A new madder experiment and an update on earlier madder soaps:
First, here’s a photo with two soaps discussed above and a new one in the middle.
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The soap on the left was made on June 20, so about 3 months ago. The second layer down is colored with madder colorant that was concentrated from an isopropyl alcohol and water infusion. It looks like all of the madder colors have faded quite a bit
. The original photo is
here. The bottom layer is rose clay. The way I colored the other layers is described above. The soap on the right was made on July 14th, so about 2 months ago. The original photo is in post #69. For that batch, I added the madder to half of the water and then added the lye to the same pitcher. I also made a batch of uncolored batter and mixed portions to get the color gradient. For this one, the pinks now look a bit brighter, or it could be the lighting. The middle soap is a new one I made this past weekend.
For the latest batch, I mixed household ammonia with madder root powder and let it sit for about two months. I shook the jar occasionally, let the powder fully settle and decanted the ammonia. With a little help from
@DeeAnna and her Soapy Stuff web resource on using ammonia to make soap, I used the madder “dyed” ammonia as a full water replacement in my recipe and adjusted my NaOH accordingly. I also used a new small 4-bar mold and you can see that I ended up with my first partial gel. The color shade is good, if a bit intense, so I expect that I can get a nice pink by using the ammonia “dye” as a split, independent of the masterbatched lye water. I still need to think about whether I should add the lye water to the oils first and then the ammonia, or the other way around. I definitely do not want to release a big cloud of ammonia gas! Given how noxious ammonia fumes are, I do not recommend this technique for beginners. I will update as the soap cures.