## 21377Re: Specific Gravity

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• Aug 11, 2006
Think you might be wrong here Harry, it is my understanding that 800ml
of water added to 200ml of ethanol would have a volume of less than
1000ml and hence would be slightly more dense than your calculations show.

--- In new_distillers@yahoogroups.com, "Harry" <gnikomson2000@...> wrote:
>
> --- In new_distillers@yahoogroups.com, "Peter Davis" <davis668@>
> wrote:
> >
> > Can anybody give me the SG of a 20% alc. water mix??
> > Ditto for 40%
>
>
>
> Yup.
> 20% = 960 SG
> 40% = 920 SG
>
> Easy to work out.
> 1 litre water = 1 kg = 1,000g = 1,000 degrees of the hydrometer.
> 1 litre alcohol = 800g = 800 degrees of the hydrometer.
>
> 20% alc = 200ml = 160g
> 80% water = 800ml = 800g
> Total weight = 800 + 160 = 960g = 960 degrees hydrometer.
>
> If you're trying to use a beer/wine hydrometer then you're out of
> luck. Their readable scale is out of range (they're not long
> enough). Buy a spirit hydrometer (alcoholometer).
>
>
> Slainte!
> regards Harry
>
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