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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: tinapratiwi on November 17, 2009, 08:30:57 PM

Title: SODIUM BOROHYDRIDE
Post by: tinapratiwi on November 17, 2009, 08:30:57 PM: How we make a solution of Sodium Borohydride 20% ?
help me.. ???
Title: Re: SODIUM BOROHYDRIDE
Post by: sjb on November 18, 2009, 02:46:42 AM: Just the same (more or less) as you'd make any 20% solution - do you mean w/w , w/v, ??? Note the reactivity of Borohydride too, so some solvents may not be a good idea.
Title: Re: SODIUM BOROHYDRIDE
Post by: JGK on November 18, 2009, 12:50:51 PM: http://en.wikipedia.org/wiki/Percentage_solution (http://en.wikipedia.org/wiki/Percentage_solution)
Title: Re: SODIUM BOROHYDRIDE
Post by: tinapratiwi on November 18, 2009, 09:03:09 PM: How about reaction between water and Sodium Borohydride?
If that reaction is dangerous, what should I do?

http://www.sciencelab.com/msdsList.php
Title: Re: SODIUM BOROHYDRIDE
Post by: sjb on November 19, 2009, 02:44:08 AM: Quote from: tinapratiwi on November 18, 2009, 09:03:09 PM
How about reaction between water and Sodium Borohydride?
If that reaction is dangerous, what should I do?

http://www.sciencelab.com/msdsList.php

What does the MSDS that you've linked to say in section 6?
Title: Re: SODIUM BOROHYDRIDE
Post by: tinapratiwi on November 19, 2009, 08:44:06 PM: yes, in section 6 and section 10. And look at the wikipedia below...

http://en.wikipedia.org/wiki/Sodium_borohydride#Reactivity
Title: Re: SODIUM BOROHYDRIDE
Post by: tinapratiwi on December 06, 2009, 11:45:58 PM: HELP ME PLEASE.. ???
Title: Re: SODIUM BOROHYDRIDE
Post by: JGK on December 07, 2009, 12:27:22 PM: Quote from: tinapratiwi on December 06, 2009, 11:45:58 PM
HELP ME PLEASE.. ???

What do you want us to do, pop round to your Lab and make it for you?

You asked how to make a % solution - we gave you the information;
You asked about reactivity (and supplied a MSDS) - we told you in which sections of the MSDS to look and provided additional information.

What more can we do for you?
Title: Re: SODIUM BOROHYDRIDE
Post by: baboom on December 07, 2009, 01:00:02 PM: Sodium borohydride reacts slowly with alcohols and with water, as long as the pH is basic (high). A good solvent can be ether.
Title: Re: SODIUM BOROHYDRIDE
Post by: tinapratiwi on December 15, 2009, 10:14:34 PM: to JGK : I want to know reaction between water and Sodium borohydride? If the reaction is very dangerous, please tell me.... but if the reaction doesn't dangerous, I can continue to make this solution. thx
to Baboom : thx for the answer. I understand now. ;D
Title: Re: SODIUM BOROHYDRIDE
Post by: baboom on December 23, 2009, 04:25:42 AM: no problem :D