| Autor: |
Patel, C, André-Joyaux, E, Leitch, JA, de Irujo-Labalde, XM, Ibba, F, Struijs, J, Ellwanger, MA, Paton, R, Browne, DL, Pupo, G, Aldridge, S, Hayward, MA, Gouverneur, V |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| DOI: |
10.1126/science.adi1557 |
| Popis: |
All fluorochemicals—including elemental fluorine and nucleophilic, electrophilic, and radical fluorinating reagents—are prepared from hydrogen fluoride (HF). This highly toxic and corrosive gas is produced by the reaction of acid-grade fluorspar (>97% CaF2) with sulfuric acid under harsh conditions. The use of fluorspar to produce fluorochemicals via a process that bypasses HF is highly desirable but remains an unsolved problem because of the prohibitive insolubility of CaF2. Inspired by calcium phosphate biomineralization, we herein disclose a protocol of treating acid-grade fluorspar with dipotassium hydrogen phosphate (K2HPO4) under mechanochemical conditions. The process affords a solid composed of crystalline K3(HPO4)F and K2−xCay(PO3F)a(PO4)b, which is found suitable for forging sulfur-fluorine and carbon-fluorine bonds. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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