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Author Topic: Stability of NaBH[sub]4[/sub] in NaOH (aq) ?  (Read 1933 times)

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El_Zorro

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Stability of NaBH[sub]4[/sub] in NaOH (aq) ?
« on: September 29, 2002, 11:44:00 PM »
How long can a stock solution of NaBH4 and NaOH sit at RT before the NaBH4 decomposes?
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PrimoPyro

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Depends. What is the solvent?
« Reply #1 on: September 29, 2002, 11:45:00 PM »
Is water the solvent?
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El_Zorro

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Si, senor, water is the solvent.
« Reply #2 on: September 29, 2002, 11:56:00 PM »
Si, senor, water is the solvent.
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terbium

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Depends on pH.
« Reply #3 on: September 30, 2002, 12:05:00 AM »
The rate of decomposition depends on the pH but if the solution is strongly basic it can be quite stable. Basic aqueous NaBH4 solutions are sold comercially.
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Rhodium

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Post deleted by Rhodium
« Reply #4 on: September 30, 2002, 12:07:00 AM »
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El_Zorro

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So about a 3M NaOH solution would keep it stable ...
« Reply #5 on: September 30, 2002, 02:58:00 AM »
So about a 3M NaOH solution would keep it stable indefinately, or close to it?

Rhod- are you sure that link is correct?  I don't see how whether or not scottydog wears a rubber or not can be helpful in storing NaBH4. 8)
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Rhodium

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*hrm* :-o - anyway, I ment to link to another ...
« Reply #6 on: September 30, 2002, 03:07:00 AM »
*hrm* :-[  - anyway, I ment to link to another post which said that NaBH4 in aqueous NaOH is sold commercially...
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El_Zorro

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That's cool, I've been wondering whether or not ...
« Reply #7 on: September 30, 2002, 03:20:00 AM »
That's cool, I've been wondering whether or not Scotty wraps his weiner. ;)
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