Sciencemadness Discussion Board

Discoloration of HDPE containers from solid reagents?

Sidmadra - 16-6-2018 at 15:55

I've got a large collection of reagents and I've noticed a pattern over time. I have a handful of solid Alkyl Chloride type reagents and I notice they turn the opaque HDPE into a redish purplish color. I have an indolic (non reactive) compound as well which does this to the container. In spite of this, there is never any reagent discoloration, only container discoloration. Container integrity doesn't seem to be harmed.

This only happens with my solid reagents, and I'm not sure why. I can't figure out what sort of reaction is occurring that would produce these color changes.

It hasn't posed any issues so far, but it's been intriguing for a while.

zed - 17-6-2018 at 12:44

What Indole, is producing a color reaction with HDPE?

What color?

[Edited on 17-6-2018 by zed]