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Ammonia reaction with hydrochloric acid

ACIDO METACRILICO (Spanish) (79-41-4) Combustible liquid (flash point 152°F/ 67°C oc). A reducing agent. Violent reaction with oxidizers, strong acids, alkalis. Unless inhibited (100 ppm of the monomethyl ether of hydroquinone is recommended), can polymerize violently. Polymerization can be caused by elevated temperatures, peroxides, sunlight, or hydrochloric acid. Incompatible with ammonia, amines, isocyanates, alkylene oxides, epichlorohydrin. Attacks metals, natural rubber, neoprene, nitrile, and some plastics including PVC and polyvinyl alcohol. The uninhibited monomer vapor may block vents and confined spaces by forming a solid polymer material. [Pg.31]

The pH is adjusted to 5.5 and the water phase separated and extracted with additional ether in order to remove the surplus dimethyl anilin. After addition of an excess of ammonia to the solution, the reaction product, N-methylpipecolic acid 2,6-dimethyl anilide, is recovered by extraction with isoamyl alcohol. The isoamyl alcohol solution is evaporated to dryness, the product dissolved in dilute hydrochloric acid, treated with charcoal and reprecipitated with NaOH. N-methylpipecolic acid 2,6-dimethyl anilide is obtained in crystalline form. [Pg.941]

Thebaine is dissolved in aqueous formic acid and treated with 30% HjO neutralization with aqueous ammonia gives 14-hydroxycodeinone. It is hydrogenated to give oxycodone. 90 ml of concentrated hydrobromic acid are heated to 90°C. 9 grams of 14-hydroxydi-hydrocodeinone (oxycodone) are then added under stirring and the mixture is quickly heated to 116°C and kept at this temperature under reflux condenser for 20 minutes, with continued stirring. The resulting brown solution Is diluted with about 90 ml of water and chilled with ice. Aqueous 10% sodium hydroxide solution is now added to alkaline reaction and the liquid is extracted 3 times with 100 cc portions of chloroform. The layers are separated and the aqueous phase is fiitered and acidified by the addition of concentrated aqueous hydrochloric acid, treated with charcoal and filtered. [Pg.1146]

Purine derivatives (e. g. xanthine) are oxidized by chloramine T in the presence of hydrochloric acid and form purple-red anunonium salts of purpuric acid (murexide) with ammonia. Whether the murexide reaction is also the cause of the fluorescence is open to question. [Pg.95]

A reaction of rather less general application, but one which produces valuable intermediates, is the treatment of dithiosalicylamide and its A-substituted derivatives with phosphorus pentachloride. Thus, A.A-diethyldithiosalicylamide (20) yields 3-chloro-2-ethyl-l,2-benz-isothiazolium chloride (21).14-16 This salt (21) is a versatile compound for example, heating it with diethylamine gives 3-diethylamino-l,2-benzisothiazole (22)16, treatment with base yields 2-ethyl-l,2-benzisothiazolinone (23), and reaction with ammonia, followed by hydrochloric acid, affords 3-ethylamino-l,2-benzisothiazole (24).14 This final reaction involves an interesting rearrangement which will be discussed in more detail in Sections II, C, 2 and II, C, 3. [Pg.48]

Distillation test Free thiocyanic acid, HSCN, can be liberated by hydrochloric acid, distilled into ammonia solution, where it can be identified with iron(III) chloride (cf. reaction 6). This test may be applied to separate thiocyanate from mixtures with ions which would interfere with reaction 6. [Pg.318]

The precipitate is soluble in ammonia solution and in solutions of caustic alkalis. Large quantities of hydrochloric acid interfere with the test and should preferably be removed by evaporation to a small volume with excess concentrated nitric acid. Reducing agents, such as sulphides, sulphites, hexacyano-ferrate(II)s, and tartrates, seriously affect the reaction, and should be destroyed before carrying out the test. [Pg.355]

