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MariaZ

Member
July 10, 2020 at 1:28 pm in reply to: Determining how much %w/w of 96,25% ethanol is needed for an 80% v/v solution

Can anyone help with this?
MariaZ

Member
June 25, 2020 at 9:43 am in reply to: Determining how much %w/w of 96,25% ethanol is needed for an 80% v/v solution

@chemicalmatt
Thank you for the link. I had seen this link, and it helped me a lot to understand the whole process. I also need help on understanding how the specific gravities are calculated because I have 96,25% ethanol instead of 95%. As ethanol is a controlled commodity in Greece, we need to be exact with how much we use. Can you send me the formulas based on which you found the amount of ethanol needed for the sanitizer? My supplier has given me the specific gravity of 96,25% ethanol to be 0,8053. How do you find how much of this to use in order to obtain a sanitizer with 80% v/v ethanol content? And how do you convert this to % w/w? Then I have to re-convert this to ethanol volume (anhydrous) as this is needed to be kept in our records for customs control.