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How to formulate tetrasodium EDTA and etidronate
Hi everyone am new here and into soap making.i would like to formulate with this
Palm oil
Coconut oil
Water
Sodium chloride
Titanium dioxide
Tetrasodium etidronate
Sodium citrate
Tetrasodium EDTAI have disodium EDTA and sodium hydroxide,its difficult to get tetrasodium EDTA and etidronate in my country. How can I use disodium and NaOH to formulate tetrasodium EDTA and what can I use for etidronate.
And in my country we have more of hard water than soft water, what measurement of the additive can i use for this formular in a bathing soap. Thank you -
5 Replies
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@Joyngo What kind of soap are you trying to make?
Heather@Vibrantlycosmeticsspa@gmail.com -
A bathing soap
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@Chemistrygirl a bathing soap (toilet soap)
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You can convert Disodium into Tetrasodium EDTA yourself
If I’m not mistaken,
for every 372.24 g Disodium EDTA
https://www.sigmaaldrich.com/catalog/product/usp/1233009?lang=en®ion=USadd 2 moles Sodium hydroxide = 80.0 g
https://www.sigmaaldrich.com/catalog/product/sigald/s8045?lang=en®ion=USyou’d get
380.17g Tetrasodium EDTA plus extra water from the reaction
https://www.sigmaaldrich.com/catalog/product/sial/03701?lang=en®ion=USAs for etidronate
try a local pharmaceutical ingredients suppliers
or you’ll need to import it yourself. -
Yes I’m aware that it’s soap. What Iam wondering is why do you need it in your formulae? Are you doing Hot or Cold process? You can make a bar with just oils and butters, with your lye. Herbs and extracts sound great for marketing buzz, but are debatable as to their efficacy after soponification.
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