Category: 17927-65-0

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, Quality Control of 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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Spicer, Patrick T.; Pratsinis, Sotiris E.; Raper, Judy; Amal, Rose; Bushell, Graeme; Meesters, Gabrie 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] ).COA of Formula: Al2H8O13S3. 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 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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Safety of Aluminum(III) sulfate xhydrate. 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 State of water in the dehydration products of beryllium and aluminum sulfates. Author is Chuvaev, V. F.; Gazarov, R. A.; Spitsyn, V. I..

The NMR of BeSO4.4H2O, Al2(SO4)3.18H2O and of the products of their dehydration were determined Some details of the NMR spectra of MgSO4.7H2O and its dehydration products were also investigated. Substantial increase of the interproton distance was observed in all the sulfates studied possessing low amounts of H2O. This phenomenon is explained by the strong polarization of the H2O mols. and by expansion of the O-H bonds.

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Formula: Al2H8O13S3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Dielectric measurements in the early stages of hardening of monomineral binders. Author is Svatovskaya, L. B.; Shiballo, V. G..

The dielec. permeability ε of cement hardening systems decreased immediately after preparing suspensions and condensation structures with water were formed having a lower ε. At the end of the hardening process, ε remained constant Because only a small part of the water was chem. bound, the decrease in ε could be connected with the orientation effect. The curves of dielec. losses of the hardening pastes had a complex cyclic character. According to crystallo-optical data, the cyclic character was connected with changes in the phase composition of 3CaO.Al2O3,3CaO.SiO2, and Al2(SO4)3 hydrates and in the 3CaO.Al2O3 + CaSO4 system with the discontinuities of hydrated sulfate aluminate and hydrated aluminate layers.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 17927-65-0, is researched, Molecular Al2H8O13S3, about Controlled aggregation of colloidal particles for toner applications, the main research direction is aggregation carboxylated polystyrene colloidal particle coagulant electrophotog toner application.Electric Literature of Al2H8O13S3.

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.

Here is just a brief introduction to this compound(17927-65-0)Electric Literature of Al2H8O13S3, more information about the compound(Aluminum(III) sulfate xhydrate) is in the article, you can click the link below.

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Application In Synthesis of Aluminum(III) sulfate xhydrate. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Infrared spectroscopic study of phase transformations and the kinetics of the thermal decomposition of aluminum salts. Author is Drobot, N. M.; Khazanov, E. I..

The ir spectra were obtained by heating the samples thus showing the penetration of H2O into the structure of the decomposition products of the salts. AlCl3 and Al(NO3)3 are dehydrated up to 100° with formation of basic salts. The NO3 group is present up to 700°. Al2(SO4)3 has 2 forms of H2O of hydration up to 360°. The apparent energy of activation of AlCl3 dehydration is 270 kcal/mole. The presence of the ions SO42-, Cl-, NO3-, OH- affects the thermal decomposition of the salts.

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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 Tribochemistry and kinetics of Al2(SO4)3.xH2O decomposition. Author is Pelovski, Y.; Petkova, V..

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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Product Details of 17927-65-0. 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 Molten salt synthesis of mullite nanowhiskers using different silica sources. Author is Yang, Tao; Qiu, Peng-long; Zhang, Mei; Chou, Kuo-Chih; Hou, Xin-mei; Yan, Bai-jun.

Mullite nanowhiskers with Al-rich structure were prepared by molten salt synthesis at 1000°C for 3 h in air using silica, amorphous silica, and ultrafine silica as the silica sources. The phase and morphol. of the synthesized products were investigated by X-ray diffraction, SEM, energy dispersive spectroscopy, and transmission electron microscopy. A thermogravimetric and DTA was carried out to determine the reaction mechanism. The results reveal that the silica sources play an important role in determining the morphol. of the obtained mullite nanowhiskers. Clusters and disordered arrangements are obtained using common silica and amorphous silica, resp., whereas the use of ultrafine silica leads to highly ordered mullite nanowhiskers that are 80-120 nm in diameter and 20-30 μm in length. Considering the growth mechanisms, mullite nanowhiskers in the forms of clusters and highly ordered arrangements can be attributed to heterogeneous nucleation, whereas disordered mullite nanowhiskers are obtained by homogenous nucleation.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0 ) is researched.Formula: Al2H8O13S3.Spicer, Patrick T.; Pratsinis, Sotiris E.; Raper, Judy; Amal, Rose; Bushell, Graeme; Meesters, Gabrie published the article 《Effect of shear schedule on particle size, density, and structure during flocculation in stirred tanks》 about this compound( cas:17927-65-0 ) in Powder Technology. Keywords: flocculation shear schedule particle size structure. Let’s learn more about this compound (cas:17927-65-0).

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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Application In Synthesis of Aluminum(III) sulfate xhydrate. 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. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Molten salt synthesis of mullite nanowhiskers using different silica sources.

Mullite nanowhiskers with Al-rich structure were prepared by molten salt synthesis at 1000°C for 3 h in air using silica, amorphous silica, and ultrafine silica as the silica sources. The phase and morphol. of the synthesized products were investigated by X-ray diffraction, SEM, energy dispersive spectroscopy, and transmission electron microscopy. A thermogravimetric and DTA was carried out to determine the reaction mechanism. The results reveal that the silica sources play an important role in determining the morphol. of the obtained mullite nanowhiskers. Clusters and disordered arrangements are obtained using common silica and amorphous silica, resp., whereas the use of ultrafine silica leads to highly ordered mullite nanowhiskers that are 80-120 nm in diameter and 20-30 μm in length. Considering the growth mechanisms, mullite nanowhiskers in the forms of clusters and highly ordered arrangements can be attributed to heterogeneous nucleation, whereas disordered mullite nanowhiskers are obtained by homogenous nucleation.

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