Australia's Science Forum

Hi All,

Does anyone know how to make up Sudan IV (scarlet red)? I cant find a recipe,

thanks Lisa

Hi Lisa
I have just found a very old piece of paper with 'Preparation of stains' -
Sudan IV
5g Sudan IV
100 ml Ethanol 70%.
and that is all that it says - fairly straight forward. Good Luck.
PS I have never prepared it before.
Kim

Excellent

Thanks heaps Kim

Lisa

Hi!

"The Laboratory" pg 140 says
0.5g sudan III or IV
100ml 70% ethanol. Warm solution in a water bath until stain is dissolved. Filter.

CAUTION: Sudan III or IV is a suspected carcinogen.

This, I have made, and it works great but beware the Sudan stains terribly.

Hope this helps.
Lou P.

Hi all
Thought you may like to know that in the public school system in NSW, Sudan 111 and 1V are banned !!!!
Cheers
Mother

You bet me to it Mother, well done

Hello Lee & Sue,

In the Appendix D: Generic assessment advise for CSIS it does not say that Sudan III & IV is banned.

Where did you get the info that Sudan III & IV is banned in NSW public schools?


Thanks
Cin

Mother and I must have gone to the same sort of network meeting, sorry, it is due to be banned. I am sorry opps.

Phew, I have just made it up, and bought it, I am glad that we can still use it (for the mean time anyway), Is it because it may be a carcinogen, that it will be banned?. How do they let the schools know?
Cheers Lisa

If you log on to chem watch on a fairly regular base, you will see updates, they let you know that way. Or like Ammonium Nitrate they just take it off the market. They use to fax the schools, but Chem watch is the best place for updates on chemicals.

Where do you find these updates on chemwatch or is it the dept of ed chemwatch site that the updates appear?

Hi all
When I first started working in the science lab.7 years ago.My head teacher(who trained me) told me Sudan 111 and 1V was banned back then.Seems there are mixed messages coming through.Sometimes I feel the department overacts with some of the chemicals.My feeling is that -if all precautions are taken with the mixing process,there should be no problems. With Sudan, only a small amount is usually required anyway. Having said all that I still don't use it!!
Take care
Mother

Wow,I am really confused now, I only made up a small amount, maybe I will just sit on that and pretend I dont have anymore!!!!Most chemicals dont bother me to make up, but I dont want to use any that are banned or heading that way. Thanks everyone, cheers Lisa

Hi Lisa
I'd stay away from it if you can.
I've had a brain Tumor so I'm very precautious of alot of things.
I got interviewed by The Cancer Council and they asked me a series of questions of suspected things that cause it and one was have I ever used Hexamethylene Diamine and Cebecyl Chloride (which is used in making nylon polymers)which I used regularly when I worked at the School Of Textiles along time ago.
I have notified the Department and nothing has ever been done to ban it, so I am telling you this to proove that these type of things seem to take time to filter through.
I don't want to scare people but nobody should endure what I went through
Rhonda

Now you have really scared me. We use those chemicals regulary to make nylon in Yr 12 chem.
How are you now? Any tumor is a scary thing but brain tumor the worst. Wishing you all the best
Lada

Hi Rhonda,

Thanks for that I am definately staying away from it. I hope you are well now, I know how important it is to look after ourselves.

Blessings to you
Lisa