My question comes from on-line advice on how to make your own hand sanitizer with ⅔ c of 91% alcohol and ⅓ c aloe gel. I'm starting with 70% alcohol and can't figure out what proportion of alcohol to aloe would still keep the concentration of alcohol above 60%. I read the formula v1 x c1=v2 x c2 but I'm not sure I chose the right variables. I used 240ml to approximate a cup. If the final liquid is (240ml x .60), then you'd want to find how much 70% solution to use, so (v2 x .70)? Result being 205 ml of 70% alcohol and 35ml of aloe? Is this right? Thanks so much.
Please check answer on concentration and dilution of solution (not sure which forum?)
- Thread starter Kate2001
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To check your answer:
Total volume of fluid = 240
Volume of Alcohol needed= 240*.6 = 144
volume of alcohol added = 205 *0.7 = ????
I'm sorry, Jomo. I didn't find it.
Steven G
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My comment wasn't really for you. I will try and find that post and give you the link.
Steven G
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Hand Sanitiser Ratio problem
Hi, I am trying to make some Hand Sanitiser at home. The ingredients I am using are as follows: 70% Rubbing Alcohol. Glycerin Alo Vera Gel. If the level of alcohol drops below 60% then the Hand Sanitiser won't kill germs. I need to add the Glycerin and the Alo Vera gel (to make it less runny...
www.freemathhelp.com
flawless101
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It was me who asked this question on another post.
The reply I got on my post made sense, the reply on here has completely confused me
