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persulphate
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persulphate
persulphate Chem. (pəˈsʌlfət) [per- 5 b.] That sulphate which contains the greatest proportion of oxygen, or of the sulphuric acid radical SO4; as persulphate of iron, now more systematically named ferric sulphate, Fe2(SO4)3; persulphate of mercury, now mercuric sulphate, HgSO4.1813 T. Thomson Ann. ...
Oxford English Dictionary
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perfluoro-
perfluoro-, prefix Chem. (pəˈfluːərəʊ) [f. per-1 5 + fluor- + -o.] Used to designate organic compounds, radicals, etc., in which hydrogen has been replaced by fluorine to the maximum extent short of altering the characteristic functional groups of the species.1947 Industr. & Engin. Chem. Mar. 236/2 ...
Oxford English Dictionary
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Polypyrrole nanoparticles: control of the size and morphology
A method of controlling the size and morphology of polypyrrole nanoparticles (PPy-NPs) is successfully developed by using the combination of various non-ionic and anionic surfactants and polymerization temperatures during the synthesis. Uniform PPy-NPs are prepared via water-based redox heterogeneous polymerization of pyrrole in the presence of ammonium persulphate as an oxidant. The ...
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Praia do Norte
Similarly, some containers containing toxic fire retardant, flammable ink and paint and sodium persulphate were affected, and several containers were damaged
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per-
▪ I. per-, prefix1 The Latin preposition per (see prec.) used in composition with verbs, adjectives, and their derivatives. A large number of these have come down through Fr. into Eng.; others have been adopted directly from Lat., or formed in Eng. on Latin elements, or (as was frequent in 16–17th c...
Oxford English Dictionary
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Synthesis and characterization of polypyrrole thin film by MW-CBD ...
Ppy thin films were deposited onto glass substrate by MW-CBD method using microwave oven (working frequency 2.45 GHz). The chemical bath for the preparation of Ppy thin film was made with 0.1 M pyrrole monomer and 0.025 M ammonium persulphate dissolved in 2 vol% H 2 SO 4 separately in 100 ml beaker. The beaker containing above solution and glass substrate was placed in the first beaker ...
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Fluorescent glucose biosensor
the conditions used must not damage the protein, excluding the hydrogel, which requires non-aqueous solvents or harsh chemicals, an example being TEMED-persulphate-catalysed
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Dental restoration
The powder contains fluro-alumino-silicate glass, barium glass (provides radiopacity), potassium persulphate (a redox catalyst to provide resin cure in
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papyrograph
papyrograph, n. (pəˈpaɪərəgrɑːf, -æ-) [f. Gr. πάπῡρ-ος papyrus (see paper) + -γραϕος -graph.] Name of an apparatus patented (1874) by E. Zuccato for copying documents by chemical agents acting through a porous paper-stencil. (In quot. 1878 erroneously put for photo-papyrography.)[1876 Papier-Zeitung...
Oxford English Dictionary
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List of ISO standards 1–1999
sizes [Withdrawn without replacement]
ISO 619:1981 Manganese ores — Determination of chromium content — Diphenylcarbazide photometric method and silver persulphate
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