Tips for removing methyl blue stains?

[TechieO]

Hi, we've had a bottle of 1% methylene blue smash on the lab floor and up the (freshly-painted!) wall. Bleach soultion has faded it a bit on the floor, but made no difference on the wall. Any ideas? Please and thank you!

 

[chris everitt]

You could try - Making up a solution containing 1 part vinegar (acid) and 1 part saturated Vitamin C (reducing agent), then rub that into the stain.

 

[Mirage]

methylene blue stains

Hi everyone A student has dropped a bottle of methylene blue on a new lab floor :crying: any possible ideas for lifting the stain?

community.preproom.org

 

[TechieO]

methylene blue stains

Hi everyone A student has dropped a bottle of methylene blue on a new lab floor :crying: any possible ideas for lifting the stain?

community.preproom.org

Thank you! I thought this had come up before, but I couldn't find anything with a quick search.

 

[TechieO]

You could try - Making up a solution containing 1 part vinegar (acid) and 1 part saturated Vitamin C (reducing agent), then rub that into the stain.

Thank you