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Ammonia naming

As shown in the previous section, N-alkyl nitroanilines 23 are obtained in the reaction of pyridone 1 with ketones 22 in the presence of amines. In this case, amines are introduced as the dialkylamino substituents. On the contrary, different reactivity is observed when ammonia is used instead of amines. The TCRT reaction proceeds to afford 2,3-dialkyl-5-nitropyridines 24 upon treatment of pyridone 1 with ketones 22 in the presence of ammonia (Table 2) [42,43]. The C4 - C5 - C6 unit is derived from pyridone 1, the C2 - C3 unit is derived from ketone, and the ring nitrogen (Nl) is from ammonia, namely the new ring consists of three components. As electrophilic nitration of pyridines is quite difficult, the present TCRT will be an alternative method for preparation of nitropyridine derivatives. [Pg.55]

Iron-zeolite catalysts present an important type of materials with broad application for selective oxidations (i.e. benzene hydroxylation) and environmentally important processes, like SCR reduction of NOx or N2O decomposition. In the case of SCR reaction they could provide a convenient substitution of the vanadia-based system using environmentally problematic ammonia, by more convenient paraffin as a reducing agent. Unfortunately, the efficiency in utilization of paraffin is inferior in comparison to ammonia, namely due to paraffin nonselective oxidation by oxygen catalyzed by unspecified iron-oxide type species typically present in the iron-zeolite catalysts. The mostly used preparation processes include impregnation from water solutions, ion exchange procedures, both in water solution or solid state, as well as gas phase CVD. [Pg.889]

A compound, in which two carboxyl groups of amino acids are attached to ammonia, namely, diglycinimide,... [Pg.36]

Name and write the formula for a compound that would be considered an acid in liquid ammonia. Name and write the formula for a compound that would be considered a base in liquid ammonia. [Pg.1082]

Write the equation for the reaction between propanoic acid and ammonia. Name the product and give its functional group. [Pg.661]

Fig. 18 Critical lines for two alkanes dissolved in ammonia, namely nonane (C9H20, lower set of points) and hexadecane (C16H34, upper set of points). MC predictions for two choices for the effective dipole moment strength of NH3 are included p = 1.482 D is the experimental value [130] of the true dipole moment, p = 1.65 D is an enhanced value, to be used in the Stockmayer potential (6). Solid circles are experimental data [272-274]. From Mognetti et al. [55]... Fig. 18 Critical lines for two alkanes dissolved in ammonia, namely nonane (C9H20, lower set of points) and hexadecane (C16H34, upper set of points). MC predictions for two choices for the effective dipole moment strength of NH3 are included p = 1.482 D is the experimental value [130] of the true dipole moment, p = 1.65 D is an enhanced value, to be used in the Stockmayer potential (6). Solid circles are experimental data [272-274]. From Mognetti et al. [55]...
The concept of two-state systems occupies a central role in quantum mechanics [16,26]. As discussed extensively by Feynmann et al. [16], benzene and ammonia are examples of simple two-state systems Their properties are best described by assuming that the wave function that represents them is a combination of two base states. In the cases of ammonia and benzene, the two base states are equivalent. The two base states necessarily give rise to two independent states, which we named twin states [27,28]. One of them is the ground state, the other an excited states. The twin states are the ones observed experimentally. [Pg.330]

When acetone is condensed with ethyl cyanoacetate in the presence of a solution of anhydrous ammonia in absolute alcohol at —5°, the ammonium salt of the dicyano-imlde (I) is precipitated. Upon dissolving this salt in water and adding excess of concentrated hydrochloric acid, the crystalline dicyano-imide (II) is obtained. Hydrolysis of the last-named with strong sulphuric acid affords p p dimethylglutaric acid (III). [Pg.876]

Volatile hydrides, except those of Periodic Group VII and of oxygen and nitrogen, are named by citing the root name of the element (penultimate consonant and Latin affixes. Sec. 3.1.2.2) followed by the suffix -ane. Exceptions are water, ammonia, hydrazine, phosphine, arsine, stibine, and bismuthine. [Pg.217]

Neutral and Cationic Ligands. Neutral and cationic ligands are used without change in name and are set off with enclosing marks. Water and ammonia, as neutral ligands, are called aqua and ammine, respectively. The groups NO and CO, when linked directly to a metal atom, are called nitrosyl and carbonyl, respectively. [Pg.222]

Two well-known salts of ammonia (qv) are the normal ammonium fluoride [12125-01 -8] NH F, and ammonium bifluoride [1341 -49-7] NH4HF2 the latter is sometimes named ammonium acid, or hydrogen difluoride. Much of the commercial interest in the ammonium fluorides stems from their chemical reactivity as less ha2ardous substitutes for hydrofluoric acid. [Pg.148]

