Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Ammonium, Trimethyl- -, hydroxide

Triton B Ammonium, benzyltrimethyl-, hydroxide (8) Benzenemethanaminium, N,N,N-trimethyl-, hydroxide (9) (100-85-6)... [Pg.160]

In the decomposition of trimethyl-n-decylammonium hydroxide (Equation 4.3), they suggested, OH- attacks one of the methyl groups, forcing the substituted amine to depart. Both ammonium and hydroxide ions are part of the... [Pg.171]

Trithiane, sym- S-Trithiane 1,3,5-Trithiane (291-21-4), 65, 90 Triton B Ammonium, benzyltrimethyl-, hydroxide Benzenemethanaminium, N.N.N-trimethyl-, hydroxide (100-85-6), 68, 56 Triton X-100 Glycols, polyethylene, mono[p-(1,1,3,3,-tetramethylbutyl)-phenyl]ether Poly(oxy-1,2-ethanediyl), a-(4-(1,1,3,3-tetramethylbutyl)-phenyl]-ci)-hydroxy- (9002-93-1), 68, 56... [Pg.164]

Ammonium, tetramethyl-, hydroxide EINECS 200-882-9 Hydroxyde de tetramethylammonium Methanaminium, N,N,N-trimethyl-, hydroxide NMD 3 NMW-W Tetramethylammonium hydroxide TMAH UN1835. Usually marketed as a 10% aqueous solution. d 4 = 1.00. [Pentahydrate] crystals mp = 53 . Ruka Janssen Chimica Sigma-Aldrich Fine Chem. [Pg.611]

See Lauralkonium bromide Ammonium, benzylhexadecyidimethyl-, chloride. See Cetalkonium chloride Ammonium, benzyltriethyl-, chloride. See Benzyltriethyl ammonium chloride Ammonium, benzyltrimethyl-, hydroxide. See Benzyl trimethyl ammonium hydroxide Ammonium biborate CAS 12007-58-8 12228-87-4 (tetrahydrate)... [Pg.248]

Benzenaminium, 3-[(4-amino-6-bromo-5,8-dihydro-1-hydroxy-8-imino-5-oxo-2-naphthalenyl) amino]-N,N,N-trimethyl-, chloride. See Basic blue 99 Benzenaminium, 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1 H-pyrazol-4-yl) azo]-N,N,N-trimethyl-, chloride. See Basic yellow 57 Benzenaminium, N,N,N-trimethyl-, hydroxide. See Tri methyl phenyl ammonium hydroxide Benzenaminium, N,N,N-trimethyl-4-((4,7,7-trimethyl-3-oxobicyclo (2.2.1) hept-2-ylidene) methyl)-, methyl sulfate. See Camphor benzalkonium methosulfate Benzenamne, 2-nitro-N-pheyl-. See 2-Nitrodiphenylamine Benzene... [Pg.425]

Benzene, 1 -(1 -isocyanato-1 -methylethyl)-3-(1 -methylethenyl)-. See 3-[(Prop-1-en-2-yl) phenyl] prop-2-yl isocyanate Benzene isopropyl. See Cumene Benzene, (2-isothiocyanatoethyl)-. See Phenethyl isothiocyanate Benzenemethaminium, N,N,N-trimethyl-, hydroxide. See Benzyl trimethyl ammonium hydroxide... [Pg.430]

Methanaminium, N-(2-oxopyrroloidiniyl) methyl-N-methyl-N-hexadecyl-, chloride. See Cetyl pyrrolidonylmethyl dimonium chloride Methanaminium, N,N,N-trimethyl-, bromide. See Tetramethylammonium bromide Methanaminium, N,N,N-trimethyl-, hydroxide. See Tetramethylammonium hydroxide Methanaminium, N,N,N-trimethyl-, iodide. See Tetramethyl ammonium iodide Methane. See Methane gas Methanearsonic acid, disodium salt. See Disodium methanearsonate Methanearsonic acid, monosodium salt Methanearsonic acid, sodium salt. See... [Pg.2548]

El N ECS, Canada DSL, Ja[pan ENCS listed Manuf./Dlstrib. Advanced Synthesis Tech. http //WWW. advancedsynthesis. com Tri methyl phenyl ammonium hydroxide CAS 1899-02-1 EINECS/ELINCS 217-592-3 Synonyms Ammonium, phenyltrimethyl-, hydroxide Ammonium, tri methyl phenyl-, hydroxide Benzenaminium, N,N,N-trimethyl-, hydroxide Phenyltrimethyl ammonium hydroxide Trimethylanilinium hydroxide N,N,N-Trimethylbenzenaminium hydroxide Empirical C9H15NO Formula C6HsN(CH3)30H Properties M.w. 153.23 dens. 0.80 flash pt. 10 C ref. index 1.397... [Pg.4570]

