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Hygroscopic substances include cellulose fibers (such as cotton and paper), sugar, caramel, honey, glycerol, ethanol, wood, methanol, sulfuric acid, many fertilizer chemicals, many salts and a wide variety of other substances. [5] If a compound dissolves in water, then it is considered to be hydrophilic. [6]
[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 ...
In fact, when I pitted them against each other, liquid detergents were able to treat 10-30% more stains than laundry detergent sheets. But, at the end of the day, they still work — they'll clean ...
Cernan's suit was tested using the Spacecraft 9 life support system after the flight, when it was discovered that a small patch of the visor treated with an anti-fog solution remained clear of condensation. Later Gemini flights all included the anti-fog solution, for application prior to the space walk occurring.
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A desiccator is a heavy glass or plastic container, now somewhat antiquated, used in practical chemistry for drying or keeping small amounts of materials very dry. The material is placed on a shelf, and a drying agent or desiccant , such as dry silica gel or anhydrous sodium hydroxide , is placed below the shelf.
At least 50 injured as two trams collide in Strasbourg. News. CNN. Germany tows disabled Russian ‘shadow fleet’ tanker adrift in Baltic Sea. Sports. Sports. People.
Produced from 1930 to 1934, Hocking Cameo Depression glass features intricate scrollwork. The combination of soft, frosted designs and smooth, clear glass gives Cameo a sophisticated, ethereal ...