New halogen-containing tetrametallic aluminium alkoxides of formula [Al{(mu-OEt)2AlMeCl}3] ( 2-cis; 2-trans), and [Al{(mu-OEt)2AlBr2}3] ( 4), have been synthesized by combining Al(OEt)3 and Me2AlCl (for 2) or EtAlBr2 (for 4). They were fully characterized by (1H, 27Al) NMR, IR, mp, elemental analysis, and single-crystal X-ray diffractometry. The chloride analogue of 4, [Al{(mu-OEt)2AlCl2}3] ( 3...

A kind of environmental friendly novel composite flocculants which are used to treat raw water is prepared. It is made with chitosan (CS), iron modified polyaluminium chloride (CF-PAC) and modified montmorillonite on the principle of “the combination of organic and inorganic”. Under the optimum best compound formula and flocculation process, the turbidity of the waste water reduced by 0.62%, th...

The title compound, C(14)H(19)NO(3), was prepared via the intra-molecular rearrangement of 3-(butanoyl-amino)-phenyl butano-ate in the presence of anhydrous aluminium chloride. The near coplanarity of the aromatic ring, the amide group and the carbonyl group of the butanoyl fragment [N-C-C-C = -179.65 (17) and O-C-C-C = -178.34 (17)°] results from the intra-molecular O-H⋯O and C-H⋯O hydrogen bo...

Dicoronylene Isomers, UV/VIS Absorption Spectra, Fluorescence Spectra The non-alternant hydrocarbon cyclopenta[l,2-a:3,4,5-b'c']dicoronene (3) has been pre­ pared by aluminium chloride catalyzed dimerization o f coronene (1). The UV/VIS absorption spectrum, fluorescence spectrum and fluorescence quantum yield o f 3 is reported and com ­ pared with that o f the alternant isomer benzo[l,2,3-bc:4,...

Hydrolysis of the ionic liquid Et3NHCl-2AlCl3 and a process for recycling the triethylamine were studied. When the hydrolysis was carried out at a relatively high temperature, the released HCl could be absorbed more easily. With addition of sodium hydroxide to the aqueous hydrolysis solution, a feasible process for recycling triethylamine was developed, involving first distillation of triethyla...

Some of the component metals of the alloys used for total joint prostheses are toxic and dissolve in the body fluids. It is important to establish how toxic these metals are and to assess the risk of localised tissue necrosis around the prostheses. This has been investigated by incubating primary monolayer cultures of human synovial fibroblasts with various preparations of metals for periods up...

The electrical conductivity, thermochemical and electrochemical properties of a system consisting melts aluminium trichloride sodium-lithium chlorides taken in different ratios have been studied. In this system, the behaviour Ni2+ ions via cyclic voltammetry electromotive force modes heating cooling were It was found that melting temperature passes through minimum at lithium chloride (хLiCl) co...

Freshwater acidification is characterised by elevated concentrations of aqueous aluminium. Global emissions acidifying agents are reduced due to international agreements, and freshwater has shifted from chronic a more episodic character. The recovery fish populations in acidified areas likely depend on the individual’s ability recover short-time aluminium exposures. We exposed brown trout (Salm...