Tridecanamine, compd. with tantalum sulfide (TaS2), 30 164 ]34370-10-0], Benzenemethanaminium. A.A.lV-trimethyl-, hydroxide, compd. with tantalum sulfide (TaS,). 30 164 [34370-11-1], Acetic acid, ammonium salt, compd. with tantalum sulfide (TaSi), 30 164... [Pg.298]

Neunne. Neurine is trimethyl vinyl ammonium hydroxide, [463-88-7]. Tertiary amines and their salts vinylate readily at low... [Pg.114]

Toluhydroquinone and methyl / fX butyUiydroquinone provide improved resin color retention 2,5-di-/-butyIhydroquinone also moderates the cure rate of the resin. Quaternary ammonium compounds, such as benzyl trimethyl ammonium hydroxide, are effective stabilizers in combination with hydroquinones and also produce beneficial improvements in color when promoted with cobalt octoate. Copper naphthenate is an active stabilizer at levels of 10 ppm at higher levels (150 ppm) it infiuences the cure rate. Tertiary butylcatechol (TBC) is a popular stabilizer used by fabricators to adjust room temperature gelation characteristics. [Pg.317]

Some fabrication processes, such as continuous panel processes, are mn at elevated temperatures to improve productivity. Dual-catalyst systems are commonly used to initiate a controlled rapid gel and then a fast cure to complete the cross-linking reaction. Cumene hydroperoxide initiated at 50°C with benzyl trimethyl ammonium hydroxide and copper naphthenate in combination with tert-huty octoate are preferred for panel products. Other heat-initiated catalysts, such as lauroyl peroxide and tert-huty perbenzoate, are optional systems. Eor higher temperature mol ding processes such as pultmsion or matched metal die mol ding at temperatures of 150°C, dual-catalyst systems are usually employed based on /-butyl perbenzoate and 2,5-dimethyl-2,5-di-2-ethyIhexanoylperoxy-hexane (Table 6). [Pg.318]

Choline base [123-41 -17, [(CH2)3NCH2CH20H] 0H, triniethyl(2-hydroxyethyl)-ammonium hydroxide, derives its name from bile (Greek chole from which it was first obtained. This so-called free-ch oline is a colorless, hygroscopic Hquid with an odor of trimethyl amine. The quaternary ammonium compound (1) choline [62-49-7] or a precursor is needed in the diet as a constituent of certain phosphoHpids universally present in protoplasm. [Pg.100]

Dione 21-Acetate To a stirred solution of 500 mg of 9o-fluoro-11(3,21-dihydroxy-16-methyl-1,4,16-pregnatriene-3,20-dione 21-acetate in 5 ml of benzene and 5 ml of chloroform are added 0.50 ml of t-butyl hydroperoxide and 0.1 ml of a 35% methanolic solution of benzyl-trimethyl ammonium hydroxide. After 18 hours at room temperature, water is added and the mixture thoroughly extracted with chloroform. The chloroform extract is washed with saturated aqueous sodium chloride and dried over magnesium sulfate. Evaporation of the Solvent and crystallization of the residue from acetone-ether gives Bo-fluoro-... [Pg.684]

A thio-substituted, quaternary ammonium salt can be synthesized by the Michael addition of an alkyl thiol to acrylamide in the presence of benzyl trimethyl ammonium hydroxide as a catalyst [793-795]. The reaction leads to the crystallization of the adducts in essentially quantitative yield. Reduction of the amides by lithium aluminum hydride in tetrahydrofuran solution produces the desired amines, which are converted to desired halide by reaction of the methyl iodide with the amines. The inhibitor is useful in controlling corrosion such as that caused by CO2 and H2S. [Pg.92]

However, while ruthenium carbonyl was found to decompose the formate ion in basic media, the rate was slower (<0.1 mmol trimethyl ammonium formate to H2 and C02 per hour) than the rate of the water-gas shift reaction (>0.4 mmol H2/hr) at 5 atm CO and 100 °C. Increasing CO pressure decreased the formate decomposition rate. However, it was observed that increasing the CO pressure from 5 atm CO to 50 atm increased the H2 production rate to 10 mmol/hr. They proposed, in a similar manner to Pettit et al.,34 a mechanism that involved nucleophilic attack by amine (instead of hydroxide). Activation of the metal carbonyl (e.g., Ru3(CO) 2 cluster to Ru(CO)5) was suggested to be favored by dilution, increases in CO pressure, or, in the case of Group VIb metal carbonyl complexes, photolytic promotion. The mechanism is shown below in Scheme 9 ... [Pg.127]

