The IUPAC recommended pKa values for this equilibrium in aqueous solution at 25 °C are 8.99 ± 0.04 (I = 0), 8.83 ± 0.02 (I = 0.1 M NaClO4) and 9.00 ± 0.03 (I = 1.0 M NaClO4; I = ionic strength) . [9] Values for mixed solvents are available. Very strong bases, such as organolithium compounds, will deprotonate acetylacetone twice. The resulting dilithium species can then...

Molecular formula C19H24O2 may refer to:   Almestrone, a synthetic steroidal estrogen Boldione, an anabolic steroid estrone, an estrogen Primobolone, an anabolic steroid 2,2-Bis(2-hydroxyphenyl)propane is a polyphenol composed of propane in which both methylene hydrogens at the 2-position have been replaced by 2-hydroxyphenyl. Bisphenol A (BPA), 2,2,-bis (4-hydroxyphenyl) propane,...

Exposure to high concentrations of ammonium sulfite, May cause asthma-like allergies, especially in susceptible people No occupational exposure limits have been established ammonium sulfite. However, it may pose health risks. Always follow safe work practices. The following acute (short-term) health effects may occur Immediately or shortly after exposure to ammonium sulfite: Contact can...

Zinc chromate or zinc yellow (other synonyms in Table 1) are widely used, for example, In the metal and printing industry. The Danish Product Register (PROBAS) lists, where 47,400 entries for 110 products containing zinc chromate such as paints, floor coverings, stains and corrosion inhibitors (Flyvholm 1991). Slightly soluble zinc chromate and readily soluble Soluble, skin corrosive zinc...

3-Methyl-1-butanol is used as an active ingredient and Kovac reagent in banana oil production. It is used as a defoamer. Used as an intermediate in the manufacture of corrosion inhibitors, buoyancy aids, fuel and lubricating oil additives, PVC stabilizers, medicines, cosmetics, plasticizers, rubber additives and paint solvents. To establish the green light-induced production of isobutanol and...

Colorless, translucent lumps or hard, white, odorless crystals. Boron oxide is colorless translucent glass block or white hard odorless crystal. Melting point 450°C; Boiling point: 1860°C. Density: 2.46 g cm-3. Slightly soluble in water. Used as an insecticide; as a starting material for the synthesis of other boron compounds; as a flux for enamel and glass; mixed with 2-6% boron...

  Calcium fluoride (CaF2) is the major source of fluorine worldwide. It occurs as the mineral fluorite or fluorite. Unlike other calcium halides, it is practically insoluble in water. Calcium fluoride is used in the manufacture of optical components such as windows and lenses for thermal imaging systems, spectroscopy, telescopes and excimer lasers (in the form of fused lenses for...

Ethanol also known as vinyl alcohol, hydroxyethylene, or hydroxyethylene, is an alcohol with the chemical formula C2H4O (H2C=CHOH) and CAS number 557-75-5. Under normal conditions, it tautomerizes to acetaldehyde. For this reason, thermoplastic polyvinyl alcohol (PVA or PVOH) derived from this monomer is produced indirectly by polymerization of vinyl acetate followed by hydrolysis of ester...

Chlorous acid is the most unstable of all oxyacids. It can be prepared by treating a suspension of barium chlorite with sulfuric acid and then removing the precipitated barium sulfate: Chlorous acid is an inorganic compound and a weak acid. In this acid, the oxidation state of chlorine is +3. The pure substance present in chlorous acid is unstable and disproportionates into hypochlorous acid...

Many (but not all) of the experimental results obtained in JSR are symbolized in Figures 4-6, and all experimental measurements are summarized in the Supporting Information in tabular form. These figures show that 2-methyl-2-butene starts to react at about 700 K, with little reactivity observed at lower temperatures. Overall, there are few sources of experimental data to aid in the...