FUCHSIN DYE

[trish armstrong]

hi everyone,
Can anyone tell me what I can use as a replacement in an experiment for fuchsin dye, as I don't have any.
Any suggestions?
Trish.

[Labbie]

what do you use it for, please. That may help us a little with helping you???

[trish armstrong]

I have the feeling that it is to detect oil in foods? Thought of Sudan 111 but would like to use something safer.
Trish.

[Whspa]

I've just looked up fuchsin in CSIS and it is rated for Yr 11-12 - toxic if ingested, whereas SudanIII is rated for Yr 7-12 - moderately toxic.
If you are looking at oil/fat in foods I would have thought SudanIII to be the safer option.

I haven't found any reference to using fuchsin as an indicator for oil in foods?

Carol

[trish armstrong]

But at some stage in my thoughts/conversation it was mentioned to me that sudan 111 was carcinogenic? Is that true?
Trish

[Whspa]

I think it was determined that Sudan II is the problem, not Sudan III.

Carol

[trish armstrong]

thanks for your help, will use sudan111.unless teacher has other ideas.
trish.

[dime]

Here they use brown paper to detect oil in foods. I cut up squares of it. I guess that they mash the food in the mortar and put on the paper.

[gwen]

Carbol Fuchsin is a stain for microbiology. Acid fast organisms stain bright red.

We still use brown paper for testing for fat in foods. Just rub the food on the paper and fat will make it translucent.

[fibreweb]

We also use the brown paper to test for fats/oils.

I don't like them using Sudan III I have found it very difficult ( read almost impossible) to clean it out of test tubes. It won't come off in water. That is apart from the suspected carcinogenic properties.

Wendy

[noona]

I'm with you Wendy too messy I also use brown paper easy to get rid of
Noona