Chemical Forums
Specialty Chemistry Forums => Other Sciences Question Forum => Topic started by: Helpneeded2020 on May 07, 2020, 10:31:45 PM
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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.
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Do you know the cross rule?
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No, sorry. Bad at chemistry, hence the post here. Thank you.
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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
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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.
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@Helpneeded2020
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Not 100% sure, but the math looks about right
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I am skeptical that you actually did the math to prove the calculator as correct.
;)