Look here.
Try the lovely bath ingot-
You can't always make soap, can you? Play something new once in a while. Let's make some bath tablets. This looks very convenient to do!
Citric acid, baking soda, corn starch and grape seed oil, add a few drops of essential oil, gently mix and stir well, then press into a lovely soap mold, press hard and compact.
Demoulding after 3 hours (this is much easier than soap demoulding), isn't it cute?
Take one to take a bath, and wrap the rest with plastic wrap quickly. This thing absorbs moisture. If you don't wrap it up quickly, it will absorb moisture and deform.
When the bath ingot is thrown into the bathtub, many small bubbles hiss, then dissolve quickly, and also smell of essential oil and lemon. It's like throwing effervescent tablets into water. I took aspirin effervescent tablets when I had a fever last time, and it was almost the same as this when it dissolved!
When I was in the bathtub, I was still thinking about the chemical principle of bath ingot: baking soda is sodium bicarbonate, which reacts with citric acid in water to produce sodium citrate and bicarbonate, and then decomposes into water and carbon dioxide, so there are so many bubbles.
But the smell of lemon? Is it from citric acid or the lemon citronella essential oil I added? Suspicion ing