Paddywhacker
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Non-freeze solvent for phytohormones
Dimethylsulphoxide, or dimethyl sulfoxide, is a great solvent for concentrates of plant hormones because it is both nontoxic to plants and a good
solvent. It is annoying, however, at having a fairly high melting point, about 40 degrees.
Does anybody know how much ethanol I would have to add to keep it fluid in the fridge at zero degrees C?
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Paddywhacker
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not 40 degrees .... 18 degrees Celsius.
anyway, the answer is that about 22% ethanol is required to drop the melting point of DMSO to zero degrees.
Reference
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