Trimethylammonium chloride

When ammonium chloride is heated to a higher temperature (160°) with a large excess of anhydrous formaldehyde (as paraformaldehyde), trimethyl-amine hydrochloride (trimethylammonium chloride) may be obtained ... 

CH3O—CO—CH2CH2N(CH3)3]CE [(2-Methoxycarbonyl)ethyl]trimethylammonium chloride... 

Cationic poly(vinyl alcohol) has been prepared by the reaction of A/-(3-chloro-2-hydroxypropyl)-Ai,Ai,A/-trimethylammonium chloride, PVA, and sodium hydroxide (143). Reactions between alkyUdene epoxide and PVA in particulate, free-flowing form in an alkaline environment have been reported (144). 

Purine, 8-trifluoromethyl-pX, 5, 524 (58JA3932, 58JA5744, 59JA2515) Purine, 6-trimethylammonium chloride H NMR, 5, 511 (78JOC2587)... 

Aminoethyl)trimethylammonium chloride hydrochloride (chloramine chloride hydrochloride) [3399-67-5] M 175.1, m 260 (dec). Crystd from EtOH. (Material is very soluble in H2O). 

The gummy residue is treated with 7.8 grams of Girard s "T" reagent, a commercially available (carboxymethyl) trimethylammonium chloride hydrazide which can be prepared by the method described by Girard in Organic Syntheses, collective volume II, page 85... 

Trichloroacetic acid, pKa of. 759 Trifluoroacetic acid, pKa of, 756 Trifluoromethylbenzene, electrostatic potential map of, 565 Triglyceride, see Triacylglycerol, 1061 Trimethylamine, bond angles in, 919 bond lengths in, 919 electrostatic potential map of, 921 molecular model of, 919 Trimethylammonium chloride, IR spectrum of, 953 Trimethylsilyl ether, cleavage of, 627-628... 

Small fractions of a similar type of merocyanine dye moieties (Me) were also covalently tagged onto poly(sodium 2-acrylamido-2-methylpropanesulfonate) (AMc-3, 4) and poly[(3-(methacrylamino)propyl)trimethylammonium chloride] (QMc-1, 5) [49], The observed pKobs value of 10.92 for AMc-3 was higher than that for the neutral reference (NMc-3, 6) by 2.24 pH units. By contrast, the... 

Fig. 3.1 Ti me dependences of the complex viscosity measured at a frequency of 1 Hz. An aqueous solution was prepared by dissolving 30wt.% of precursor and 0.2wt.% of N-[(trimethox-ysilyl)propyl]-N,N,N-trimethylammonium chloride in 0.01 M sulfuric acid. The stages ofthe sol-gel processes discussed in the text are I - condensation and sol formation, II - sol-gel transition, III - gel maturation. (Unpublished results).

The KB9C2H10(CH3)2 recovered from the ethanol solution is dissolved in 150 ml. of water, and a solution of 22 g. of trimethylammonium chloride in 100 ml. of water is added slowly with vigorous stirring. The precipitated salt is isolated by filtration, washed once with 50 ml. of cold water, and dried in vacuum over phosphorus(Y) oxide. The yield of (CH3)3NHB9C2Hio-(CH3)2 is 37.8 g. (98%). To purify the salt by crystallization, a boiling solution of 38 g. of the salt in 2 1. of water is allowed to cool slowly to 0°. Eighty per cent of the material is recovered in the first crop. Successive crops of the trimethylammonium salt may be obtained, or the anion may be recovered as the less soluble tetramethylammonium salt by addition of an aqueous solution of tetramethylammonium chloride to the mother liquor. The tetramethylammonium salt may be recrystallized from an ethanol-water solution. 

An equivalent M.S. HEC containing a 3-0-2-hydroxypropyl-trimethylammonium chloride group (at an equivalent M.S. to the CM grouping) also does not exhibit significant adsorption from fresh water solutions. The lack of adsorption and the inability of the HE groupings to promote interlayer entrapment in the... 

