Sciencemadness Discussion Board

CrCl2

lida - 20-5-2011 at 22:17

i need crcl2 for doing an experimental research, but its too expensive!!!!
about 103 euro per 10 gr
do you have any experiment about making CrCl2???
please suggest me the method
tnx ;)

[Edited on 21-5-2011 by lida]

hkparker - 20-5-2011 at 22:46

From wikipedia:
Quote:

CrCl2 is produced by reducing chromium(III) chloride with hydrogen at 500 °C:[1]
2 CrCl3 + H2 → 2 CrCl2 + 2 HCl
Small scale preparations can use LiAlH4, or related reagents, to reduce CrCl3
4 CrCl3 + LiAlH4 → 4 CrCl2 + LiCl + AlCl3 + 2 H2
Commonly, it is generated by reduction of CrCl3 with zinc.
2 CrCl3 + Zn → 2 CrCl2 + ZnCl2


Any of those sound accessible for you?