How to Prepare: Alum 3 G Sulpho resorcinol 3g Boric acid 3 G isopropanol 100 g rosewater up to 300 g

The nature of the formed crystals indicate a crystallization of Aluin, which is insoluble in isopropanol.

Four solutions can be proposed:

1. Given the small amount of precipitation, it is perhaps easiest to place the prepared solution overnight in the refrigerator so that it does not dissolve well. In this way a maximum saturated solution is obtained.

2. on the other hand, the amount of alal can be reduced gradually until no precipitation is observed. The result is the same as Sub 1 but the amount of labor is greater.

3. Of course there is also the possibility to reduce the amount of isopropanol gradually until no more precipitation is found. Also asks a bit of search work.

4. the fourth possibility exists in the replacement of alum by Al-Hydroxychloride, a very widely used product in antiperspirant preparations. The concentration used is much higher (around 20%). This product is preferable to all chloride that reacts much more sourer and is best dissolved in anhydrous middle (absolute ethanol).

I personally opt for solution 1.