This is a very high concentration and in the body we use the milliosmole (i.e. one thousandth of an osmole). â¢ Osmolality is the number of osmoles of solute particles per unit weight of solvent and has units osmoles/kilogram. Again in the body we use milliosmoles.
Perrier, also from France, is quite low in sodium and has a moderate amount of calcium, but it doesnât provide a whole lot of magnesium. Hereâs a chart that shows the amount of various minerals in several common brands of mineral water.
The quinine in tonic water causes it to grow bright blue under a black light. Science Photo Library / Getty Images The bitter flavoring of tonic water is due to the presence of quinine, which glows blue-white when placed under a black light. You'll see the glow in both regular and diet tonic water.