Method Article
Growth of Hydroxyapatite Huge Single Crystals by Hydrothermal decomposition of PolyPhosphate
Hideaki Narusawa
Hydroxy-apatite
Corresponding Author
Abstract
Using Polyphosphate, Calcium mixture and water, causes pure single apatite crystal by hydrothermal synthesis.
Keywords
Hydroxyapatite monocrystal pure
Figures
Figure 1
Figure 2
Figure 3
Figure 4
Reagents
water
Calcium Oxide
Ortho Phosphate
Equipment
Pressure vessel
PTFE Beaker
Procedure
Prepare Polyphosphate
Put Orthophosphate into the chemical resistant Beaker, e.x PTFE, keep it 210degrees Celsius at least 2 weeks.
Hydrothermal Synthesis
PTFE High pressure reactor vessel, 25ml volume, put 0.5g of upper polyphosphate. add 0.6-0.7g Calcium oxide then mix them. add 12-14ml water, Tighten the vessel and put into electro Furness 200-240C. Keep it for 5-7days.
You can find mm size Hydroxyapatite crystals.
Timing
2 weeks or more for prepare polyphosphate.
1 week for Hydroxyapatite synthetization.
Anticipated Results
References
1.Perloff, A., & POSNER, A. S. (1956). Preparation of Pure Hydroxyapatite Crystals. Science (New York, N.Y.), 124(3222), 583–4.
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Method Article
Growth of Hydroxyapatite Huge Single Crystals by Hydrothermal decomposition of PolyPhosphate
Hideaki Narusawa
Hydroxy-apatite
Corresponding Author
Article
Peer Review Timeline
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Comments
Abstract
Using Polyphosphate, Calcium mixture and water, causes pure single apatite crystal by hydrothermal synthesis.
Figures
Figure 1
Figure 2
Figure 3
Figure 4
Reagents
water
Calcium Oxide
Ortho Phosphate
Equipment
Pressure vessel
PTFE Beaker
Procedure
Prepare Polyphosphate
Put Orthophosphate into the chemical resistant Beaker, e.x PTFE, keep it 210degrees Celsius at least 2 weeks.
Hydrothermal Synthesis
PTFE High pressure reactor vessel, 25ml volume, put 0.5g of upper polyphosphate. add 0.6-0.7g Calcium oxide then mix them. add 12-14ml water, Tighten the vessel and put into electro Furness 200-240C. Keep it for 5-7days.
You can find mm size Hydroxyapatite crystals.
Timing
2 weeks or more for prepare polyphosphate.
1 week for Hydroxyapatite synthetization.
Anticipated Results
References
1.Perloff, A., & POSNER, A. S. (1956). Preparation of Pure Hydroxyapatite Crystals. Science (New York, N.Y.), 124(3222), 583–4.
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