Substitution reaction
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JinoJi
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Substitution reaction


The formula Hydroxylapatite is Ca10(PO4)6(OH)2, is it possible to Cu ( Copper ) replace the Ca10? and what is it formula? is it something like this Cu10(PO4)6(OH)2 ?

thx for answering
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ChenBeier
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Dont think so, it will be simple copper phosphate hydroxide

Libethenite http://www.galleries.com/libethenite

Cornehite http://www.galleries.com/Cornetite

Pseudomalachite http://www.galleries.com/Pseudomalachite
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JinoJi
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ChenBeier wrote:
Dont think so, it will be simple copper phosphate hydroxide

Libethenite http://www.galleries.com/libethenite

Cornehite http://www.galleries.com/Cornetite

Pseudomalachite http://www.galleries.com/Pseudomalachite


thx for answering, im a dentistry student. based on what i read, cu2+ can replace Ca in this HA formula ( Ca10(PO4)6(OH)2 ) in human teeth, what is final formula for that? is it Cu10(PO4)6(OH)2 ?
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ChenBeier
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Probably only one or two copperions exchange, but I dont think that all calcium will be replaced, because I showed you the copper phosphate hydroxide minerals already. There is not such formulation.

Ca9Cu(PO4)6(OH)2 or Ca8Cu2(PO4)6(OH)2

Otherwise the word Blue tooth will get a new meaning. Very Happy Very Happy Very Happy Very Happy Very Happy
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JinoJi
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ChenBeier wrote:
Probably only one or two copperions exchange, but I dont think that all calcium will be replaced, because I showed you the copper phosphate hydroxide minerals already. There is not such formulation.

Ca9Cu(PO4)6(OH)2 or Ca8Cu2(PO4)6(OH)2

Otherwise the word Blue tooth will get a new meaning. Very Happy Very Happy Very Happy Very Happy Very Happy


whoaaa thx so much, hahaha blue tooth XD
and next question is what if this Ca8Cu2(PO4)6(OH)2 meet H+
like Ca8Cu2(PO4)6(OH)2 + H+ =
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ChenBeier
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The same what happens before. Decomposition. The copper will be dissolved more easilier because solubilty is better as calcium. Depending of the anion of the acid.
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ChenBeier wrote:
The same what happens before. Decomposition. The copper will be dissolved more easilier because solubilty is better as calcium. Depending of the anion of the acid.


i dont know formula of the acid, but its say the acid from peat swarm water is humic acid and fulvic acid

what if just H+, sorry i cant remember redox reaction from school. can u equilibrium it. thx again
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JinoJi
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JinoJi wrote:
ChenBeier wrote:
The same what happens before. Decomposition. The copper will be dissolved more easilier because solubilty is better as calcium. Depending of the anion of the acid.


i dont know formula of the acid, but its say the acid from peat swarm water is humic acid and fulvic acid

what if just H+, sorry i cant remember redox reaction from school. can u equilibrium it. thx again


hey i just found out this Ca8Cu2(PO4)6(OH)2 + 8 H{+} = 8 Ca{2+} + 2 Cu{2+} + 6 (HPO4){2-} + 2 H2O. is this correct ?
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ChenBeier
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Sounds good.
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ChenBeier wrote:
Sounds good.

oke thx, u such a good man. can i have your curriculum vitae. i want to add u to my citations. if u can u can PM me
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ChenBeier wrote:
Sounds good.


haloo mr chen, i have another problem. based on literature that i have read, the phosphate on HA ( Ca10(PO4)6OH2 ) can be replace 1:1 by selenite SeO3{2-}. and what is it final formula ?
Embarassed

thnks again for answering
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ChenBeier
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2 PO4 3- are equal to 3 SeO3 2-

Mathematics

( Ca10(SeO3)9(OH)2 )


Last edited by ChenBeier on Tue Jul 24, 2018 3:45 am; edited 1 time in total
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JinoJi
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ChenBeier wrote:
2 PO4 3- are equal to 3 SeO3 2-

Mathematics

( Ca10(SeO3)9OH2 )


thx again mr ChenBeier, Wink Wink Wink
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JinoJi
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ChenBeier wrote:
2 PO4 3- are equal to 3 SeO3 2-

Mathematics

( Ca10(SeO3)9OH2 )


halo mr ChenBeier
Very Happy
i was tried to equlizer Ca10(SeO3)9OH2 + 11 H{+}, but it seem to imposible to equalizer it. any solution?
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ChenBeier
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What do you mean with equalize?

Ca10(SeO3)9(OH)2 + 20 H+ => 10 Ca 2+ 9 SeO2 + 11 H2O
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