Dry basis natural mbber compound recipe, in part by wt high ammonia natural latex mbber concentrate, 100.0 potassium hydroxide, 0.5 Nacconal 90F (alkylarenesulfonate (AHied Chemical Co.)), 1.0 zinc oxide, 3.0 sulfur, 1.0 ZMBT, 1.0 zinc diethyldithiocarbamate (ZEDC) (trade names Ethazate (Uniroyal, Inc.), Ethyl Zimate (R. T. Vanderbilt), 0.3 antioxidant, as indicated. Wet-basis natural mbber compound recipe, in parts by wt natural latex (NC 356), 167.9 potassium hydroxide, 2.5 Nacconal 90F, 5.0 zinc oxide, 5.45 sulfur, 1.65 ZMBT, 2.0 ZEDC, 2.0 antioxidant, as indicated. AH films poured from freshly mixed compounds, dried overnight in place, then lifted and dried 1 h in air at 50°C before curing. [Pg.256]

This eoiTesponds to tlie total weight of primary suhstanees neeessary as expressed hy the overall proeess equation, namely, 1 kg of ammonia and 16 kg of air. The total theoretieal heat liherated amounts to 21,660 kJ or 5,855 kJ/kg nitrie aeid. [Pg.89]

The amines are a group of compounds with the general formula R-NHj, and all the common amines are hazardous. As a class the amines pose more than one hazard, being flammable, toxic, and, in some cases, corrosive. The amines are an analogous series of compounds and follow the naming pattern of the alkyl halides and the alcohols that is, the simplest amine is methyl amine, with the molecular formula of CH NHj. Methyl amine is a colorless gas with an ammonia-like odor and an ignition temperature of 806°F. It is a tissue irritant and toxic, and it is used as an intermediate in the manufacture of many chemicals. Ethyl amine is next in the series, followed by propyl amine, isopropyl amine, butyl amine and its isomers, and so on. [Pg.202]

In order to synthesize an optimal MEN for intercepting the off-gas condensate, we constnict the pinch diagram as shown in Fig. 4.9. Since the three MSA s lie completely to the left of the rich stream, they are all thermodynamically feasible. Hence, we choose the one with the least cost ( /kg NH3 removed) namely the resin. The annual operating cost for removing ammonia using the resin is ... [Pg.92]

Calomel, derived from the Greek words icaX6-g (beautiful) and fXsXaf (black), seems an odd name for a white solid. It might arise from the colour of the material obtained when Hg2Cl2 is treated with ammonia this is a product of variable composition (see below) which owes its colour to the presence of metallic mercury. Other more fanciful derivations are listed in the Oxford English Dictionary 2, 41 (1970). [Pg.1213]

Oxo 5-imino-2,S,J, 5-tetrahydro-l,, 4-triazine 6-Azacytosine) Substances of this type were not studied by the earlier workers, and the first representative of this group to be investigated was 3-oxo-5-imino-2,3,4,5-tetrahydro-l,2,4-triazine (122) which should bear the name 6-azacytosine. It was prepared by Falco et al. by treating 3-thioxo-5-oxo-2,3,4,5-tetrahydro-l,2,4-triazine (88) with alcoholic ammonia. Some iV-substituted derivatived were prepared anal-ogously. ... [Pg.232]

Aznmoniak, n. ammonia (in old names of salts equivalent to ammonium, as salzsaures —, ammonium chloride) ammoniac, -alaun, m. ammonia alum. [Pg.21]

Similar to the pH meter, gas meters employ specific ion electrodes. The electrodes generate a potential proportional to the activity of a specific ion in solution. The calibration is achieved in standard solution and results read in mV or concentration in mg/L or ppm on the meter. The water can be adapted to monitor the concentration of carbon dioxide, hydrogen sulfide, ammonia, chloride, calcium, potassium and sodium to name a few. [Pg.1317]

Authorities names given in full in the text. EPRI values depend on pressure. Depends on pH and sodium to phosphate ratio. Depends on PO4 and ammonia. CEGB also specified a minimum NaOH. Depending on pressure. [Pg.853]

The treatment of kasuganobiosamine with dimethyl ester of oxalic acid followed by concentrated aqueous ammonia gave two kinds of amides. The amide (11a) with pK a 7.6 was identical with the amide of kasugamycinic acid, which was prepared from kasugamycinic acid by treatment with anhydrous hydrogen chloride-methanol followed by concentrated aqueous ammonia. The other isomer (lib) with pK a 7.8, was named amide of isokasugamycinic acid. [Pg.34]


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See also in sourсe #XX -- [ Pg.63 ]

See also in sourсe #XX -- [ Pg.40 ]

See also in sourсe #XX -- [ Pg.136 ]




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