[tinapratiwi]

How we make a solution of Sodium Borohydride 20% ?
help me..

[sjb]

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.

[JGK]

http://en.wikipedia.org/wiki/Percentage_solution

[tinapratiwi]

How about reaction between water and Sodium Borohydride?
If that reaction is dangerous, what should I do?

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

[sjb]

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?

[tinapratiwi]

yes, in section 6 and section 10. And look at the wikipedia below...



http://en.wikipedia.org/wiki/Sodium_borohydride#Reactivity

[tinapratiwi]

HELP ME PLEASE..

[JGK]

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?

[baboom]

Sodium borohydride reacts slowly with alcohols and with water, as long as the pH is basic (high). A good solvent can be ether.

[tinapratiwi]

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. 

[baboom]

no problem