Sciencemadness Discussion Board

Preparation of dichromate from Cr(III) waste video

reactofurnace - 26-6-2019 at 14:24

Guys I finally finished editing the video of recycling Cr(III) waste back to dichromate.
I hope I made the video easy to follow. If anyone is interested in the process here's the link:
https://www.youtube.com/watch?v=9vdUs9BqW5Q


Thanks to all the suggestions on the forum for helping produce a method for this reaction. :)

[Edited on 26-6-2019 by reactofurnace]

teodor - 1-7-2019 at 03:13

The colour of your final solution suggests you've got a chromate-dichromate mix. I would check the pH of the solution before crystallization.

[Edited on 1-7-2019 by teodor]

Bedlasky - 1-7-2019 at 04:09

You wrote on start of the video that Cr(III) and Cr(IV) is carcinogenic. Cr(III) isn't carcinogenic and I suppose that Cr(IV) is mistake and you mean Cr(VI).

XeonTheMGPony - 1-7-2019 at 05:41

the music made it un watchable. I'd recommend longer sub titles with a bit more info and just let nature lab sounds fill the track.

or write a script, then narrate on a separate sound channel then overlay where appropriate.

unionised - 1-7-2019 at 12:31

About 43 seconds: buy a funnel.

Also, don't forget to wash the NaOH carefully out of the separating funnel (or it ****s the tap)

[Edited on 1-7-19 by unionised]