# How can the density of water be maximised?

What is the maximum possible density of water at room temperature? The density of the water in the Dead Sea at 37°C is 1.24. Would it be possible to increase the density using salts we add to our food, or possibly by using different salts than are present in the sea?

• I believe in your first sentence is a temperature too much and a density missing. What do you mean with homesalts? And I do not understand what "... and bringing some from out?" means. Could you please take a look and make your question a little clearer. Thank you. – Martin - マーチン Jul 17 '14 at 10:01
• True. What I meant was what salts could I use to increase the density would the salt that we add in food work or wel have to add the diffetent salts present in the sea. – user7063 Jul 17 '14 at 11:55

Sodium polytungstate $\ce{Na6[H2W12O40]}$ is a relatively safe compound and allows densities up to 3.1 g/ml. $\ce{ZnCl2}$ allows densities up to ~ 1.9 g/ml, but has acidic solutions.