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Phenylalanine (symbol Phe or F) [3] is an essential α-amino acid with the formula C 9 H 11 NO 2.It can be viewed as a benzyl group substituted for the methyl group of alanine, or a phenyl group in place of a terminal hydrogen of alanine.
Liquid properties. Gas properties. Hazard properties ... data relate to Standard temperature and pressure. ... (L-phenylalanine) This page was last edited on 12 ...
≳100000 [88] in practice, phonon scattering at solid-liquid interface is main barrier to heat transfer. 2.2 Liquid helium in its superfluid state below 2.2 K House: American 2016 Wood Product Blow-in, Attic Insulation 0.0440 − 0.0448 [89] FIBERGLAS Blow-in, Attic Insulation 0.0474 − 0.0531 [90] PINK FIBERGLAS Flexible Insulation 0.0336 ...
It is a colourless liquid with a pleasant floral odor. It occurs widely in nature, being found in a variety of essential oils. It is slightly soluble in water (2 ml per 100 ml of H 2 O), but miscible with most organic solvents. The molecule of phenethyl alcohol consists of a phenethyl group (C 6 H 5 CH 2 CH 2 −) attached to a hydroxyl group ...
“A mixed drink with two measured shots of hard alcohol might come in one glass but is treated by the body as two standard drinks,” he said. “Same with a large glass of wine — that will ...
It is a colourless liquid at room temperature that has a fishy odor, and is soluble in water, ethanol and ether. [10] Its density is 0.964 g/ml and its boiling point is 195 °C. [ 10 ] Upon exposure to air, it combines with carbon dioxide to form a solid carbonate salt . [ 20 ]
Also, capsules that contain liquid or oil may deteriorate more quickly than those that don’t. Is it safe to take expired vitamins? Taking expired vitamins is generally considered safe—but ...
The stability when dissolved in water depends markedly on pH. At room temperature, it is most stable at pH 4.3, where its half-life is nearly 300 days. At pH 7, however, its half-life is only a few days. Most soft-drinks have a pH between 3 and 5, where aspartame is reasonably stable.