> > > Does anyone know an approximate density for liquid soap (i.e. palmolive dishwashing liquid)?
> >
> > Well, how approximate is okay?
> >
> > I just took a 2L bottle of "Jergens Skin Care Antibacterial Plus" liquid soap and stuck it on bathroom scale. It wasn't a full bottle; I estimate 350 mL has been removed from it. The bathroom scale read 5 lb.
> >
> > So that's 5 lb / 1.65 L (2L - 0.35 L). Since 1 lb = 0.45359237 kg, that's about 2.268 kg / 1.65 L, or about 1.37 kg/L (about a third more than the density of water).
>
> Shouldn't you subtract the weight of the bottle?
>
> Speed'of course if you are doing approximate it might not matter much'ball

It's a cheap plastic bottle. It doesn't weigh much.

Actually, I've got a nearly empty bottle of liquid soap around here...just a sec...

...Yeah. Our bathroom scale has a digital readout. When I stick the nearly-empty bottle on it, it just reads "000". So while the weight of the bottle may not be negligable, it's too small for me to measure with a bathroom scale!

-SB