Direct methods for making the complex starting with cobalt(II) chloride involve preparation of a carbonatotetra-ammine salt by air oxidation and subsequent reaction with ammonia and hydrochloric acid. The procedure is time-consuming but gives excellent yields. A more rapid and simpler synthesis, which utihzes the reaction of hydrogen... [Pg.160]

B. 1,2-Bis n-butylthio)benzem. In a 1-1., round-bottomed, three-necked flask fitted with a reflux condenser, a mechanical stirrer, and a thermometer which reaches into the reaction mixture is placed a solution of 59.0 g. (0.25 mole) of o-dibromobenzene in a mixture of 250 ml. of quinoline and 80 ml. of pyridine. To this solution is added 84.0 g. (0.55 mole) of cuprous -butylmer-captide, and the mixture is stirred and heated under reflux (Note 5) for 3.5 hours (Note 6). Heating is stopped and the reaction mixture is allowed to cool to about 100°. It is then poured into a stirred mixture of 1500 g. of ice and 400 ml. of concentrated hydrochloric acid occasional stirring is continued for about 2 hours. The aqueous part is then decanted from the dark brown, gummy residue and is extracted twice with 400 ml. portions of ether. The ether extract is added to the residue, and the resulting mixture is stirred for about 5 minutes. The ether solution is then decanted from the residue and is filtered. The residue is extracted twice more with 400-ml. portions of ether (Note 7). The combined ether extract is washed twice with 100-ml. portions of 10% hydrochloric acid, once with water, and twice with 100-ml. portions of concentrated ammonia (Note 8). After a final wash with water, the ether solution is dried over anhydrous potassium carbonate. The potassium carbonate is collected on a filter, and the ether is removed from the filtrate by distillation. The remaining brown oil is distilled in vacuum, giving a pale orange oil, b.p. 123-124°/0.3 mm., d 1.5684. The yield is 46.5-56.0 g. (73-87%) (Note 9). [Pg.23]

It is insoluble in water, ammonia, hydrochloric, and sulfuric acid, but is decomposed by nitric acid. Reaction with oxygen occurs at 650-700 °C and thermal decomposition in vacuum starts at 600-620 °C. [Pg.167]

ANTIMONY TRICHLORIDE (10025-91-9) Cl3Sb Contact with moist air forms corrosive hydrogen chloride fumes. Contact with water, steam forms hydrochloric acid and toxic antimony oxychloride. Aqueous solution is an acid. Violent reaction with ammonia, strong bases, amines, amides, and inorganic hydroxides alkali metals finely divided aluminum potassium, sodium. Attacks metals, releasing flammable... [Pg.91]

CHLOROMETHYL SULFONE (124-63-0) Combustible liquid (flash point >212°F/ >100°C). Reacts with water, acid, or acid fumes, forming hydrochloric acid. Violent reaction with ammonia, caustics, strong oxidizers. Aqueous solution incompatible with sulfuric acid, ammonia, aliphatic amines, alkanolamines, bases, isocyanates, alkylene oxides, epichlorohydrin. Attacks metals in the presence of moisture. [Pg.299]


See other pages where Ammonia reaction with hydrochloric acid is mentioned: [Pg.309]    [Pg.635]    [Pg.337]    [Pg.408]    [Pg.602]    [Pg.2581]    [Pg.130]    [Pg.597]    [Pg.243]    [Pg.95]    [Pg.465]    [Pg.199]    [Pg.76]    [Pg.89]    [Pg.90]    [Pg.335]    [Pg.488]    [Pg.860]    [Pg.867]    [Pg.1035]    [Pg.342]   
See also in sourсe #XX -- [ Pg.86 ]

See also in sourсe #XX -- [ Pg.659 , Pg.662 , Pg.665 ]




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Acid ammonia

Acids hydrochloric acid

Ammonia acidity

Ammonia reaction

Hydrochloric

Hydrochloric acid

Hydrochloric acid, reaction

Hydrochloric reaction with

Reaction with ammonia

Reaction with hydrochloric acid

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