amphoteric


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am·pho·ter·ic

 (ăm′fə-tĕr′ĭk)
adj.
Having the characteristics of an acid and a base and capable of reacting chemically either as an acid or a base.

[From Greek amphoteros, each of two, from amphō, both.]

amphoteric

(ˌæmfəˈtɛrɪk)
adj
(Chemistry) chem able to function as either a base or an acid. Also: amphiprotic
[C19: from Greek amphoteros each of two (from amphō both) + -ic]

am•pho•ter•ic

(ˌæm fəˈtɛr ɪk)

adj.
capable of functioning either as an acid or as a base.
[1840–50; < Greek amphóter(os) either (comp. of ámphō both; c. Latin ambō) + -ic]

am·pho·ter·ic

(ăm′fə-tĕr′ĭk)
Capable of reacting chemically as either an acid or a base. Water, ammonia, and the hydroxides of certain metals are amphoteric.

amphoteric

Describes a substance which exhibits properties of both an acid and a base.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.amphoteric - having characteristics of both an acid and a base and capable of reacting as eitheramphoteric - having characteristics of both an acid and a base and capable of reacting as either
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
acidic - being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)
alkalic, alkaline - relating to or containing an alkali; having a pH greater than 7; "alkaline soils derived from chalk or limestone"
Translations

amphoteric

[ˌæmfəˈtɛrɪk] adj (Chem) → anfotero/a
References in periodicals archive ?
The oil-in-water emulsion composition is comprised of an emollient; a surfactant selected from the group consisting of nonionic surfactants, amphoteric surfactants, anionic surfactants, cationic surfactants and combinations thereof; a preservative, wherein said preservative is a paraben-based antimicrobial comprising methylparaben, ethylparaben and propylparaben; at least 0.
of a second alcohol ethoxylate nonionic surfactant; one or more further surfactants selected from amphoteric or zwitterionic surfactants, but which expressly exclude cationic surfactants; an organic solvent constituent; alkanolamine; and acid constituent which comprises a ternary acid system comprising each of sulfamic acid, formic acid and oxalic acid in a respective weight ratio of sulfamic acid:formic acid:oxalic acid of 1-8:1-5:1-3; optionally one or more further constituents which are directed to improving one or more aesthetic or functional features of the composition; and water.
An abstract of the amino acid technology ("In-Situ Solubilization of Class II Drugs During The Hydrosol-Gelation Phase In The Presence of Amphoteric Amino Acids, Polysaccharides, and Polymers: A Novel Approach In Controlled Release Drug Delivery") will be presented to the industry for the first time at AAPS by Dr.
The report " Fluorosurfactants Market by Type (Amphoteric, Nonioninc, Anionic and Cationic), by Application (Paints & Coatings, Waxes, Polishes, Cleaners, Films, Adhesives and Others) & Region - Global Industry Trends & Forecasts to 2019 " , defines and segments the fluorosurfactants market with an analysis and forecast of the market size in terms of value and volume for types such as amphoteric, nonioninc, anionic and cationic for each of the regions and their major countries.
Composition A and/or B comprises one or more surfactants selected from anionic, nonionic and amphoteric ones and their mixtures at a concentration between 1 and 30% by weight calculated to total of compositions A or B and the mixture has a pH below or equal to 7.
The amphoteric surfactants are poised to exhibit the fastest growth due to their usage as corrosion inhibitor.
The composition comprises a water-soluble film encapsulating a liquid treatment composition and a pre-crystallized organic pearlescent dispersion that is comprised of a pearlescent agent, a surfactant selected from the group consisting of linear or branched C12-C14 alkyl sulfate, alkyl ether sulfate, and mixtures thereof; water and adjuncts selected from the group consisting of buffers, pH modifiers, viscosity modifiers, ionic strength modifiers, fatty alcohols, amphoteric surfactants, and mixtures thereof; a carrier; a co-crystallizing agent and optionally, a laundry adjunct.
Rhodia HPCII is a Rhodia Group Enterprise, the world leader in stain-resistant polymers and mild amphoteric surfactants.
This report analyzes the worldwide markets for Surface Active Agents in Thousand Tons & US$ Million by the following Product Segments: Anionic Surfactants, Nonionic Surfactants, Cationic Surfactants, and Amphoteric Surfactants.
AMPHOTERISEL-A unique complex which combines an amphoteric surfactant system with a water-soluble silicone.
Both amphoteric and charged substrates can be used.