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Author: Subject: silver chemistry
bismuthate
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[*] posted on 29-9-2013 at 07:52


anything you think i should synthesise? (citrate aluminate asprinate etc)



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blogfast25
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[*] posted on 29-9-2013 at 07:58


Quote: Originally posted by bismuthate  
it worked i have silver borate!:D


Hmmm... for your credibility it helps if you describe concisely what you actually did and what you observed. This is a science forum: we're naturally sceptical. Others could be interested in preparing silver borate too, and they'll want as much information as possible with regards to your experiments.




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bismuthate
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[*] posted on 29-9-2013 at 08:13


ok
so i took a small amount of very fine silver borate powder (about 0.2 grams) and placed it in a 100ml flask then i added three drops of HCl and imediatly, i was suprised haw fast, the brown powder turned into white powder (there was slightly more white powder) that easily floated about in the water.
sorry about not explaining before, i know that you have reason to be sceptical because thats part of science plus i'm new here.




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[*] posted on 29-9-2013 at 08:32


The preparation of silver and copper borate by precipitation is described also in the patent application US2725857. It does not define the products and their hydration states, but gives their boron analysis.
Quote: Originally posted by bismuthate  
ok
so i took a small amount of very fine silver borate powder (about 0.2 grams) and placed it in a 100ml flask then i added three drops of HCl and imediatly, i was suprised haw fast, the brown powder turned into white powder (there was slightly more white powder) that easily floated about in the water.

And that made you exclaim: "it worked i have silver borate!:D"?

First of all, like blogfast said: This is a science forum. If you don't like the scientific method, at least do as a favour and don't share the sentiment with us. Some of us who respect and live of science, can get offended easily.
Secondly, any conclusion is only as solid as the evidence it is based upon. You got no experimental evidence, you don't even cite a reference, all you got is an indication. You don't even bother providing the experimental for the experiments you talk about, which means that even if you had any evidence, the evidence would not be evidencing anything. So behave in accordance to what you have. Describe the exact experimentals and limit the conclusions to whatever evidence you have.

And start using the Latin alphabet properly already. It's irritating!




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bismuthate
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[*] posted on 29-9-2013 at 08:46


I'm very sorry if this has offended you I planned to post a more detailed explanation later as I am currently pressed for time. I will refrain from making quick posts in the future i will probably have another post out once I have more time and make more (supposably) silver borate I will perform a more conclusive test. Please accept my apologies. Also i was unable to find the patent you mentioned. Sorry.



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bismuthate
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[*] posted on 29-9-2013 at 15:12


http://books.google.co.uk/books?id=P_MVjTFh16YC&pg=PA625...
This link that i got from Sonogasira explains the production of silver borate.
Here is my personal method that worked best for me:
You will need: 2 100ml beakers or flasks, 1g of AgNO3, 2g of borax, filter paper, filter
Steps:
Step 1: take 3g of borax. Place it in a 100ml beaker and dissolve it in 40ml of water.
Step 2: take 1.5g of silver nitrate. Put it in a 100ml beaker and dissolve it in 25ml of water.
Step 3: pour the borax into the silver nitrate.
Step 4: filter the solution.
Step 5: place the filtrand in a container of your choice. This is (indicated to be) silver borate
(I plan to verify that this is in fact silver borate this week)




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AndersHoveland
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[*] posted on 29-9-2013 at 19:51


There is this very inexplicable reaction:
http://www.sciencemadness.org/talk/viewthread.php?tid=23394

Basically, this higher oxide (I,III) of silver seems to form a soluble complex with dilute nitric acid forming a strange dark brown solution.
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bismuthate
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[*] posted on 30-9-2013 at 03:32


woah. maybe I'll do that myself. That's realy amazing. ( wiki says that it is atacked by acids but i didn't expect this).
could we mix it with other acids?




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[*] posted on 30-9-2013 at 03:47


Yes silver manganate exist. The attached file is a crystallographic study on Ag2MnO4. Unfortunately, only the abstract is in english the rest is in german (if someone can help you with translation).

Dany.

Attachment: Crystal growth and structure of silver manganate(VI).pdf (362kB)
This file has been downloaded 287 times

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[*] posted on 30-9-2013 at 03:53


as of now i cannot open the attachment, but thank you for answering my question. i will make an attempt to sythesise it with the logical route of K2MnO4+AgNO3==> 2KNO3+Ag2MnO4. (plus i get KNO3 whch is nice)



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sonogashira
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[*] posted on 30-9-2013 at 10:10


It says:
Add metallic silver to a saturated aqueous solution of AgMnO4 (room temperature) - after 10 hours crude Ag2MnO4 crystals have deposited upon the surface.

[Edited on 30-9-2013 by sonogashira]
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bismuthate
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[*] posted on 30-9-2013 at 11:18


that sounds suprisingly easy< i'll have to try it.



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[*] posted on 30-9-2013 at 13:56


could you also prepare it by the way i metioned or is that impossible?



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[*] posted on 1-10-2013 at 00:09


It would be easier to look it up for yourself, since you are the only one with an interest in making it! :D
Try google scholar, google books, archive.org - there are plenty of sources.
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