How to make HCL 4% solution (MMS activation) - Solution MUST be 4%

HCL from a supermarket? Please describe the product. Links?

mmsinfo.org/infosheets/measuring_the_strength_of_CD_CDS_CDH.pdf

hydrogen chloride concentration 23% translated

"hydrogen chloride concentration 23% translated"

You found a product with that description in a supermarket? What is the brand name and product you found?

Yes, from Europe.

Interesting. Could you take photos of the product so we can read what it says? Probably not in English? Google Translate works.

Check this :

Brand Name : Mieuxa
www.notilia.com/files/1455634453_fiche_compo.pdf

www.carrefour.fr/media/1500x1500/Photosite/BAZAR/BRICOLAGE/3256630030116_PHOTOSITE_20140327_204646_7.jpg?placeholder=1

Can we also measure ppm with a TDS meter ?

It appears to be a soap or detergent product that contains 23% HCL. If there are other ingredients other than HCL, I would not use it for making MMS1 or CDH. Maybe for making CDS.

You might be able to outgas the HCL into distilled water in a closed container with two smaller containers for the HCL and distilled water. But, there is not a way to measure the HCL concentration.

No, you can't measure CLO2 ppm with a TDS meter. You need a photometer designed to measure CLO2 concentration. Plus reagents.

There is no detergent. The ingredients are water + HCl
It's made by Nimes soap company, it's the name of the manufacturer.

Only with strips test to measure CLO2

Hmmm, not a soap. If the product is only HCL and water, then you should be able to use it by diluting it down to 4% HCL.

You can use CLO2 high range test strips to measure CLO2 concentration (ppm). They can give an approximate answer.

How do you store HCL 4% and for how long time for a safe use ?