7
Ivory soap bars are supposed to be nearly pure soap. Soap is made by combining fat and lye. This is not true of ivory detergents or liquid soaps.
2.5
Dawn Ultra Concentrated Antibacterial Hand Soap and Dish Washing liquid has a pH of 9. Ivory Dish Soap from the same manufacturer has a pH of 7.4. Soap naturally has a high pH, but many commercial soaps have buffers to normalize the ph. This is how some soaps keep from burning eyes and making people break out in rashes. Industrial soaps use the same trick to keep from reacting with metals.
12-13
ivory hand soap liquid ingredients
7
Ivory soap bars are supposed to be nearly pure soap. Soap is made by combining fat and lye. This is not true of ivory detergents or liquid soaps.
2.5
Use a pH-paper.
Dawn Ultra Concentrated Antibacterial Hand Soap and Dish Washing liquid has a pH of 9. Ivory Dish Soap from the same manufacturer has a pH of 7.4. Soap naturally has a high pH, but many commercial soaps have buffers to normalize the ph. This is how some soaps keep from burning eyes and making people break out in rashes. Industrial soaps use the same trick to keep from reacting with metals.
12-13
The liquid soap has a pH above 7 (alkaline).
According to the MSDS sheet, Dial liquid anti-bacterial soap has a pH of 5.8-8.9
Since a perfectly neutral liquid such as distilled water has a pH of 7, a liquid with a pH of 7.1 is just very slightly alkaline. Perhaps it has a bit of soap in it.
Cussons morning fresh has a low ph of 4.5
Different soaps have different pH balances. In choosing the right soap for yourself, look for a soap with a pH balance from 4 to 7. Soaps with a pH balance of less than 3 or more than 8 can irritate your skin.