Results 221 to 230 of about 6,482,080 (294)
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Science of The Total Environment, 1975
Abstract A brief discussion of the significance of sulfuric acid aerosol is presented together with a review of methods for its sampling, separation and determination.
V, Dharmarajan +3 more
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Abstract A brief discussion of the significance of sulfuric acid aerosol is presented together with a review of methods for its sampling, separation and determination.
V, Dharmarajan +3 more
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The sulfuric acid bake and leach route for processing of rare earth ores and concentrates: A review
Hydrometallurgy, 2019Rare earths are critical to numerous materials and applications underpinning modern civilisation. The majority of the world's rare earth reserves are hosted in the three minerals bastnasite, monazite and xenotime.
J. Demol +3 more
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The reactions of the sulfur-containing amino acids with phosphoric and sulfuric acids
Archives of Biochemistry and Biophysics, 1951Abstract Both cystine and cysteine react very differently toward 6.0 M phosphoric and sulfuric acids. With phosphoric acid, extensive decomposi tion occurs; with sulfuric acid, very little. Cystine, in phosphoric acid at 100 °C. produces hydrogen sulfide, free sulfur, cysteic acid, ammonia, alanine, serine, and pyruvic acid.
J C, ANDREWS, R B, BRUCE
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Sulfuric acid nucleation: An experimental study of the effect of seven bases
Journal of Geophysical Research D: Atmospheres, 2015 Peter H McMurry, Coty N Jen
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Molecular-Level Understanding of Synergistic Effects in Sulfuric Acid-Amine-Ammonia Mixed Clusters.
Journal of Physical Chemistry A, 2019The abundance and basicity of a stabilizing base have shown to be key factors in sulfuric acid driven atmospheric new-particle formation. However, since experiments indicate that a low concentration of ammonia enhances particle formation from sulfuric ...
N. Myllys +4 more
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2007
Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock [1]. A yellow solid at room temperature, sulfur becomes progressively lighter in color at lower temperatures and is ...
Gerard E. d’Aquin, Robert C. Fell
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Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock [1]. A yellow solid at room temperature, sulfur becomes progressively lighter in color at lower temperatures and is ...
Gerard E. d’Aquin, Robert C. Fell
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Derivatives of sulfuric and sulfurous acids
1971Sulfuric acid was used previously as a herbicide; at present it is used for the desiccation of potato plant tops for the purpose of mechanizing the harvesting. However, because treatment with sulfuric acid greatly increases the acidity of the soil and requires subsequent liming, its scale of use is rapidly declining.
Francis A. Gunther, Jane Davis Gunther
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Equilibrium Structure of Sulfuric Acid [PDF]
The Journal of Physical Chemistry A, 2007 The equilibrium structure of the more stable conformer of H2SO4, of C2 symmetry, has been calculated ab initio using the CCSD(T) method and taking into account the core correlation correction. The accuracy of this structure has been checked by comparing it to that of similar molecules and by estimating the effects of basis set enlargement and of ...
Demaison, J. +3 more
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Cellulose I and II nanocrystals produced by sulfuric acid hydrolysis of Tetra pak cellulose I.
Carbohydrate Polymers, 2018Polymorphism is an important factor associated with the cellulose nanomaterial properties. In this study, cellulose fibers (CFs) were efficiently isolated from waste Tetra pak packages, and cellulose I and II nanocrystals were produced by treatment of ...
Lida Xing +4 more
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