Tag: M.W=300-400

COA of Formula: Al2H8O13S3. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about The effect of the composition and of the calcination regimes of a mixture of aluminum and magnesium sulfates on the formation process of spinels. Author is Sokol, V. A.; Rokhlenko, D. A.; Kononova, L. I..

During calcination of MgSO4-Al2(SO4)3.18H2O mixtures the completion of the formation of Al2MgO4 depends on excess H2SO4 or (NH4)2SO4 and on the rate of heating ≤1300°. The optimum parameters for the formation of Al2MgO4 are: H2SO4 content in Al2(SO4)3.18H2O is 0.5-3 mass%, region of thermal treatment is continuous, rate of increase of temperature is 300-600° h-1 and isothermal heating for 3-6 h at 1300°.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Effect of shear schedule on particle size, density, and structure during flocculation in stirred tanks, the main research direction is flocculation shear schedule particle size structure.Computed Properties of Al2H8O13S3.

The effect of shear history on the evolution of the polystyrene-alum floc size, d., and structure is investigated by small-angle light scattering during cycled-shear and tapered-shear flocculation in a stirred tank using a Rushton impeller. First, various sampling schemes are exptl. evaluated. The floc structure is characterized by the mass fractal dimension, Df, and the relative floc d. During turbulent shear flocculation, small floc structures are shown to be more open (Df=2.1) than larger floc structures (Df=2.5) as a result of shear-induced restructuring during steady state attainment. Flocs produced by cycled-shear flocculation are grown at shear rate G=50 s-1 for 30 min, are fragmented at Gb=100, 300, or 500 s-1 for one minute, and then are regrown at G=50 s-1. This shear schedule decreases the floc size but compacts the floc structure. When flocs are produced by gradual reduction of the shear rate from G=300 to 50 s-1 (tapered-shear flocculation), smaller though equally dense flocs are produced compared with cycled-shear flocculation. The cycled-shear flocculation method produces the largest flocs with the highest potential for sedimentation when the fragmentation shear rate is Gb=300 s-1.

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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Effect of acid, pseudoneutral, or neutral operation modes on sizing of paper and cardboard.Related Products of 17927-65-0.

A review with 24 references is given on the sizing of papers and cardboards in relation to the different operation modes (acidic, pseudoneutral, or neutral) which can be applied during papermaking. After a brief historical survey, the chem. of the fixing agents Al2(SO4)3.18H2O and poly(aluminum chloride) (PAC) is described in the different operation modes. Problems during the production of wood-containing and wastepaper-containing papers are discussed arising from high concentrations of impurities. To reduce the impurity concentrations, inorganic adsorption agents, like bentonite or talcum, cationic fixing agents, or combinations of them are added.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Aluminum(III) sulfate xhydrate(SMILESS: O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al],cas:17927-65-0) is researched.Electric Literature of C20H30Cl4Rh2. The article 《The thermal decomposition of aluminum sulfate in different gas phase environments》 in relation to this compound, is published in Thermochimica Acta. Let’s take a look at the latest research on this compound (cas:17927-65-0).

The thermal decomposition of Al2(SO4)3.xH2O was studied. The process was faster in a reducing atm. (Ar:H 95:5 volume %) but the mechanism remained constant Al2O(SO4)2 formed as intermediate in both cases. A 2-step mechanism is proposed.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Syrkin, Ya. M.; Shokotova, B. G.; Engorn, T. I.; Tokar, V. A.; Zubik, M. I. researched the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0 ).Computed Properties of Al2H8O13S3.They published the article 《Increase in the hydration activity and improvement in the structural-engineering properties of slag portland cement》 about this compound( cas:17927-65-0 ) in Tsement. Keywords: slag cement hydration activity. We’ll tell you more about this compound (cas:17927-65-0).

The sulfate-aluminate-silicate product, obtained as a tailing in the production of Al sulfate from kaolin clays, is used as an hardening accelerator for slag portland cement. The tailings consist of amorphous SiO2, metakaolinite [15123-81-6], Al2(SO4)3.nH2O, NaAl(SO4)2.12H2O, gypsum [13397-24-5], anhydrite [14798-04-0], and some Fe and Mg sulfates. Initial and final setting times and compressive and tensile strengths are determined of slag portland cements with 1 and 3% of these tailings and those with 1% coke dust. These additives increase the hydration activity of the slag portland cement and its frost resistance and decrease the shrinkage deformation.

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Pelovski, Y.; Petkova, V. published an article about the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0,SMILESS:O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al] ).Reference of Aluminum(III) sulfate xhydrate. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:17927-65-0) through the article.

