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

If you are going to make it yourself please be very careful.

HCl at strength prior to dilution can cause tissue damage, permanent blindness, and scarring.
It also emits some pretty dank and corrosive fumes.
Take precautions. Use gloves and eye protection. Make sure there are no bases in the area.

You would not believe the amount of stored energy you are dealing with.
One drop of 35% HCl on one flake of sodium chlorite will produce a sound like a gunshot, generate heat, and spatter for a long way.
I know this because I did it in a controlled, contained area. It cracked my thick glass

To reinforce what Matthew said, ....., Do not try to use anything stronger than 4% in MMS. The reaction with MMS will get stronger if the acid is too strong.
Think vinegar and baking soda...... you can get too much gas too quickly, and spatter can occur.

Citric Acid is a weak acid, and HCl is a strong acid, and you can not be cavalier in manner you handle it at strength.
You can fall in a vat of citric acid, and go take a shower, and maybe sting and itch a bit.
35% HCl will begin to digest your flesh.

I'm not trying to scare everyone to death, but I think this needs to be said.

All this being said.... at 4% there is no danger of splatter, or burns. I'm talking about the 25% to 38% available in bulk.

"Why is acid always added to water, and not the reverse?"

antoine.frostburg.edu/chem/senese/101/safety/faq/always-add-acid.shtml

"A large amount of heat is released when strong acids are mixed with water. Adding more acid releases more heat. If you add water to acid, you form an extremely concentrated solution of acid initially. So much heat is released that the solution may boil very violently, splashing concentrated acid out of the container! If you add acid to water, the solution that forms is very dilute and the small amount of heat released is not enough to vaporize and spatter it. So, Always Add Acid to water, and never the reverse."

Author: Fred Senese This email address is being protected from spambots. You need JavaScript enabled to view it."

I bought MMS 1 and MMS 2 along with the cirtic acid. The MMS 1 says it contains distilled water and 22.4% sodium chlorite (from 28% salts). I bought a quart. After reading this post now I have no idea what I have. I am glad I have not tried to mix it yet. What % do I have?

I've read your warnings and others as well when working with HCL and do take them seriously. I've been researching HCL online and I've seen concentrations ranging from 25-35%. If I purchase a product does it need to state that it is "food grade?" What is the best concentration to purchase?

Also, I'm not a technical person, could you tell me how to reach a 10% solution in very simple terms?

Thank you,
Christine

Not up yet....
Probably by end of week.

I'm busy getting stuff ready for this seminar, and have some made.
You can call or email if you need it.