Question cleaning my bad NaBH4

[chicaloca]

A few month ago company AOKS Hubei sell my a batch of very poor NaBH4... It is poorly soluble in water and cames in the form of a tiny cristaline powder, whereas real NaBH4 is like table salt and there is grump (Is there a way to clean this precursor to semething acceptable or did the extra work need for extract all alduterants will be worth the paine?

Thx
*$*

 

[G.Patton]

Does this substance react violently with water with bubbles and self-heating?

 

[chicaloca]

yes it's the case it also have a small unpleasant odor

 

[UWe9o12jkied91d]

That looks and sounds right to me
check melting point? maybe it's good

 

[G.Patton]

NaBH4 has 400 *C mp. It can be problem for him, I guess =)

 

[G.Patton]

Sci-Hub | An improved purification of NaBH4 from storage-induced impurities by ammonia assisted crystallization in diglyme. International Journal of Hydrogen Energy | 10.1016/j.ijhydene.2020.08.071

I think it's easier to buy a new one.

 

[UWe9o12jkied91d]

Is the smell kind of metallic? Sort of like it smells when you make sodium conc. sol. but not exactly