5% HCL

I know this question has been raised before but I cannot seem to find the link I can purchase 5% HCL at a reasonable cost and would like to know if this would substitute for the 4% recommended Also if I were to dilute it what would be the amount of water I would need to add to 100ml acid at 5%

Thanks in advance

Hi Mikey
2 images/illustrations below on how to use the endemo calculator





Instead of 30% stock solution you will be using 5% stock solution. Fill in the amount (volume) of your stock solution (in ml) as well and calculate.

I get my 30% HCL at hardware stores. You want clear HCL. No added color. If in doubt ask for a datasheet. Should be HCL dissolved in water, nothing else.
Always add acid to water. Good luck.

Thanks for the link

So for 5% HCL in 100 ml the calculator gives me 125 ml @ 4% As there must be 5 ml of HCL included in the solution then I assume need to add 20 ml

Is this correct

Thanks

You will need to add 25 ml of distilled water to 100 ml of 5% HCL to get 125 ml of 4% HCL. Below is another example.