Poly-2 -hydroxy- 3 -meth acryloxy propyl Trimethylammonium Chloride 1.0-5.0 Polysciences, Warrington, PA... 

Poly-2-hydroxy-3-methacryloxyethyl Trimethylammonium Chloride Medium Permanent High Flexible Linear Side Chain Moderate... 

Materials. Reagent grade solvents, dimethyl formamide (DMF), dimethyl acetamide (DMAC), dimethyl sulfoxide (DMSO) and methanol were purchased from Baker, stored over molecular sieves once opened, and used without further purification. Aminoethane thiosulfuric acid (AETSA) purchased from Kodak, and Taurine, purchased from Alfa were purified by recrystallization. Each was thrice recrystallized from hot, deionized water. The crystalline precipitate was dried (48 hours at 40 °C) in-vacuo and subsequently stored in a desiccator. Benzophenone (BP) was purchased from Aldrich Chemical Company. QUANTACURE BTC (BTC), (4-benzolybenzyl) trimethylammonium chloride, was used as supplied by Aceto, Inc., Flushing, New York. Phenyl glycidyl ether (PGE) was purchased from MCB, distilled in-vacuo. and stored at -15 °C. Epon 828 was used as supplied bv Shell Chemical Company. The epoxy equivalent weight (EEW) for Epon 828 determined by an appropriate titration, was found to be 187.7. 

Preparative photolysis of AETSAPPE (0.25 M aqueous solution) at 254 nm (Rayonet reactor) resulted in the formation of the disulfide product 2-amino(2-hydroxy-3-(phenyl ether) propyl) ether disulfide (AHPEPED) as the primary photoproduct Photolysis of AETSAPPE at 254 nm (isolated line of medium pressure mercury lamp) resulted in rapid initial loss of starting material accompanied by formation (analyzed by HPLC) of AHPEPED (Figure 12a and 12b) (Scheme IV). Similar results were obtained for photolysis- at 280 nm. Quantum yields for disappearance of AETSAPPE and formation of AHPEPED at 254 nm and 280 nm are given in Table I. The photolytic decomposition of AETSAPPE in water was also accomplished by sensitization ( x =366 nm) with (4-benzoylbenzyl) trimethylammonium chloride (BTC), a water soluble benzophenone type triplet sensitizer. The quantum yield for the sensitized disappearance (Table I) is comparable to the results for direct photolysis (unfortunately, due to experimental complications we did not measure the quantum yield for AHPEPED formation). These results indicate that direct photolysis of AETSAPPE probably proceeds from a triplet state. 

The effect of mineral and organic soil constituents on the mineralisation of LAS, AE, stearyl trimethylammonium chloride (STAC) and sodium stearate (main soap component) in soils was studied by Knaebel and co-workers [38]. The four 14C-labelled compounds were aseptically adsorbed to montmorillonite, kaolinite, illite, sand and humic acids and subsequently mixed with soil yielding surfactant concentrations of about 50 jig kg-1. The CO2 formation in the serum bottle respirometers was monitored over a period of 2 months indicating that the mineralisation extent was highest for LAS (49-75%). Somewhat lower amounts of produced CO2 were reported for AE and the stearate ranging from 34-58% and 29-47%, respectively. The mineralisation extent of the cationic surfactant did not exceed 21% (kaolinite) and achieved only 7% in the montmorillonite-modified soil. Associating the mineral type with the mineralisation kinetics showed that sand... 

Goldberg, R. N., (1980b). "Evaluated Activity and Osmotic Coefficients for Aqueous Solutions Bi-univalent Compounds of Zinc and Cadmium, and Ethylene bis(trimethylammonium) Chloride and Iodide," manuscript in review. 

Trimethylammonium propylsulfonate (TMAPS), trimethylammonium chloride (TMAC)... 

Cationic detergents such as cetyl-trimethylammonium chloride (9.63) are more effective than anionic soaps such as sodium dodecylsolfonate (9.64, SDS). Nonionic detergents such as Triton X-100 (9.65, octoxynol or (polyethylene glycol)jo-... 

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