نتایج جستجو برای: aluminium chloride hexahydrate
تعداد نتایج: 102388 فیلتر نتایج به سال:
A solution to the problem of eliminating the use of toxic reagents in the laboratories of the South African sugar industry has been sought for some time. This paper contains the results of an investigation to replace basic lead acetate as a clarification agent in the determination of pol by substituting it with a mixture of aluminium chloride and calcium hydroxide. This mixture achieves good cl...
This paper aims to investigate the impact of soluble magnesium on structure C-S-H formed at elevated temperature. Magnesium chloride hexahydrate, calcium oxide and silica fume were used in preparation Mg2+ modified C-S-H. The obtained solid liquid samples synthetic characterized with XRD, FTIR, TGA, etc. structural features Results show that mineralogical compositions synthesized are highly rel...
A Reusable FeCl3∙6H2O/Cationic 2,2′-Bipyridyl Catalytic System for Reduction of Nitroarenes in Water
The association of a commercially-available iron (III) chloride hexahydrate (FeCl3∙6H2O) with cationic 2,2′-bipyridyl in water was proven to be an operationally simple and reusable catalytic system for the highly-selective reduction nitroarenes anilines. This procedure conducted under air using 1–2 mol% catalyst presence 4 equiv hydrazine monohydrate (H2NNH2∙H2O) neat at 100 °C 12 h, provided h...
Wastes produced by oil/water separation at the wastewater treatment plant of Bari West (Southern Italy) were taken, characterized and converted. About 12% of this material was composed of greases, mainly made of free fatty acids (50%) and soaps (34%), and was easily separable by the aqueous phase through a hot centrifugation. After chemical activation of this fatty fraction, a direct esterifica...
The gill parasitizing monogeneans Pseudodactylogyrus anguillae and P. bini are pathogens which represent a major threat to eel farming. Legislation and selection of anthelmintic resistance make parasite eradication using conventional anthelmintics difficult and emphasize the needs for development of alternative control methods. Conditioning of fish tank water with aluminium chloride (up to 25 m...
Copper perchlorate hexahydrate as an efficient catalyst was used for the synthesis of polyhydroquinolines by four-component condensation reaction of aldehyde, ethyl acetoacetate, dimedone, and ammonium acetate in excellent yields and short reaction times at room temperature under ultrasound irradiation. This novel synthetic method is especially favoured because it provides a synergy between cop...
Regioselective methanesulfonylation of simple aromatics using methanesulfonic anhydride can be achieved over zeolite catalysts. For example, methanesulfonylation of toluene over various cation-exchanged zeolite beta catalysts affords higher para-selectivity in the synthesis of methyl tolyl sulfone than standard Friedel-Crafts methanesulfonylation utilising aluminium chloride.
The title compound, C(16)H(12)Cl(2)O, was synthesized from 1-naphthol and 1,2-dichloro-benzene with anhydrous aluminium chloride as a cataylst. In the mol-ecule, the two ring systems are approximately perpendicular to one other with a dihedral angle of 82.06 (4)°. There are two CH-type hydrogen bonds.
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