Palladium, platinum, gold and mercury can be dissolved in aqua regia, a highly concentrated mixture of hydrochloric acid and nitric acid, but iridium and silver cannot.

Gold will not react with many acids, but it will dissolve in "aqua regia," a concentrated mixture of hydrochloric and nitric acids.

Pemmican a concentrated mixture of fat and protein and in some cases dried fruits were added.

First, benzene is nitrated using a concentrated mixture of nitric acid and sulfuric acid at 50 to 60 C, which gives nitrobenzene.

Brown and black, for example, are dark colors usually made of a concentrated mixture of dyes, and almost always look a bit different as they are washed thin.

Pemmican is a concentrated mixture of fat and protein used as a nutritious food.

The permeate is a concentrated mixture that must be diluted with additional air prior to entering the nitrox compressor.

The brew stews for 12 to 18 months, producing a concentrated mixture that is then placed in another well with still more salt and water.