However, the reaction with sulfuric acid is poor, because barium sulfate is highly insoluble.

The red and yellow colors result from the accumulation of iron oxide (rust) which is highly insoluble in water.

Calcium oxalate is highly insoluble and contributes to kidney stones.

Cellulose fibrils are highly insoluble and inelastic and, because of their molecular configuration, have a tensile strength comparable to that of steel.

Burkholderia acidipaludis has the ability to solubilize highly insoluble phosphatic minerals.

TeO is highly insoluble in water and soluble in concentrated sulfuric acid.

Bismuth sulfide is a highly insoluble black salt, and the discoloration seen is temporary and harmless.

It is highly insoluble in sea water and is often the limiting nutrient for phytoplankton growth.

Silver halides are highly insoluble in aqueous solutions and are used in gravimetric analytical methods.

Unlike silver nitrite, silver iodide is highly insoluble in water and thus forms a solid.