Hi everyone ?
Looking for appropriate way to control the PH in a container ?

 

Hi everyone ?
Looking for appropriate way to control the PH in a container ?

You either add acid or add base. Is there anything in the container that would mind a little HCl or NaOH? Too rich for your blood?
OK Try Vinegar (CH3COOH), and Baking Soda (NaHCO3).

 

You either add acid or add base. Is there anything in the container that would mind a little HCl or NaOH? Too rich for your blood?
OK Try Vinegar (CH3COOH), and Baking Soda (NaHCO3).

Have you got any ideas about the setup that can do such a thing ?

 

Have you got any ideas about the setup that can do such a thing ?

I suppose there are automated systems for mixing controlled amounts of solutions but they might be kinda pricey, especially for a one-off.
This one is six bills!!
https://www.mt.com/us/en/home/produ...MIipWwgqbD5gIVi4rICh0HPgbTEAQYAiABEgIuUvD_BwE

 

I suppose there are automated systems for mixing controlled amounts of solutions but they might be kinda pricey, especially for a one-off.
This one is six bills!!
https://www.mt.com/us/en/home/products/Laboratory_Analytics_Browse/Product_Family_Browse_titrators_main/easyplus-titration/easyplus-semi-automated-titrators/easyplus-titrator-easy-epm.html?SE=GOOGLE-Shopping&cmp=sea_03540127&Campaign=ANA-TI_EN_US_Shopping&Adgroup=Semi-automatic titrator&bookedkeyword=&matchtype=&adtext=381804153551&placement=&network=g&kclid=_k_EAIaIQobChMIipWwgqbD5gIVi4rICh0HPgbTEAQYAiABEgIuUvD_BwE_k_&gclid=EAIaIQobChMIipWwgqbD5gIVi4rICh0HPgbTEAQYAiABEgIuUvD_BwE

Actually , i want a setup that can be enrolled in a big system that has a part that controls the PH. so i want the method not the final product.

 

You have given no information about the project. I will presume it is a liquid. Correct me, if it is not.
1) What is the liquid composition ?
2) What is the temperature range?
3) How big is the container?
4) Is the material continuously mixed?
5) Do you have a pH meter? What type of probe?
6) Do you need to worry about contamination with other chemicals?
7) Can the material be sampled or must it be tested in the container?
8) What range of pH do you need?

 

Actually , i want a setup that can be enrolled in a big system that has a part that controls the PH. so i want the method not the final product.

I could do the engineering, but I'm a little busy at the moment. I'm persuaded that the technology exists, you just have to find it.

 

i want the method not the final product.

Off the top of my head... Stainless Steel mix tank with agitator and stilling well for pH probe. SS Holding tanks for acid and alkali w/ metering pumps. Charge and discharge pumps for mix tank, assorted SS piping. Last but not least a Distributed Control System with trained operators. Chemical and Process Control Engineers to design the system and put the Project Specification into documents. Piping and Structural designers to generate the construction drawings. Construction Contractors to build it out. Purchasing Dept. to order the materials and a Slew of Accountants to keep it on budget. Trained Instrument Techs to maintain the system. And a whole host of "others". Did I leave anything out???

 

You have a process (PH) and you want to control the process (Process Control) so you may want to start with a Process Controller and if you wish to get specific a Process Controller for PH. Something like this. You make no mention of agitation? Holding tank composition? Capacity?

Off the top of my head... Stainless Steel mix tank with agitator and stilling well for pH probe. SS Holding tanks for acid and alkali w/ metering pumps. Charge and discharge pumps for mix tank, assorted SS piping. Last but not least a Distributed Control System with trained operators. Chemical and Process Control Engineers to design the system and put the Project Specification into documents. Piping and Structural designers to generate the construction drawings. Construction Contractors to build it out. Purchasing Dept. to order the materials and a Slew of Accountants to keep it on budget. Trained Instrument Techs to maintain the system. And a whole host of "others". Did I leave anything out???

Those are a few of the things needing your consideration.

Ron

 

You don't really expect us to do all of that engineering for free -- do you?

 

How about this... Continuous or Batch processing?

 

I suppose you could do it on the cheap with a couple of burettes, a trained lab technician, and a batch of pH test strips. Of course his mom will have to mix the solutions that go into the burettes.

 

pH test strips

Ecstatic weekend ?