sudhiarta
Harmless
Posts: 2
Registered: 29-4-2018
Member Is Offline
Mood: No Mood
|
|
comparison between CaCO3 and ZnCO3
Guys I need help with my research
I'm having problem with CaCO3 scale and I'm gonna use ZN2+ as intervention agent so that CaCO3 can be minimalize. I've try to analyze it with galvanic
volta prediction and I got that the reaction between Zn and Ca can be a spontaneous reaction.
the reaction is Ca(HCO3)2 + ZN => Zn(HCO3)2 + Ca
my questions are :
1. is my reaction correct ?
2. we know that ZnCo3 isn't soluble in water , is it safer than CaCO3 ??
3. maybe anyone can give me more about ZnCO3 physical and chemical properties would be better
a fast respon would very appreciate guys really need help
thank you
|
|
|
DraconicAcid
International Hazard
Posts: 4333
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline
Mood: Semi-victorious.
|
|
I can't think of much that would be safer than calcium carbonate. And no, zinc is not going to displace calcium from solution.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
|
|
|
sudhiarta
Harmless
Posts: 2
Registered: 29-4-2018
Member Is Offline
Mood: No Mood
|
|
so could u give me the most possibly reaction between Zinc and CaCO3 if we want to remove the scaling that happened ?
|
|
|
woelen
Super Administrator
Posts: 8012
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
Zinc and CaCO3 do not react at all, unless maybe when heated at 1000 C or so.
If you have hard water (with a lot of Ca(HCO3)2 dissolved in it, then you could use calgon to minimize formation of calcium carbonate or pre-heat the
water before it gets in sensitive equipment. This leads to formation of calcium carbonate outside of the sensitive equipment: Ca(HCO3)2 --> CaCO3 +
H2O + CO2
You also every now and then can descale the equipment, e.g. with dilute sulfamic acid or dilute acetic acid.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
