鋁磷灰石???
Synthesis[edit]
Lee et al. provide a method for chemical synthesis of LK-99 material[9]:?2? by producing lanarkite from a 1:1 molar mixing of lead(II) oxide (PbO) and lead(II) sulfate (Pb(SO4)) powders, then heating at 725 °C (1,000 K; 1,340 °F) for 24 hours:
- PbO + Pb(SO4) → Pb2(SO4)O
Additionally, copper(I) phosphide (Cu3P) was produced by mixing copper (Cu) and phosphorus (P) powders in a 3:1 molar ratio in a sealed tube under a vacuum and heated to 550 °C (820 K; 1,000 °F) for 48 hours:[9]:?3?
- 3 Cu + P → Cu3P
Lanarkite and copper phosphide crystals were ground into a powder, placed in a sealed tube under a vacuum, and heated to 925 °C (1,200 K; 1,700 °F) for between 5?20 hours:[9]:?3?
- Pb2(SO4)O + Cu3P → Pb10-xCux(PO4)6O + S (g), where (0.9 < x < 1.1)
The above reaction may not be balanced. A paper by Kapil Kumar et al. reported the presence of Cu2S as well.[10] A balanced reaction might be:
- 5 Pb2SO4O + 6 Cu3P → Pb9Cu(PO4)6O + 5 Cu2S + Pb + 7 Cu[citation needed]
- 許多人認為這是在pull eggs
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