Substitution reaction

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JinoJi
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Substitution reaction

Post by JinoJi »

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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Post by ChenBeier »

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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Post by JinoJi »

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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Post by ChenBeier »

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. :D :D :D :D :D
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Post by JinoJi »

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. :D :D :D :D :D
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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Post by ChenBeier »

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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Post by JinoJi »

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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Post by JinoJi »

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 Ca2+ + 2 Cu2+ + 6 (HPO4)2- + 2 H2O. is this correct ?
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Post by ChenBeier »

Sounds good.
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Post by JinoJi »

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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Post by JinoJi »

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 SeO32-. and what is it final formula ?
:oops:

thnks again for answering
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Post by ChenBeier »

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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Post by JinoJi »

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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Post by JinoJi »

ChenBeier wrote:2 PO4 3- are equal to 3 SeO3 2-

Mathematics

( Ca10(SeO3)9OH2 )
halo mr ChenBeier
:D
i was tried to equlizer Ca10(SeO3)9OH2 + 11 H+, but it seem to imposible to equalizer it. any solution?
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Post by ChenBeier »

What do you mean with equalize?

Code: Select all

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