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George F Edick edickg at rpi.edu
Tue Jun 16 08:14:17 EST 1998


I checked the Merck Index (9th ed, p656) which indicates solubility in
alcohol, ether, and acetone. If true, it should be possible to dissolve your
IBA in a small volume of one of these solvents, and then add to water or
buffer to dilute out the possible toxic effects of the solvent on the plant
tissue. I have dissolved a number of plant hormones in ethanol (sometimes
less than 1 ml) and then added that mixture to a large volume of water (>
1L) and the hormones stay in solution. Hope that helps. Good luck.


>Does anyone have any experience getting IBA into solution? We need a
>solution of 8000 ppm to root some softwood cuttings (yes, the
>recommendation *is* 8000 ppm). We tried dissolving a powder 99% IBA in 2.5
>M sodium hydroxide, but it appears very little has gone into solution.
>Thanks in advance...
>James. W. Perry, CEO/Campus Dean
>Professor, Department of Biological Sciences
>University of Wisconsin - Fox Valley
>1478 Midway Road, P.O. Box 8002
>Menasha, Wisconsin 54952-9002
>Office: 920.832.2610
>FAX: 920.832.2674
>jperry at uwc.edu
George Edick                                  E-mail:  edickg at rpi.edu
Department of Biology                         Phone:   518-276-8431
Rensselaer Polytechnic Institute              Fax:     518-276-2344
Troy, NY  12180

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