02-24-04 09:27
No 490759
I've obtained a small bottle of NaCNBH3, but it's quite wet. What would be the best way to remove this?
Which dessicant should I use? CaCl2 doesn't work (after two days in a vacc excicattor it didn't seemed any more dry) and H2SO4 is probably to risky (HCN)..
(Fragile ego)
02-24-04 22:32
No 490860
Putting it over some P2O5 should work.
(Hive Bee)
02-25-04 05:16
No 490931
This is taken from the MSDS of sodium cyanoborohydride.
10. Stability and Reactivity
Stability:
Water reactive. Very hygroscopic. May decompose on exposure to moist air or water.
Hazardous Decomposition Products:
Thermal combustion or decompositon may produce hydrogen cyanide, borane, oxides of carbon, nitrogen and boron; liberating flammable/explosive hydrogen gas.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Strong oxidizers, water, acids.
Conditions to Avoid:
Heat, flame, ignition sources, water, moist air, and incompatibles.
I would therefore suggest that your cyanoborohydride may well be dead. Be very careful about wasting any valuable material with it. Best to try and obtain a new sealed bottle before you experiment!
Fan of Shulgin
Peace, love and empathy