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Specialty Chemistry Forums => Other Sciences Question Forum => Topic started by: Helpneeded2020 on May 07, 2020, 10:31:45 PM

Title: Increase 63% sanitizer strength to 75-85%
Post by: Helpneeded2020 on May 07, 2020, 10:31:45 PM

Hi, got some isopropyl based hand sanitizer 63%. Would like to add 99% isopropyl to obtain final concentration of 75-85%. What is the formula or percentage of each? Thank you and stay clean.

Title: Re: Increase 63% sanitizer strength to 75-85%
Post by: chenbeier on May 08, 2020, 04:04:57 PM

Do you know the cross rule?

Title: Re: Increase 63% sanitizer strength to 75-85%
Post by: Helpneeded2020 on May 09, 2020, 02:29:51 PM

No, sorry. Bad at chemistry, hence the post here. Thank you.

Title: Re: Increase 63% sanitizer strength to 75-85%
Post by: chenbeier on May 09, 2020, 03:07:55 PM

Here it is not allowed to give final solutions.
Write Left Side the wochentags what you have in the middle what you want to have , make the differences then you get the weight parts.


https://primerdigital.com/tools/UniDilution.html

Title: Re: Increase 63% sanitizer strength to 75-85%
Post by: Helpneeded2020 on May 10, 2020, 02:43:21 PM

Thanks for the tips. I think I got it solved. Mixture calculator.

https://www.distilling-spirits.com/tools/calculations/mixing-alcohol/?alc_c_low=63&alc_c_high=99&alc_c_soll=81&alc_v_low=&alc_v_soll=1#result

50 ml of 63% + 50 ml of 99% = 100 ml of 81%

Not 100% sure, but the math looks about right

Use at your own risk. Too much lawsuits nowdays.

Title: Re: Increase 63% sanitizer strength to 75-85%
Post by: billnotgatez on May 10, 2020, 03:47:10 PM

@Helpneeded2020

Quote from: Helpneeded2020 on May 10, 2020, 02:43:21 PM

...
Not 100% sure, but the math looks about right
...

I am skeptical that you actually did the math to prove the calculator as correct.
 ;)