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Ab (Toronto, Ontario) on 05/02/2009

Can anyone tell me how to make a 0.1% solution from 2.303% (aquatic) solution methylene blue from a pet store?

Thanks,
Ab

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Replied By Connie (Manitowoc, Wisconsin) on 08/10/2009

To quote Ted: "When you do buy methylene blue, the concentration may sometimes be sold as 1%, in which case you may need to dilute this to 0.1% concentration. So if a 100 cc of 1% methylene blue is bought from a local aquarium shops, I may have to add 900 cc of water (which totals) 1000 cc or 1 liter at 0.1% concentration." - end of quotation

 

So if you had a 2.303% solution you would use just under 50cc of 2.303% methylene blue and 900cc of water. Does that sound right?

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Replied By Sarah (Los Angeles, Ca) on 12/03/2009

wow- this gets sooo confusing. OK- so I have the littel bottle of Meth Blue from science lab website... I am trying to convert the measurements here: If I have 100 cc, that equals 3 and 1/2 ozs., and then to mix the 1:9 ratio, I mix that 3 and 1/2 ozs. with a liter (900 ccs of water?) thanks... am trying not to poison myself....
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Replied By Pankaj (India) on 08/04/2014

i bought MB from local aquarium shop but theres no info written on it about the %. also on the cover it says for aquarium use only not medical use... so I am m confused. should I use it or not. is it safe to take 1 drop with a glass of water?
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Replied By Bill (San Fernando, Philippines) on 08/05/2014

Hi Pankaj...I also use Methylene Blue bought from an aquarium shop. This also has no spec showing the percentage MB in this solution. But, generally, all Methylene Blue sold from aquariums is at 1% strength.

So what I did was just to assume that it was 1% solution.

The way I now take Methylene Blue with water is like this:

Say that I want to take 5 drops of 0.1% MB solution.

For five drops of 0.1% MB I first add 1 drop of 1% MB to a glass of water. This is equivalent to 10 drops of 0.1% MB.

Then I pour half the water out of the glass.

So you are now left with 1/2 drop 1% MB or 5 drops of 0.1% MB in solution which is your dose.

Usually, I take about 10 to 15 drops whenever needed. Always add or supplement at least 1000 mgs of Vitamin C with the methylene blue solution -- the vitamin c stops your eyes and urine turning blue. MB is a harmless stain that is also used in science to identify carbohydrates by turning blue.

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