polybasic


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polybasic

[¦päl·i‚bā·sik]
(chemistry)
A chemical compound in solution that yields two or more H- ions per molecule, such as sulfuric acid, H2SO4.
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Product Powder Liquid Vidrion R Sodium fluorosilicate Tartaric acid and (SS White) calcium and aluminium; distilled water barium sulfate; polyacrylic acid and pigments Fuji IX Alumino fluoro Distilled water; (GC) silicate glass; polyacrylic acid; polyacrylic acid polybasic carboxylic acid Magic Glass ART Radiopaque Polycarboxilic acid; (Vigodent) fluoraluminium maleic acid; itaconic silicate crystals; acid and purified polycarboxilic acid water and pigments Maxxion R Glass of fluoro Polyacrylic acid and (FGM) aluminium silicate, water calcium fluoride and pigments ChemFlex Strontium, aluminum, Polyacrylic acid (Dentsply) fluoride, silicate, polyacrylic acid, tartaric acid and pigments Product Powder/Liquid Vidrion R 1 scoop / 1 drop (2.
Polybasic acids play an important role in biological and industrial processes and accurate knowledge of their properties is therefore required.
Compound 48/80, the best-known polybasic histamine releaser, was discovered in the search for hypotensive agents.
An unsaturated polyester resin system consists of a resin formed by the partial reaction of a polybasic alcohol with a saturated or unsaturated polybasic acid, and a monomer, which dissolves that resin and acts as the crosslinking or thermosetting agent.
pH calculations involving hydrolysis, polybasic acids, buffer solutions and the common titrametric methods are treated in chapters 7 through 12 with most of the templates providing for graphing.
Since the swelling properties of polybasic gels are influenced by buffer solution, no additional ions through buffer solution were added to the medium for setting pH.
Tertiary alcohols would lead to optimum hydrolytic stability, but secondary alcohols are commercially available and are more reactive with the polybasic acids used in alkyd polymers.
Highly Pathogenic Influenza strains of all clades possess the polybasic cleavage site.
We report the investigation of illness in a patient in China infected with an A(H7N9) virus with a novel polybasic amino acid sequence at its HA cleavage site, a change that corresponds with increased pathogenicity in poultry and potentially (although not invariably) increased pathogenicity in humans.
It is comprised of applying an organic acid to a substrate to form a layer and drying the layer, wherein the organic acid has at least two acid groups and is selected from the group consisting of a graft polymer, a polybasic carboxylic acid, a polymer of an unsaturated carboxylic acid and a co-polymer of an unsaturated carboxylic acid.
We sequenced full-length genomes and found the polybasic amino acid sequence, REKRRKR*GL in the hemagglutinin (HA) cleavage site, confirming the virus can be classified as highly pathogenic.
4 H5N8 highly pathogenic avian influenza viruses from wild birds possessing atypical hemagglutinin polybasic cleavage sites.