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Loch, Patrick ; Martin, Thomas ; Grüner, Michael ; Kaupp, Günther ; Schwieger, Wilhelm ; Breu, Josef:
Synthesis of Large Platelets of Egyptian Blue via Pseudomorphosis after NaRUB-18.
In: Zeitschrift für anorganische und allgemeine Chemie.
Bd. 646
(2020)
Heft 18
.
- S. 1570-1574.
ISSN 1521-3749
DOI: https://doi.org/10.1002/zaac.202000203
Abstract
A colored platy substrate with appreciable aspect ratio can improve the hiding power while extending the color range of pearlescent pigments. One of the oldest synthetic pigments, Egyptian blue, possesses a layered structure and a platy morphology, making it a promising colored substrate for pearlescent pigments, which derives its blue color from Cu-II. Unfortunately, existing synthesis routes are either not technically benign or lack the natural platy morphology. Here, we introduce a new synthesis route starting with large, square-shaped platelets of a synthetic layered sodium silicate (NaRUB-18). As evidenced by Rietveld refinement and scanning electron microscopy, NaRUB-18 can be converted with conservation of this attractive morphology (pseudomorphosis) into Egyptian blue.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Egyptian blue; Solid state synthesis; Pseudomorphosis; NaRUB-18; Layered silicic acid; TOPOTACTIC CONDENSATION; CRYSTAL-STRUCTURE; LAYER SILICATES; ZEOLITE; PIGMENTS; CONVERSION; KANEMITE; SODIUM; COPPER; RWR |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Anorganische Chemie I > Lehrstuhl Anorganische Chemie I - Univ.-Prof. Dr. Josef Breu |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 06 Apr 2023 06:22 |
| Letzte Änderung: | 06 Apr 2023 06:22 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/75859 |