v/v to w/w help, Ethanol to Purified Water

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Ossie1991
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Report Thread starter 7 years ago
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Hi there,

I am currently working at a chemical manufactoring company and I need a little help.

I am trying to work out how much L of Denatured Ethanol (DEB 100%) and Purified Water I need to make a 450L batch of Denatured Ethanol 70%.

I know I only need 70% v/v which is 315L of Ethanol

but (HOW) do I work out how much purified water I need.

((I also need the workings out))


If its any use for Denatured Ethanol (DEB 96%) of 333.89L we used 129.2L of purified water to make the same 450L batch.

Thank you.
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Borek
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Report 7 years ago
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Such calculations require using density tables and are rather tedious. I would use the concentration calculator. PM me if you want to try and I will explain how to use it.

Not clear to me if you need it to be 70% v/v or w/w and the calculations will be slightly different in each case.

Now everyone will think I registered a sockpuppet. Sigh.
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Ossie1991
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(Original post by Borek)
Such calculations require using density tables and are rather tedious. I would use the concentration calculator. PM me if you want to try and I will explain how to use it.

Not clear to me if you need it to be 70% v/v or w/w and the calculations will be slightly different in each case.

Now everyone will think I registered a sockpuppet. Sigh.
Thank you for your reply, I found out by our lead chemist it was 315l of ethanol to 149l of water to make 450l batch,

Watch out for more questions lol I sure I will have many lol

Thanks again
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