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  2. Ammonium iron(III) sulfate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_iron(III)_sulfate

    Ammonium iron(III) sulfate, NH 4 Fe(SO 4) 2 ·12 H 2 O, or NH 4 [Fe(H 2 O) 6](SO 4) 2 ·6 H 2 O, also known as ferric ammonium sulfate (FAS) or iron alum, is a double salt in the class of alums, which consists of compounds with the general formula AB(SO 4) 2 · 12 H 2 O. [2] It has the appearance of weakly violet, octahedrical crystals.

  3. Acid-fastness - Wikipedia

    en.wikipedia.org/wiki/Acid-fastness

    Mycobacterium tuberculosis (stained red) in tissue (blue).. Acid-fastness is a physical property of certain bacterial and eukaryotic cells, as well as some sub-cellular structures, specifically their resistance to decolorization by acids during laboratory staining procedures.

  4. Fetal alcohol spectrum disorder - Wikipedia

    en.wikipedia.org/wiki/Fetal_alcohol_spectrum...

    Fetal alcohol syndrome (FAS) [1] Partial fetal alcohol syndrome (pFAS) refers to individuals with a known, or highly suspected, history of prenatal alcohol exposure who have alcohol-related physical and neurodevelopmental deficits that do not meet the full criteria for FAS. [22] Alcohol-related neurodevelopmental disorder (ARND) [22] [1]

  5. Atomic absorption spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Atomic_absorption_spectroscopy

    The sample is typically dissolved in a suitable solvent (acids, water) to create a liquid solution. This ensures the analytes are present as free atoms, ready for absorption. For solid samples like ores or minerals, additional steps like grinding and digestion may be required to break down the matrix and liberate the analytes. Step 2 ...

  6. Is sparkling water just as hydrating as still? Dietitians ...

    www.aol.com/sparkling-water-just-hydrating-still...

    The healthiest bubbly water you can drink is plain, unsweetened, sparkling water or seltzer — just H2O plus CO2 — over those with sweeteners, flavorings, or other additives, says Zumpano.

  7. Girdler sulfide process - Wikipedia

    en.wikipedia.org/wiki/Girdler_sulfide_process

    At 30 °C, the equilibrium constant K = 2.33, while at 130 °C, K = 1.82. This difference is exploited for enriching deuterium in heavy water. [6]Hydrogen sulfide gas is circulated in a closed loop between the cold tower and the hot tower (although these can be separate towers, they can also be separate sections of one tower, with the cold section at the top).

  8. Fatty acid synthase - Wikipedia

    en.wikipedia.org/wiki/Fatty_acid_synthase

    n/a n/a Ensembl n/a n/a UniProt n a n/a RefSeq (mRNA) n/a n/a RefSeq (protein) n/a n/a Location (UCSC) n/a n/a PubMed search n/a n/a Wikidata View/Edit Human Fatty acid synthase (FAS) is an enzyme that in humans is encoded by the FASN gene. Fatty acid synthase is a multi-enzyme protein that catalyzes fatty acid synthesis. It is not a single enzyme but a whole enzymatic system composed of two ...

  9. Phase diagram - Wikipedia

    en.wikipedia.org/wiki/Phase_diagram

    Triple points mark conditions at which three different phases can coexist. For example, the water phase diagram has a triple point corresponding to the single temperature and pressure at which solid, liquid, and gaseous water can coexist in a stable equilibrium (273.16 K and a partial vapor pressure of 611.657 Pa).