Tetramethyl ammonium iodide

Figure 7. The effect of 0.11 mM tetramethyl ammonium iodide on the concentration dependent inhibition of AChE by ANTX-A(S). Conditions and symbols are the same as Figure 5.

Arsenic triiodide also dissolves, the saturated solution at 15° C. having density 3-661. Other soluble halides are potassium bromide, anhydrous ferric and aluminium chlorides 6 and tetramethyl ammonium iodide but the iodides of rubidium, cadmium, manganese and cobalt, also mercuric and stannic iodides, and cobalt and stannic bromides, are insoluble or only very slightly soluble in arsenic tribromide. The liquid also dissolves phosphoryl bromide and, very slightly, ammonium thiocyanate. In the mixed solutions of halides, the components may react chemically (cf. p. 106), but such is not always the case for example, with antimony tribromide a continuous series of solid solutions is formed.7... 

Quaternary amines consist of four alkyl or aryl groups attached to an N atom and, therefore, may be considered substituted ammonium bases. Commonly, they are referred lo in the trade as quaternary ammonium compounds. An example is tetramethyl ammonium iodide. 

Other products of reaction of halogeno compounds with carbonyl clusters are Os2(CO)el2 and Os2(CO)sl2 from the reaction of Os3(CO)i2 with CF3I, and Os2(CO)gCl4 from a similar reaction with HCl (53). Ru3(CO)i2 reacts with allyl halides to form Ru(CO)3(C3H5)X (X = Cl, Br, I) (45, 343). Rh4(CO)i2 is reported (88) to react with tetramethyl-ammonium iodide to produce RhejCOjigl". 

Sandler, Berg, and Kitazawa [9] reported that 2,4-toluene diisocyanate reacts with diglycidyl ethers to give poly-2-oxazolidones. A similar reaction was also reported for monoisocyanates reacting with monoepoxides [9,10]. The reaction takes place in DMF as a solvent and is catalyzed by tetramethyl-ammonium iodide at 160°C for 6 hr. A recent review of this reaction is worth consulting for additional background material [10a]. 

Fig. 11.4 AFM micrographs of 300 nm thick PS films after 5-min exposure to water or 0.03 M degassed aqueous solutions of ammonium chloride, potassium chloride, tetramethyl ammonium iodide, tetraphenyl arsonium chloride, Ph4AsCl, and sodium tetraphenylborate, NaPh4B...

Ammonium, tetramethyl-, bromide. See Tetramethylammonium bromide Ammonium, tetramethyl-, hydroxide. See Tetramethylammonium hydroxide Ammonium, tetramethyl-, iodide. See Tetramethyl ammonium iodide Ammonium, tetrapropyl-, bromide. See Tetrapropyl ammonium bromide Ammonium, tetrapropyl-, iodide. See Tetrapropyl ammonium iodide Ammonium thiocyanate CAS 1762-95-4 EINECS/ELINCS 217-175-6 UN 9092 (DOT)... 

Tetramethylammonium hydroxide, liquid. See Tetramethylammonium hydroxide Tetramethyl ammonium iodide CAS 75-58-1... 

TMAI. See Tetramethyl ammonium iodide TMAL. See Trimethylaluminum... 

Benzyl trimethyl ammonium hydroxide Cetrimonium bromide Dimethyl diallyl ammonium chloride Laurtrimonium bromide Laurtrimonium chloride Methyl tributyl ammonium chloride Tetrabutyl ammonium bromide Tetrabutyl ammonium chloride Tetrabutyl ammonium fluoride Tetra-n-butyl ammonium hydrogen sulfate Tetra-n-butyl ammonium hydroxide Tetrabutyl ammonium iodide Tetrabutylphosphonium acetate, monoacetic acid Tetrabutylphosphonium bromide Tetrabutylphosphonium chloride Tetraethylammonium bromide Tetraethylammonium hydroxide Tetrakis (hydroxymethyl) phosphonium chloride Tetramethylammonium bromide Tetramethylammonium chloride Tetramethylammonium hydroxide Tetramethyl ammonium iodide Tetraphenyl phosphonium bromide Tetrapropyl ammonium bromide Tetrapropyl ammonium iodide Tributylamine Tributyl phosphine Tributyl (tetradecyl) phosphonium chloride Trioctyl (octadecyl) phosphonium iodide catalyst, phase-transfer Tetraethylammonium chloride Tetraoctylphosphonium bromide Tri-n-butyl methyl ammonium chloride Tri methyl phenyl ammonium hydroxide catalyst, phenolics Triethylamine... 

In a polarographic procedure for determining acrylonitrile (down to 2 ppm) and styrene (down to 20 ppm) monomers in styrene-acrylonitrile copolymer, the sample is dissolved in 0.2 M tetramethyl ammonium iodide in dimethyl formamide base electrolyte... 

Various combinations of compounds to from the dfective catalyst systems for butene-2 polymerization to polybutene-1 have been disclosed in a patent by Chauvin and Lefebvre (21). According to this patent, the addition of Lewis bases such as triethylamine, pyridine and tetramethyl-ammonium iodide to S ler-Natta catalysts increases the yield of ethyl ether insoluble isotactic polybutene-1. 

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