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Strontium Perchlorate via the Perchloric acid route.


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#1 Rob.L.

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Posted 17 September 2016 - 09:12 PM

Hello Folks,

 

Just wondering if anyone has tried this, I am about to............

 

Any suggestions or advice?



#2 Crazy Cat

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Posted 23 September 2016 - 05:08 AM

Strontium Perchlorate: http://www.sciencema...ead.php?tid=143
The Chlorates and Perchlorates. http://www.oxidizing...e/chlorate.html

Name: Strontium Perchlorate. http://www.endmemo.c...nd/srclo4_2.php
Formula: Sr(ClO4)2
Molar Mass: 286.5212

Example Reactions:
• SrCO3 + 2HClO4 = Sr(ClO4)2 + CO2 + H2O
• 2HClO4 + Sr(HCO3)2 = 2CO2 + 2H2O + Sr(ClO4)2

 
Strontium chlorate: Strontium chlorate is created by warming a solution of strontium hydroxide, and adding chlorine to it, which subsequent crystallization. Chlorine has no action on dry Sr(OH)2, but it converts the hydrate (Sr(OH)2·8H2O) into the chloride and chlorate, with a small quantity of strontium hypochlorite also being produced.[2] https://en.wikipedia...ontium_chlorate

Strontium chlorate to Strontium Perchlorate. Optimization of the process parameters for an electrochemical preparation of strontium perchlorate.
https://link.springe...1814-009-0224-5 Full Article: http://www.oxidizing...e/stro_perk.pdf

The electrochemical preparation of strontium perchlorate, Sr(ClO4)2, from strontium chlorate employing platinum anode and a rotating stainless steel cathode is described. The effect of electrolyte concentration, current density, pH and temperature of the electrolyte and cathode rotation on current efficiency for the preparation of strontium perchlorate was studied. A maximum current efficiency of 42% was achieved corresponding to an energy consumption of 6.1 kWh. kg−1.
 

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. ― Albert Einstein ― Insanity is doing the same thing, over and over again, but expecting different results.

 

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#3 Rob.L.

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Posted 24 September 2016 - 09:25 PM

 
 

 

Strontium Perchlorate: http://www.sciencema...ead.php?tid=143
The Chlorates and Perchlorates. http://www.oxidizing...e/chlorate.html

Name: Strontium Perchlorate. http://www.endmemo.c...nd/srclo4_2.php
Formula: Sr(ClO4)2
Molar Mass: 286.5212

Example Reactions:
• SrCO3 + 2HClO4 = Sr(ClO4)2 + CO2 + H2O
• 2HClO4 + Sr(HCO3)2 = 2CO2 + 2H2O + Sr(ClO4)2

 
Strontium chlorate: Strontium chlorate is created by warming a solution of strontium hydroxide, and adding chlorine to it, which subsequent crystallization. Chlorine has no action on dry Sr(OH)2, but it converts the hydrate (Sr(OH)2·8H2O) into the chloride and chlorate, with a small quantity of strontium hypochlorite also being produced.[2] https://en.wikipedia...ontium_chlorate

Strontium chlorate to Strontium Perchlorate. Optimization of the process parameters for an electrochemical preparation of strontium perchlorate.
https://link.springe...1814-009-0224-5 Full Article: http://www.oxidizing...e/stro_perk.pdf

The electrochemical preparation of strontium perchlorate, Sr(ClO4)2, from strontium chlorate employing platinum anode and a rotating stainless steel cathode is described. The effect of electrolyte concentration, current density, pH and temperature of the electrolyte and cathode rotation on current efficiency for the preparation of strontium perchlorate was studied. A maximum current efficiency of 42% was achieved corresponding to an energy consumption of 6.1 kWh. kg−1.

Great, thanks for the info.

 

I will glean from this what I can.

 

I must admit, I had not thought of using the electrolysis method for the exotic per/chlorates. I wish I could do chemistry all the time..........eh!.......back in the real world!

 



#4 BlackCat

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Posted 18 February 2017 - 03:49 AM

Hello Rob, must admit that this one passed me by, did you try to make strontium perchlorate by whatever method  and, if so. how did it go?



#5 cooperman435

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Posted 18 February 2017 - 12:29 PM

While no chemist myself I'm sure there was a thread some time ago that stated or suggested it was or would be highly hydroscopic?

#6 samboradford

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Posted 20 February 2017 - 08:23 PM

It is massively hygroscopic, can't be dried effectively with normal dessicants and decomposes readily on heating to some noxious fumes. But if you get it "mostly" dry it makes a beautiful sharp red until it turns to liquid ;-)



#7 Crazy Cat

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Posted 26 February 2017 - 04:14 AM

Use a laboratory vacuum desiccator (https://en.wikipedia...wiki/Desiccator), or construct your own, using vacuum + Drierite (http://www.chem.ucla.edu/~bacher/Specialtopics/Drying%20Agents.html) to dry the Strontium Perchlorate.

Chemistry Of Pyrotechnics Basic Principles And Theory J Conkling (Marcel Dekker, 1985).pdf http://www.zuj.edu.jo/?wpdmdl=12212

Drying hygroscopic chemicals. https://parazite.nn....php/t-4717.html
 

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. ― Albert Einstein ― Insanity is doing the same thing, over and over again, but expecting different results.

 

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#8 samboradford

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Posted 28 February 2017 - 10:49 PM

I have a vacuum desiccator.

 

it turns to liquid within a few seconds under normal conditions.


Edited by samboradford, 28 February 2017 - 10:50 PM.


#9 Crazy Cat

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Posted 03 March 2017 - 03:59 AM

I have a vacuum desiccator.
 
it turns to liquid within a few seconds under normal conditions.


Page 320. Hydrous Perchlorate and Anhydrous Perchlorate.

https://archive.org/...stry_1_2_Brauer
https://ia600204.us....1__2_Brauer.pdf
 

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. ― Albert Einstein ― Insanity is doing the same thing, over and over again, but expecting different results.

 

Explosives-Danger-Sign-S-1812.gif





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