The thermal decomposition of tribochem. activated Al2(SO4)3.xH2O was studied by TG, DTA and EMF methods. For some of the intermediate solids, x-ray diffraction and IR-spectroscopy were applied to learn more about the reaction mechanism. Thermal and EMF studies confirmed that, even after mech. activation of Al2(SO4)3.xH2O, Al2O(SO4)2 is formed as an intermediate. Isothermal kinetic experiments demonstrated that the thermochem. sulfurization of inactivated Al2(SO4)3.xH2O has an activation energy of 102.2 kJ.mol-1 in the temperature range 850-890 K. The activation energy for activated Al2(SO4)3.xH2O in the range 850-900 K is 55.0 kJ.mol-1. The time of thermal decomposition is almost halved when Al2(SO4)3.xH2O is activated mech. The results permit conclusions concerning the efficiency of the tribochem. activation of Al2(SO4)3.xH2O and the chem. and kinetic mechanisms of the desulfurization process.

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Electric Literature of Al2H8O13S3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Adsorbing power of metal hydrates. 2. Author is Campo, F.; Carradore, L.; Furlani, D.; Panfilio, R..

The use of the hydrates of Gabbroclar  [88651-25-6], Al2(SO4)3  [17927-65-0], FeCl3  [10025-77-1], and Alpoclar  [68248-05-5], as adsorbents in water purification can be more efficient than using activated carbon.

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Formula: Al2H8O13S3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Image analysis of floc size distribution induced by two different impellers. Author is Bouyer, Denis; Line, Alain; Do-Quang, Zdravka.

The goal is to analyze the relation between characteristic floc size and hydrodynamics. The 1st question concerned the relation between an average floc size and the viscous dissipation of kinetic energy. A series of flocculation experiments was conducted in a mixing tank with 2 impellers (a Rushton turbine and a Lightnin A310 impeller) for equivalent dissipated power conditions. The average floc size depended on the global dissipation rate whatever the impeller type. However, the floc size distributions are significantly different for each impeller. This difference can be explained by the spatial distribution of the dissipation rate of the turbulent kinetic energy, which depends on impeller type. The 2nd question concerned the dependence of the floc size to the history of mixing. The flocculation experiments show that the floc size distributions was reproducible once the flocs had been submitted to the highest velocity gradient.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called The testing conditions of sodium carbonate, sodium sulfate and certain other hydrated salts, published in 1931, which mentions a compound: 17927-65-0, Name is Aluminum(III) sulfate xhydrate, Molecular Al2H8O13S3, Name: Aluminum(III) sulfate xhydrate.

The H2O content of Na2CO3.10H2O can be determined by heating at 98° to constant weight The most stable hydrate is Na2CO3.2H2O; it is formed on standing from anhydrous soda or from the other hydrates. Na2SO4.10H2O loses all the H2O by drying a few hrs. at 98°, although the natural decahydrate, mirabilite, is stable. Borax requires heating to redness to accomplish complete dehydration. CuSO4.5H2O is very stable and does not lose water on standing over H2SO4. Al2(SO4)3.18H2O is also very stable and does not easily lose H2O. The chrome alums are easily deprived of H2O.

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Turner, Alyson J.; Nair, Smitha; Lai, Zhen; Cheng, Chieh-Min; Bhatia, Surita R. published the article 《Controlled aggregation of colloidal particles for toner applications》. Keywords: aggregation carboxylated polystyrene colloidal particle coagulant electrophotog toner application.They researched the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0 ).Related Products of 17927-65-0. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:17927-65-0) here.

Micrometer-sized particles were formed by controlled aggregation of carboxylated polystyrene colloidal spheres having a mean diameter of about 200 nm with a com. cationic coagulant. To identify the parameters governing the size and structure of the aggregates, the aggregate size distribution was studied over a period of time with dynamic light scattering. The effect of the particle concentration, pH, and ionic strength on the aggregation behavior was investigated. The coagulant concentration used for present studies was 5 parts per hundred on the basis of the polystyrene particles and the particle concentrations used were 10-15%. The particle size distribution for the latex suspensions was also investigated with a 10% aluminum sulfate [Al2(SO4)3·14H2O] solution as a model coagulant. With the com. coagulant, aggregation was found to be slower at lower pH than at neutral pH. At pH 6, the particles started to aggregate within minutes and form aggregates of about 1000 nm. The authors expected that lowering the pH would reduce interparticle repulsive forces and enhance the collision efficiency. However, at a lower pH of 2, the aggregation process slowed down. Increasing the ionic strength at neutral pH led to a broader aggregate size distribution, and the population of larger aggregates increased. The suspensions with the model coagulant showed similar behavior. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011.

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