I have just purchased a small bottle of fluorescent test fluid.

**LINK**

https://www.ebay.co.uk/itm/60g-Green-Fluorescent-UV-Dye-Oil-Leak-Detection-Test-For-Car-A-C-Pipeline-Fuel/201985297748

I will be using this in some optical experiments, rather than for its intended purpose ; and I therefore need to know a little more about its specification.

Can anyone tell me, please, what Oil is used in such products, and how much it can reasonably be diluted.

My previouse experience with Fluoroscein is limited to sprinkling powder into underground streams. **LINK**

https://en.m.wikipedia.org/wiki/Fluorescein

.

Thanks

MichaelG.

Thanks, Brian … 'Minute amounts' sounds good.

So; do you think I could use 'most any oil with this fluid in an open vessel ?

… the light source is no problem, but the refrigerant gas isn't something I want to play with.

MichaelG.

.

1. Just seen your edit 

2. For info. I want a way of doing this sort of demo/test 'on the cheap'

http://meijitechno.com/maugc-uranium-glass-cube

Edited By Michael Gilligan on 02/11/2017 00:11:55

Edited By Michael Gilligan on 02/11/2017 00:36:49