It is an unstable mineral which dehydrates in dry air and decomposes in water. Kernite is soluble in cold water and alters to tincalconite when it dehydrates. When gypsum dehydrates severely, anhydrite is formed. Hydrochloric acid dehydrates pentoses (sugars containing five carbon atoms) to produce furfural. The reaction that forms eclogite dehydrates the slab, and hydrates the mantle wedge above. It dehydrates the vitreous humor and, therefore, lowers the intraocular pressure. In such cases, SO dehydrates these carbohydrates. As the leaf dehydrates, the coronas will naturally decrease in variability and intensity. When crystallized from water, it forms a hexahydrate, but it dehydrates above room temperature. In addition, Ma'barot runs a drying plant that dehydrates a variety of foods. Laumontite easily dehydrates when stored in a low humidity environment. Upon distillation, it dehydrates to form acrylic acid. Fructose readily dehydrates to give hydroxymethylfurfural ("HMF"). No drinking water is available in the backcountry and the dry climate quickly dehydrates hikers. This usually dehydrates to give the unsaturated carbonyl compound.