Tag: M.W=300-400

Quality Control of Aluminum(III) sulfate xhydrate. 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 A novel photoinitiated approach for preparing aluminum diethylphosphinate under atmospheric pressure. Author is Yang, Li; Han, Xin Yu; Tang, Xue Jiao; Han, Chang Xiu; Zhou, Yi Xiao; Zhang, Bao Gui.

A novel preparation of aluminum diethylphosphinate (AlPi) was carried out with free-radical addition reaction by means of UV-irradiation under atm. pressure. A solution of sodium hypophosphite was treated with ethylene and irradiated with UV light in the presence of an amount of photoinitiator effective to initiate the free-radical reaction between the hypophosphite anion and the double bond of the ethylene mol. The ethylene was micro-bubbled into the reaction mixture with the addition of the photoinitiator, and the gas-liquid contact surface and the photoinitiator concentration in the gas-liquid interface were increased largely. The yield of the final product could be improved to about 96%. The contents of P, Al in samples were detected by ICP, and the mol. structure of the samples was confirmed by 31P NMR, 1H NMR and FTIR spectroscopic anal. Thermal stability of the final products was investigated in detail by TG-DTA.

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Isothiazole – Wikipedia,
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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 17927-65-0, is researched, SMILESS is O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al], Molecular Al2H8O13S3Journal, Kongop Hwahak called Synthesis of hydrated aluminum sulfate from kaolin using microwave energy, Author is Park, Seong Soo; Hwang, Eun Hee; Park, Hee Chan, the main research direction is hydrated aluminum sulfate synthesis kaolin microwave.SDS of cas: 17927-65-0.

Hydrated aluminum sulfate, an inorganic polymer, was synthesized from kaolin in H2SO4 solution using microwave energy. The maximum rates of alumina extracted from calcined kaolin were 72.8% in a conventional process (80°, 1M, and 180 min) and 99.9% in a microwave process (90°, 1M, and 60 min). Compared with the conventional one, the hydrated aluminum sulfate synthesized under the microwave process had layer structure consisting of plate-shaped large grains. After synthesis and then calcination at 1100°, both products in conventional and microwave processes were γ-Al2O3 with agglomerated powders of spherical shape. The specific area of the products in conventional and microwave processes were 113.5 and 106.6 m2/g, and their average grain sizes were 46.5 and 26.3 μm, resp.

There is still a lot of research devoted to this compound(SMILES：O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al])SDS of cas: 17927-65-0, and with the development of science, more effects of this compound(17927-65-0) can be discovered.

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

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.Perov, E. V.; Stolyarenko, G. S. researched the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0 ).Safety of Aluminum(III) sulfate xhydrate.They published the article 《Concentration of nitric acid by crystallization of hydrates》 about this compound( cas:17927-65-0 ) in Sb. Nauch. Tr. Kuzbass. Politekh. Inst.. Keywords: nitric acid concentration; crystallization hydrate acid concentration. We’ll tell you more about this compound (cas:17927-65-0).

The concentration of dilute HNO3 solutions by crystallization of hydrates of K, Na, Ca, Mg, Fe, and Al sulfates was studied. Pos. results were obtained only with Al2(SO4)3. Anhydrous Al2(SO4)3 was added to 40-60% HNO3 solution at 90-5°. Cooling to 25-30° precipitated Al2(SO4)3-hydrate from which HNO3 was separated by filtration or distillation at 100-50 mm pressure to give 73.5-5.8% HNO3 solution The yield was 93.5-4.8%.

There is still a lot of research devoted to this compound(SMILES：O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al])Safety of Aluminum(III) sulfate xhydrate, and with the development of science, more effects of this compound(17927-65-0) can be discovered.

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Alkaline, mental, and acidic ranges [in papermaking], published in 2000, which mentions a compound: 17927-65-0, mainly applied to paper making neutral acidic condition; aluminum sulfate calcium carbonate interaction paper manufacture, Synthetic Route of Al2H8O13S3.

The manufacturing of papers is described under acidic and neutral operating conditions. The fabrication of papers under these conditions is based on the use of Al2(SO4)3.18H2O and CaCO3 as white pigments. The competing reactions of these 2 reagents are described and their advantages and disadvantages for paper production are discussed in relation to the pH value and the wood content of the papers.

There is still a lot of research devoted to this compound(SMILES：O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al])Synthetic Route of Al2H8O13S3, and with the development of science, more effects of this compound(17927-65-0) can be discovered.

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Kongop Hwahak called Synthesis of hydrated aluminum sulfate from kaolin using microwave energy, Author is Park, Seong Soo; Hwang, Eun Hee; Park, Hee Chan, which mentions a compound: 17927-65-0, SMILESS is O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al], Molecular Al2H8O13S3, Computed Properties of Al2H8O13S3.

Hydrated aluminum sulfate, an inorganic polymer, was synthesized from kaolin in H2SO4 solution using microwave energy. The maximum rates of alumina extracted from calcined kaolin were 72.8% in a conventional process (80°, 1M, and 180 min) and 99.9% in a microwave process (90°, 1M, and 60 min). Compared with the conventional one, the hydrated aluminum sulfate synthesized under the microwave process had layer structure consisting of plate-shaped large grains. After synthesis and then calcination at 1100°, both products in conventional and microwave processes were γ-Al2O3 with agglomerated powders of spherical shape. The specific area of the products in conventional and microwave processes were 113.5 and 106.6 m2/g, and their average grain sizes were 46.5 and 26.3 μm, resp.

