Question: Making IBA Solution (Indole-3-butyric acid)

"Since IBA is not soluble in water, it is typically dissolved in 75% or purer alcohol for use in plant rooting, making a solution of between 10,000 and 50,000 ppm. This alcohol solution is then diluted with distilled water to the desired concentration. IBA is also available as a salt, which is soluble in water. The solution should be kept in a cool, dark place for best results."

How do you do the math to achieve that specific PPM?

https://en.wikipedia.org/wiki/Indole-3-butyric_acid

what raw material are you starting with?

Avenger said:

what raw material are you starting with?

Click to expand...

98% pure IBA powder

10,000 ppm or better yet 10,000 miligrams of IBA per liter.

Starting material is 98 percent pure IBA, that is 98 parts per hundred, or better yet 980 miligrams IBA per gram.

10,000/980=10.2

dissolve 10.2 grams 98% pure IBA into one liter final volume >75% alcohol to achieve a solution with 10,000ppm IBA

Dilute this (10k ppm)concentrated alcohol solution into water to make the desired working solution rooting hormone.