibliografia (liczba pozycji) - 15; Oznaczenie streszczenia - Streszcz. ang.; Numeracja w czasopiśmie - Vol. 22, Iss. 2
- Keywords in English
- magnesium hydroxide, precipitation method, inorganic flame retardants
- DOI
- DOI:10.2478/pjct-2020-0019 Opening in a new tab
- URL
- https://content.sciendo.com/view/journals/pjct/22/2/pjct.22.issue-2.xml Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 70
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTe12666759aaf4763b22e5aa4bfec4b9e/
- URN
urn:pkr-prod:CUTe12666759aaf4763b22e5aa4bfec4b9e
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.