In acid catalysis (HCl), the variation in pH of the medium affects the yield of oligoorganylsilsesquioxanes to a lesser extent than in the case of alkaline catalysis. Base catalysts are used in the synthesis of oligosilsesquioxanes mainly in the thermolysis of the primary products of XSiYj hydrolysis (Table 1). The most efficient catalysts, in this case, are those which are readily decomposed upon heating to give inactive products For example, the use of tetraethylammonium 32,45) trimethyl-benzyl ammonium 23.37,41) triethylamine hydroxides has proved successful. [Pg.213]

Die Addition von Nitro-alkanen an 1 -(1 -Alkenyl)-1 -trimethylsilyloxy-cyclopropane in me-thanolischer Benzyl-trimethyl-ammonium-hydroxid-Losung (Triton B) liefert unter Ring-offnung 7-Nitro-4-oxo-alkansaure-Derivate z.B.1 ... [Pg.211]

Duynstee and Grunwald present some experimental data for Reaction (F) in the presence of hexadecyl trimethyl ammonium bromide (CTABr, C = cetyl) and sodium dodecyl sulfate (NaLS, L = lauryl). Sodium hydroxide was the source of OH" in all cases. A pseudo-first-order rate constant of 2.40 x 10-2 s-1 is observed for A CTABr. Use the following absorbance data to evaluate NaLS for this reaction ... [Pg.402]

Azido-6-nitro l,4 benzoquinone-4-trimethyl-imide or Tri methyl-[3-axi do-5-nitro 4-hydroxy-phenylj-ammonium Hydroxide,... [Pg.640]

Mesitylacetic acid has been prepared from 2,4,6-trimethyl-acetophenone by treatment with yellow ammonium sulfide and hydrolyzing the resulting amide with alkali,6 by the dry distillation of 2,4,6-trimethylmandelic acid,7 by heating 2,4,6-trimethyl-phenylglyoxylic acid with hydriodic acid and red phosphorus,8 and by treating mesitylacetonitrile with potassium hydroxide.4... [Pg.68]

Choline(Bilineurine or Trimethyl ethanol Ammonium Hydroxide), (CH3)3.N(OH).CH2.-... [Pg.57]

In 1933 the two still widely accepted mechanisms for nucleophilic displacement reactions were proposed by Hughes, Ingold, and Patel.4 They found that decomposition of quartenary ammonium salts, R4N+Y, to give R3N and RY exhibited two different kinds of kinetic behavior depending on the ammonium salt used. For example, when methyl alcohol was formed from trimethyl-n-decylammonium hydroxide (Equation 4.3), the rate of formation of methyl alcohol was found to be second-order, first-order each in trimethyl-n-decylam-monium cation and in hydroxide ion as in Equation 4.4. On the other hand, the rate of formation of diphenylmethanol from benzhydryltrimethylammonium... [Pg.171]

Trimethyl-[3-azido-5-nitro-4-hydroxy phenyl]-ammonium Hydroxide. See 2-Azido-6-nitro-1,4-ben zoquinone-4-trimethyl imide A640-R... [Pg.692]

Quaternary ammonium salts of dantrolene and clodanolene have been prepared, and the effect of the organic cation on the aqueous solubility has been reported (Ellis et al., 1980). It was reasoned that since the hydantoin moiety in each drug is weakly acidic, a strong base should be found for salt formation. The 13 different quaternary ammonium compounds were therefore used in the hydroxide salt form. The acid-base reaction proceeded rapidly, and the salt products were stable during recrystallization steps. Of the four salts for clodanolene, the aqueous solubilities ranged from 2- to 100-fold that of clodanolene sodium, on a mass basis. Of the 11 salts for dantrolene, the benzyl-trimethyl ammonium salt exhibited comparable solubility to that of dantrolene sodium. Among the other 10 salts were several examples that yielded enhanced solubilities of up to 1000-fold that of the sodium salt. Twelve of the Lfteen salts successfully demonstrated muscle relaxant activity when administered orally. [Pg.421]


See other pages where Ammonium, Trimethyl- -, hydroxide is mentioned: [Pg.481]    [Pg.939]    [Pg.374]    [Pg.251]    [Pg.162]    [Pg.1170]    [Pg.122]    [Pg.83]    [Pg.69]    [Pg.72]    [Pg.84]    [Pg.619]    [Pg.90]    [Pg.859]    [Pg.2320]    [Pg.3476]    [Pg.314]   
See also in sourсe #XX -- [ Pg.317 ]




SEARCH



Ammonium hydroxid

Ammonium hydroxide

Benzyl trimethyl ammonium hydroxide

Trimethyl- ammonium

Trimethyl-[3-azido-5-nitro-4-hydroxy-phenyl ammonium Hydroxide

© 2024 chempedia.info