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Hydroquinone, also known as benzene-1,4-diol or quinol, is an aromatic organic compound that is a type of phenol, a derivative of benzene, having the chemical formula C 6 H 4 (OH) 2. It has two hydroxyl groups bonded to a benzene ring in a para position. It is a white granular solid. Substituted derivatives of this parent compound are also ...
C 6 H 4 (O)(OH) + e − → [C 6 H 4 O 2] 2− + H + Catechol is produced by a reversible two-electron, two-proton reduction of 1,2-benzoquinone (E 0 = +795 mV vs SHE; E m (at pH 7) = +380 mV vs SHE). [13] The redox series catecholate dianion, monoanionic semiquinonate, and benzoquinone are collectively called dioxolenes.
This glutamate in turn acts on mGluR 2/3 receptors, and at higher doses of acetylcysteine, mGluR 5. [ 57 ] [ 58 ] Acetylcysteine may have other biological functions in the brain, such as the modulation of dopamine release and the reduction in inflammatory cytokine formation possibly via inhibiting NF-κB and modulating cytokine synthesis. [ 55 ]
USP Tincture of Iodine is defined in the U.S. National Formulary (NF) as containing in each 100 mL, 1.8 to 2.2 grams of elemental iodine, and 2.1 to 2.6 grams of sodium iodide. Alcohol is 50 mL, and the balance is purified water. This "2% free iodine" solution has 0.08 mol/L of I 2, which provides about 1 mg of free iodine per 0.05 mL drop. The ...
The above equations (1, 2) run at a rate of 8.8×10 −9 and 4.4×10 −13, respectively. These calculations assumed the given rate constants and abundances of [ NH 3 ]/[ H 2 ] = 10 −5 , [ [H 3 ] + ]/[ H 2 ] = 2×10 −5 , [ HCO + ]/[ H 2 ] = 2×10 −9 , and total densities of n = 10 5 , typical of cold, dense, molecular clouds. [ 185 ]
This included $39 million in sector support through United States Agency for International Development (USAID) programs, largely channeled to local communities through private voluntary agencies; Peace Corps program budget of $2.2 million for more than 160 Volunteers serving in Mali; Self Help and the Democracy Funds of $170,500; and $650,000 ...
"1%" is the fourth solo single by Tomomi Itano (a Japanese idol, a member of AKB48). It was released in Japan on June 12, 2013, on the label You, Be Cool! It was released in Japan on June 12, 2013, on the label You, Be Cool!
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules (1 gigacalorie), [1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT.