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Isopropyl alcohol (IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable, organic compound with a pungent alcoholic odor. [9]Isopropyl alcohol, an organic polar molecule, is miscible in water, ethanol, and chloroform, demonstrating its ability to dissolve a wide range of substances including ethyl cellulose, polyvinyl butyral, oils, alkaloids, and natural ...
The first hydration shell of a sodium ion dissolved in water. DNA is typically separated from other cell constituents in a two-phase solution of phenol and water. Due to its highly charged phosphate backbone DNA is polar and will concentrate in the water phase while lipids and proteins will concentrate in the phenol phase.
Phase behavior Triple point: 184.9 K (−88.2 °C), ? Pa Critical point: 508.7 K (235.6 °C), 5370 kPa Std enthalpy change of fusion, Δ fus H o: 5.28 kJ/mol Std entropy change
Salting out is typically used to precipitate large biomolecules, such as proteins or DNA. [2] Because the salt concentration needed for a given protein to precipitate out of the solution differs from protein to protein, a specific salt concentration can be used to precipitate a target protein. This process is also used to concentrate dilute ...
These solutions are primarily composed of either isopropyl alcohol (isopropanol) or ethanol, with isopropyl alcohol being the more widely available formulation. Rubbing alcohol is rendered undrinkable by the addition of bitterants or other denaturants. In the British Pharmacopoeia, the equivalent product is called surgical spirit.
A specially denatured alcohol (SDA) is one of many types of denatured alcohol specified under the United States Title 27 of the Code of Federal Regulations Section 21.151. [11] A specially denatured alcohol is a combination of ethanol and another chemical substance, e.g., ethyl acetate in SDA 29, 35, and 35A , added to render the mixture ...