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The Synthesis and Characterization of Polyether-Modified Polysiloxane Phosphate
Polyether-Modified Polysiloxane Phosphate Surface Properties Synthesis
2011/12/20
In order to combine the properties of phosphate surfactants and silicone surfactants, the polyether-modified polysiloxane phosphate (PPSP) was prepared. Firstly, the intermediate was synthesized throu...
Synthesis of Amphoteric Phosphate Ester Surfactant by Polyphosphoric Acid and Its Application in Free-Chrome Collagen Fiber
Amphoteric Phosphate Ester Surfactant Free-Chrome Collagen Fiber Polyphosphoric Acid (PPA)
2011/12/15
In order to avoid using P2O5 as phosphorylation reagent in phosphorylation reaction, an amphoteric phosphate ester surfactant was synthesized by using polyphosphate acid as phosphorylation reagent. Th...
Adsorption of phosphate from aqueous solution onto modified palygorskites
Palygorskite Surface structure Phosphate adsorption Adsorption capacity
2011/11/4
In this study, the natural and modified palygorskites were tested to remove phosphate ions from aqueous solution. The modified palygorskites
were prepared by being activated with hydrochloric acid an...
Effect of KCl and CaCl2 as Background Electrolytes on the Competitive Adsorption of Glyphosate and Phosphate on Goethite
Adsorption Background Electrolyte Competition Glyphosate Goethite Phosphate
2011/12/5
Abstract: Competitive adsorption between glyphosate and phosphate on goethite was evaluated. The influence of background electrolyte on the adsorption of glyphosate and phosphate was also investigated...
Effect of Phosphate on the Formation of Nanophase Lepidocrocite from Fe(II) Sulfate
Goethite Lepidocrocite Nanophase Phosphate Rietveld Analysis
2011/12/6
Abstract: The effect of phosphate on the formation of Fe oxides from Fe(II) salts is important because phosphate is a ubiquitous anion in natural environments. For this reason, the products formed by ...
Bederite, a new pegmatite phosphate mineral from Nevados de Palermo, Argentina: Description and crystal structure
Bederite new pegmatite phosphate mineral Nevados de Palermo Argentina Description crystal structure
2012/4/1
Bederite, ideally Ca Mn Fe Mn (PO ) (H O) , orthorhombic, a = 12.559(2), b = 12.834(1), c= 11.714(2) ?, V = 1887.8(4) ?
, Z = 4, space group Pcab, is a new mineral from the El Pe?(R)AE
pegmatite, Ne...
Interaction of Synthetic Sulphate “Green Rust” with Phosphate and the Crystallization of Vivianite
Anion Exchange Fe(II)FeIII-hydroxides Green Rust Layered Hydroxides Phosphate Vivianite
2011/12/7
Abstract: Because layered Fe(II)Fe(III)-hydroxides (Green rusts, GRs) are anion exchangers, they represent potential orthophosphate sorbents in anoxic soils and sediments. To evaluate this possibility...
Effect of Phosphate on the Crystallization of Hematite, Goethite, and Lepidocrocite from Ferrihydrite
Crystallization Ferrihydrite Goethite Hematite Lepidocrocite Phosphate
2011/12/7
Abstract: We investigated the crystallization of ferrihydrite prepared by hydrolysis of Fe(NO3)3 solutions containing phosphate. Crystallization was studied at different pH (3–9), temperatures (298, 3...
Effects of microbial activity on the 18O of dissolved inorganic phosphate and textural features of synthetic apatites
microbial activity inorganic phosphate textural features synthetic apatites
2012/4/1
Laboratory growth experiments were conducted to investigate the oxygen isotope effects associated with bacterial metabolism of phosphatic compounds commonly available in nature. The observed oxygen is...
Phosphovanadylite: A new vanadium phosphate mineral with a zeolite-type structure
Phosphovanadylite vanadium phosphate mineral zeolite-type structure
2012/4/1
Phosphovanadylite, whose simplified formula is (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12H2O, is a new vanadium phosphate zeolite mineral found in the Phosphoria Formation at Monsanto’s Enoch Valley Mine, So...
Epitaxial overgrowth of goethite on hematite synthesized in phosphate media: A scanning force and transmission electron microscopy study
Epitaxial goethite hematite synthesized phosphate media scanning force transmission electron microscopy study
2012/4/6
WeusedX-raydiffraction(XRD),scanningforcemicroscopy(SFM),transmissionelec-
tronmicroscopy(TEM),andcolortoinvestigatetheeffectofphosphateonthecrystalli-
zationrate,nature,andmorphologyofironoxidespre...
Comparison of Hematite Coagulation by Charge Screening and Phosphate Adsorption: Differences in Aggregate Structure
Coagulation Kinetics Fractal Aggregate Hematite Light Scattering Phosphate Adsorption
2011/12/22
Abstract: The formation and structure of hematite aggregates were examined by dynamic and static light scattering techniques. A large range in coagulation kinetics was studied by varying either indiff...
Acidity of Montmorillonite-(Ce or Zr) Phosphate Cross-linked Compounds
Layered phosphates Montmorillonite Surface acidity
2011/12/28
The nature and number of acid sites per unit weight on a series of materials obtained by interaction of a montmorillonite with zirconium or cerium hydrogenphosphates precipitated in situ by reaction b...
Trimethyl Phosphate Induced Decomposition of Kaolinite
Aluminium alkyl phosphate Hydrolysis Kaolinite Kaolinite decomposition Trimethyl phosphate
2011/12/28
The decomposition of kaolinite by treatment with trimethyl phosphate (TMP) and the composition of the new crystalline phase formed were studied. On hot treatment with TMP, kaolinite forms a crystallin...
Fast and Slow Phosphate Sorption by Goethite-Rich Natural Materials
Adsorption Ferrihydrite Goethite Iron oxides Phosphate Porosity Silicate Sorption
2011/11/30
Abstract: Although phosphate sorption by goethite and other less-abundant Fe oxides strongly influences the concentration of this anion in the soil solution and aquatic environments, relatively little...