Q = How do I dissolve kinetin to make a stock solution?
A = CLEAPSS recipe states add 0.01 g kinetin in 10 ml of 70% ethanol.
SAPS say Kinetin is only sparingly soluble and stock solutions of >50ppm are not practicable. You should use warm water, or dissolve it first in a small quantity of ethanol before adding the necessary amount of water.
Solutions are best stored in a fridge.
Q = How do I dissolve kinetin if it won't dissolve in ethanol?
A = Other methods to dissolve Kinetin:
Dissolve in a small volume of dilute HCl (0.1 - 1M), heating slightly until dissolved. Then dilute to required volume with distilled water.
OR
Dissolve in a small volume of dilute NaOH (0.5 - 1M). Dilute to required volume with distilled water.
OR
Can use a small volume 1M KOH & dilute down to final volume.
Solutions are best stored in a fridge.
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