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For example, pharmaceuticals that pick up more than 5% by mass, between 40 and 90% relative humidity at 25 °C, are described as hygroscopic, while materials that pick up less than 1%, under the same conditions are regarded as non-hygroscopic.
It is a crystalline compound, but is hygroscopic to the point of being deliquescent. Owing to its very high acidity and good compatibility with organic solvents it has been employed as a catalyst in a wide range of chemical reactions. [1]
Category: Deliquescent materials. 17 languages. ... Pages in category "Deliquescent materials" The following 40 pages are in this category, out of 40 total.
This colorless deliquescent salt is one of the main sources of the thiocyanate anion. As such, it is used as a precursor for the synthesis of pharmaceuticals and other specialty chemicals. [2] Thiocyanate salts are typically prepared by the reaction of cyanide with elemental sulfur: 8 NaCN + S 8 → 8 NaSCN
[2] [3] This is the opposite use of a hygroscopic material where it is used as a desiccant used to draw moisture away. In pharmaceuticals and cosmetics, humectants can be used in topical dosage forms to increase the solubility of a chemical compound's active ingredients , increasing the active ingredients' ability to penetrate skin, or its ...
The anhydrous salt is hygroscopic and the hexahydrate is deliquescent. [citation needed] The dihydrate, CoCl 2 (H 2 O) 2, is a coordination polymer. Each Co center is coordinated to four doubly bridging chloride ligands. The octahedron is completed by a pair of mutually trans aquo ligands. [9]
If biodiesel is indeed hygroscopic-- meaning that it has a strong tendency to pull water molecules out of the atmosphere -- there are serious implications in terms of its use, storage, etc., which would need to be addressed in the article. Currently, the problem of "Water contamination" is stated to arise because "Some of the water present is ...
Potassium citrate (also known as tripotassium citrate) is a potassium salt of citric acid with the molecular formula K 3 C 6 H 5 O 7. It is a white, hygroscopic crystalline powder. It is odorless with a saline taste. It contains 38.28% potassium by mass. In the monohydrate form, it is highly hygroscopic and deliquescent.