Ammonia Amyl nitrate

Feuer and co-workers ° conducted extensive studies into alkaline nitration with nitrate esters, exploring the effect of base, time, stoichiometry, concentration, solvent, and temperature on yields and purity. Reactions are generally successful when the substrate a-proton acidity is in the 18-25 p A a range. Alkoxide bases derived from simple primary and secondary aliphatic alcohols are generally not considered compatible in reactions using alkyl nitrates. Optimum conditions for many of these reactions use potassium tert-butoxide and amyl nitrate in THF at —30 °C, although in many cases potassium amide in liquid ammonia at —33 °C works equally well. 

Also Feucr and Friedman [104] in a similar way obtained phenylnitro methane derivatives with a yield of 40-55% by experimenting with amyl nitrate and KNHj in liquid ammonia at -33 C on o- and p-substituted toluene RC6H4CH3 on condition that the substituent is an electron attracting group, for example R = CN, SOj etc. 

Ammonias, compound, 205 Ammonium, 144 acetate, I4.i bromide. 145 carbonates, 146 chloride, 145 compounds, 144 hydrate. 144 iodide, 145 nitrate, 145 purpnrale, 263 salts of, 145 sulphates, 145 sulphides, 145 sutphydrate, 145 theory, 144 urates, 260 Amorphism, 27 Amphoteric elements, 105 Amygdalin. 829 Amyl nitrate, 199 nitrite. 199... 

If it is heated alone at 160°, ammonia comes off rapidly, the aniline and phenylisocyanate may be detected by their odor but they combine in large part to form 5ym.-diphenyliu ea which crystallizes out from the hot liquid, and cyanic acid may be detected by means of silver nitrate in the water with which the apparatus is washed out after the experiment. When an aqueous solution of phenylurea is distilled, aniline may be detected in the distillate and 5ym.-diphenylurea crystallizes from the boiling liquid. By heating urea with the amine or with its hydrochloride at 160°, or by refluxing urea in aqueous solution with the amine or its hydrochloride, we have prepared sym.-6i-o- and />-tolyl, di-a- andjS-naphthyl, dimethyl, di-w-butyl, di-w- and i5 -amyl and dibenzylureas in satisfactory yield. 

Willis 93) extracted lead directly from 200 ml of urine with APDC into 1.5 ml of methyl-n-amyl ketone. He was able to determine as little as 0.02 ppm of lead. Kopito and Shwachman 141>, on the other hand, co-precipitate the lead from urine with bismuth nitrate by adding ammonia. The precipitated bismuth hydroxide is dissolved in acid and this solution is aspirated. Coprecipitation of the lead is not quantitative, and so standards should be prepared in the same manner. It should be possible to employ this procedure with protein free filtrates of blood without the necessity of close pH control. 

Diammino-uranyl Nitrate, [U02(NH3)2](N03)2, is formed when dry gaseous ammonia is passed into a boiling solution of dry uranyl nitrate in amyl alcohol until the liquid is decolorised. A voluminous yellow precipitate is formed, which is collected and dried in vacuo over sulphuric acid. The product is only freed from amyl alcohol by repeated evacuation over fresh quantities of sulphuric acid. It is a yellow amorphous powder, which is insoluble in ether and amyl alcohol. If the diammine is prepared in ether the same reaction takes place, and, after evacuation over sulphuric acid, a bright yellow powder is obtained of composition [UO2(NH3)2](NO3)2.C2H10O this, on keeping in vacuo, gradually loses ether, yielding the diammino-nitrate. 

FIG. 1 Conductance curves for simple electrolytes (1) iodic acid in water (2) sodium bromate in ammonia (3) sodium iodide in amyl alcohol (4) tetraisoamyl-ammonium nitrate in ethylene dichloride (5) potassium amide in ammonia (different curves are displaced vertically). (From Ref. 31.)... 

Aminobiphenyl, 4-Aminocarb Aminopyridine, 4-Amiton Amitrole Ammonia Ammonia solutions Ammonium acetate Ammonium benzoate Ammonium bicarbonate Ammonium bisulphite Ammonium carbamate Ammonium carbonate Ammonium chlorate Ammonium chloride Ammonium chromate Ammonium citrate Ammonium dichromate Ammonium fluoride Ammonium hydrogen fluoride Ammonium hydrogen sulfate Ammonium hydroxide Ammonium nitrate Ammonium nitrate fertihzers Ammonium oxalate Ammonium phosphates Ammonium picrate Ammonium sulfamate Ammonium sulfate Ammonium sulfide Ammonium sulfite Ammonium tartrate Amyl acetate... 

Aluminum Acetate Aluminum Chloride Ammonia (anhydrous) Ammonium Bicarbonate Ammonium Carbonate Ammonium Chloride Ammonium Hydroxide Ammonium Nitrate Ammonium Oxalate Ammonium Persulfate Ammonium Phosphate Ammonium Sulfide Amyl Acetate Arsenic Acid Azo Dyestuffs... 

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