kazaa81
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Calcium gluconate preparation......
Hallo to all,
I'm searching for one or more methods to synth. calcium gluconate.
I've searched bu finded nothing.
Thanks for help! 
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HNO3
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For HF burns?
| Quote: | If the commercial gel product is not available, an emergency in-house version can be prepared for treatment of hydrofluoric acid burns on skin. This
homemade gel is composed of 3.5 grams of calcium gluconate powder mixed into 5 ounces of water-soluble lubricant such as K-Y Jelly or Surgilube.
Pre-made stock should be kept on-hand whenever HF is to be used. There is little time for deliberation and searching for the tubes. HF users may want
to run practice drills for possible HF incidents to guarantee that they can follow appropriate procedures quickly and automatically.
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I don't know the synth of hand.
[Edited on 1-6-05 by HNO3]
\"In the beginning, God...\" Wait a minute, God doesn\'t exist!!!!!!!!!! \"OK, in the beginning, ummm, hydrogen...\" Wait a minute, what about the
laws of thermodynamics? \"OK, in the beginning, ummm.....UMMMMM, what\'s left to choose from?
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kazaa81
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Thanks....
Thanks HNO3,
but this doesn't help me with synth. procedure!
Yes, for the next experiment I need to work with HF and, for this, I was searhing for an other experiment to do first: synthesis of calcium gluconate!
Thanks at all!
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chemoleo
Biochemicus Energeticus
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Kazaa, google is your man, comon! Literally took me 5 seconds to find the answer.
Gluconate is of course the salt of gluconic acid, which can be obtained by careful oxidation of glucose.
Ca-gluconate is barely soluble (about 3.3 g in 100), so it is easy to precipiate the acid with a calcium salt.
So you want to do the oxidation yourself?
One way is electrolysis of a glucose solution, see this patent.
It might also be a good idea to search the patent server yourself, with search terms such as this.
Never Stop to Begin, and Never Begin to Stop...
Tolerance is good. But not with the intolerant! (Wilhelm Busch)
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HNO3
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I don't know about where you live, but about a week ago I went to a tack and feed store and found 500ml of (IIRC) 28% calcium gluconate solution
for an unremeberable price(they say genioues are forgetful...). Maybe it could be purified or used as is.
\"In the beginning, God...\" Wait a minute, God doesn\'t exist!!!!!!!!!! \"OK, in the beginning, ummm, hydrogen...\" Wait a minute, what about the
laws of thermodynamics? \"OK, in the beginning, ummm.....UMMMMM, what\'s left to choose from?
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Eclectic
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You can read the full text of this patent in english:
http://v3.espacenet.com/origdoc?DB=EPODOC&IDX=GB365414&a...
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BASF
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i read in thieme´s "cd-roempp" lexicon ca-gluconate is quite explosive.....interesting.
On the other hand......why the hell?? its "just" a carboxylic acid-salt, no?
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rikkitikkitavi
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can you not use any soluble Ca-salt that will react with HF preciptating CaF2?
I wonder if the gluconate salt is explosive , or it is just prone to dust explosive like all organic dust? Ca-formate is not so prone to dust
explosions, but of course the more "organic" in nature of the compound , the easier. Ca-acetate and propionate f e x burns in open flame,and
hence a "sugarsalt" should be fairly flammable.
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BASF
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The thieme lexicon (1995 ed.) provides only very little info on the explosive behaviour other than displaying calcium gluconate with
"explosive"- warning sign as it would normally only when displaying azides or other real explosives....
[Edited on 14-2-2005 by BASF]
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ave369
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Calcium gluconate does not explode. If it would, Russian kids would know of that.
Smells like ammonia....
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