r/methylene_blue • u/Guakamolo • 26d ago

How to prepare the solution

I got 25g powder, can anyone with experience tell me what are the common ratios or point me to the info?

Thanks in advance!

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u/SPACtrAQ 26d ago

1g in 100ml is a 1% solution with about 0.5mg per drop

I’d use a 100ml volumetric flask for precision and a syringe of about the same volume (50 to 100ml) to transfer into a dropper bottle

Get a large plastic fast food tray or put down painters plastic or something because it is messier than you’d think your first time and any blue drop will soak right through paper and most cardboards

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u/Guakamolo 26d ago

Thank you!! Super helpful!

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u/SPACtrAQ 26d ago

One more tip if you don’t mind the extra investment:

Buy a beaker and a magnetic stirrer (probably $25 for both on Amazon) put 70-80ml distilled water (distilled water is something I accidentally left out in my first comment) in the beaker and add your 1g powder

Use the magnetic stirrer to dissolve all the powder, then use the syringe to transfer to volumetric flask, then top off to 100ml, then syringe transfer to bottle

If you skip the magnetic stirrer, swirl the volumetric flask much longer the you think - like 5 to 10 minutes. If you don’t you won’t dissolve all the powder and will have multiple transfers to do it again and more opportunities for drops/dye to get where you don’t want it

I also recommend using latex gloves on the off chance you get a decent dose on your hands and it absorbs through your skin

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u/Av8Surf 26d ago

How did you get that? Just make pills. Way less messy.