There is still a lot of research devoted to this compound(SMILES：O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al])Computed Properties of Al2H8O13S3, and with the development of science, more effects of this compound(17927-65-0) can be discovered.

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Reference of Aluminum(III) sulfate xhydrate. 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 Study on the structure and composition of anodic oxide films of aluminum. Author is Xu, Tao; Zhao, Jiazheng; Cheng, Jianming; Dang, Hongxin.

The structure and composition of the porous anodic oxide films of Al (abbreviated AOFAl) formed in oxalic acid (I) and H2SO4 (II) solutions, resp., were studied by TEM, IR and TGA. The porous anodic oxide films consist of a large number of hexagonal cells with an irregularly round pore in the center of each cell which penetrates vertically from surface to bottom, while a barrier layer under the film directly contacts with an Al substrate in a scallop shape. The content of Al2(C2O4)3 and Al2(SO4)3 in AOFAl (I) and (II) are ∼4.9% and ∼14.2%, resp.; ∼3.5% H2O of crystallization of Al2(SO4)3.xH2O which can be evolved at rather low temperature (∼85°) enriches between the cells and under the barrier layer of AOFAl (II); after irradiation by the electron beam of TEM the H2O of crystallization is removed and voids are formed.

There is still a lot of research devoted to this compound(SMILES：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, and with the development of science, more effects of this compound(17927-65-0) can be discovered.

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Synthetic Route of C10H12ClIN2O2. 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: tert-Butyl (6-chloro-4-iodopyridin-3-yl)carbamate, is researched, Molecular C10H12ClIN2O2, CAS is 400777-00-6, about Discovery of potent, balanced and orally active dual NK1/NK3 receptor ligands.

During a program directed at selective NK1 receptor antagonists, we serendipitously discovered an NK1 receptor ligand with addnl. affinity for the NK3 receptor. Recognising an opportunity for a drug discovery program aiming for dual NK1/NK3 receptor antagonists, we prepared a series of analogs from a novel, versatile building block. From this series emerged compounds with high and balanced affinities for the NK1 and the NK3 receptors. Typical representatives of this series were active in the gerbil foot tapping assay after oral administration.

There is still a lot of research devoted to this compound(SMILES：O=C(OC(C)(C)C)NC1=C(I)C=C(Cl)N=C1)Synthetic Route of C10H12ClIN2O2, and with the development of science, more effects of this compound(400777-00-6) can be discovered.

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

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 Increase in the hydration activity and improvement in the structural-engineering properties of slag portland cement. Author is Syrkin, Ya. M.; Shokotova, B. G.; Engorn, T. I.; Tokar, V. A.; Zubik, M. I..

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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Sychev, M. M.; Shiballo, V. G.; Katushkin, V. P.; Ustinov, A. E. published the article 《Dielectric properties of calcium, zinc, magnesium, copper, aluminum, iron, manganese, nickel, and cobalt sulfates》. Keywords: dielec constant sulfate hydrate cement.They researched the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0 ).Category: isothiazole. 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.

The dielec. constant (κ) of various sulfate hydrates of Ca2+, Zn2+, Mg2+, Cu2+, Al3+, Fe2+, Mn2+, Ni2+, and Co2+ was studied in relation to the n (number of mols. of bound water); the κ increased with an increase in n. A rectilinear equation κ = α + n × tg β is derived, where α = κ of anhydrous salt and tg β = tangent of the angle of curve κ-n. The compressive strength of cement stones, containing these crystallohydrates, decreased with an increase in tg β of the salt.

If you want to learn more about this compound(Aluminum(III) sulfate xhydrate)Category: isothiazole, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(17927-65-0).

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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.Application of 17927-65-0.Lee, H. published the article 《Preparation of Ba-doped γ-Al2O3 from kaolin and its characteristics》 about this compound( cas:17927-65-0 ) in RIST Yongu Nonmun. Keywords: barium doped alumina powder thermal stability. Let’s learn more about this compound (cas:17927-65-0).

The synthesis of γ-Al2O3 powder for catalytic support from kaolin-derived Al sulfate solution was described. Al sulfate hydrate[Al2(SO4)3·nH2O] was precipitated by dropping it into Et alc. The γ-Al2O3 power was prepared by calcination of the precipitate The powder showed thermal stability after calcination at 1000° for 2 h. However, the powder calcined at 1200° for 2 h was fully transformed into γ-Al2O3. Ba-doped γ-Al2O3 samples were prepared by impregnation of γ-Al2O3 with appropriate solution concentrations(mol%) of Ba chloride [Ba]/([Ba]+[Al]). The effect of Ba addition on the thermal stability of the Ba-doped γ-Al2O3 was studied. The amount of the additive was 2-10 mol% with respect to the γ-Al2O3. The additions of 4 mol% and 8 mol% Ba were effective at 1250° and 1450° in retarding the γ-Al2O3 transition due to the formation of Ba hexaaluminate(BaAl12O19). The activation energies of the γ-Al2O3 → α-Al2O3 transition in samples with and without 4 mol% Ba-doped were calculated in accordance with the Arrhenius equation and resulted in 114.5 Kcal/mol and 137.8 Kcal/mol, resp.

If you want to learn more about this compound(Aluminum(III) sulfate xhydrate)Application of 17927-65-0, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(17927-65-0).

Reference:
Isothiazole – Wikipedia,
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