enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Bromoacetic acid - Wikipedia

    en.wikipedia.org/wiki/Bromoacetic_acid

    Bromoacetic acid is the chemical compound with the formula Br C H 2 CO 2 H. This colorless solid is a relatively strong alkylating agent . Bromoacetic acid and its esters are widely used building blocks in organic synthesis , for example, in pharmaceutical chemistry .

  3. Haloacetic acids - Wikipedia

    en.wikipedia.org/wiki/Haloacetic_acids

    Dichloroacetic acid (Cl 2 CH−CO 2 H) Trichloroacetic acid (Cl 3 C−CO 2 H) Bromoacetic acid (BrCH 2 −CO 2 H) Dibromoacetic acid (Br 2 CH−CO 2 H) The regulation limit for these five acids combined is 60 parts per billion (ppb). [5] The sum of bromodichloroacetic acid, dibromochloroacetic acid and tribromoacetic acid concentrations is ...

  4. Acid dissociation constant - Wikipedia

    en.wikipedia.org/wiki/Acid_dissociation_constant

    Nitric acid, with a pK value of around −1.7, behaves as a strong acid in aqueous solutions with a pH greater than 1. [23] At lower pH values it behaves as a weak acid. pK a values for strong acids have been estimated by theoretical means. [24] For example, the pK a value of aqueous HCl has been estimated as −9.3.

  5. Methyl 2-bromoacetate - Wikipedia

    en.wikipedia.org/wiki/Methyl_2-bromoacetate

    Methyl bromoacetate is an alkylating agent.It has been used to alkylate phenol and amino groups. [4] [5] Moreover, it can be used to make vitamins and pharmaceutical drugs.It is commonly used as a reagent in chemical modification of histidine. [2]

  6. Henderson–Hasselbalch equation - Wikipedia

    en.wikipedia.org/wiki/Henderson–Hasselbalch...

    In chemistry and biochemistry, the Henderson–Hasselbalch equation = + ⁡ ([] []) relates the pH of a chemical solution of a weak acid to the numerical value of the acid dissociation constant, K a, of acid and the ratio of the concentrations, [] [] of the acid and its conjugate base in an equilibrium.

  7. Protein pKa calculations - Wikipedia

    en.wikipedia.org/wiki/Protein_pKa_calculations

    See Amino acid for the pK a values of all amino acid side chains inferred in such a way. There are also numerous experimental studies that have yielded such values, for example by use of NMR spectroscopy. The table below lists the model pK a values that are often used in a protein pK a calculation, and contains a third column based on protein ...

  8. Acid strength - Wikipedia

    en.wikipedia.org/wiki/Acid_strength

    While the value measures the tendency of an acidic solute to transfer a proton to a standard solvent (most commonly water or DMSO), the tendency of an acidic solvent to transfer a proton to a reference solute (most commonly a weak aniline base) is measured by its Hammett acidity function, the value. Although these two concepts of acid strength ...

  9. Brønsted catalysis equation - Wikipedia

    en.wikipedia.org/wiki/Brønsted_catalysis_equation

    The Brønsted equation gives information about a reaction mechanism. Reactions that have low values for proportionality constants α or β are considered to have a transition state closely resembling the reactant with little proton transfer. With a high value, proton transfer in the transition state is almost complete.