Potassium bicarbonate nitrite

Dioxane, Potassium nitrite. Potassium bicarbonate, Tetranitromethane Lead acetate. Sodium azide... 

Nitronium tetrafluoroborate. Acetonitrile, Ammonium carbonate. Potassium carbonate. Diethyl ether, Acetone, Ethyl acetate. Butanol Sulfamic acid, Potassium hydroxide. Ethanol, Nitric acid, Sulfuric acid, Acetone, Isopropyl alcohol Dioxane, Potassium nitrite. Potassium bicarbonate, Tetranitromethane Lead acetate, Sodium azide Sodium azide, Lead acetate. Water... 

When a solution of 4,5-diamino-3-picoline (IX-19S, R = H) in sulfuric acid is diazotized with sodium nitrite and then neutralized with potassium bicarbonate, 3-methyl-4,5-pyridotriazole (IX-196, R = H) is obtained. When IX-19S is treated with freshly distilled formic acid, 3-methyl-4,5-pyridoimidazole (IX-197, R = H) results. 

Dissolved mineral salts The principal ions found in water are calcium, magnesium, sodium, bicarbonate, sulphate, chloride and nitrate. A few parts per million of iron or manganese may sometimes be present and there may be traces of potassium salts, whose behaviour is very similar to that of sodium salts. From the corrosion point of view the small quantities of other acid radicals present, e.g. nitrite, phosphate, iodide, bromide and fluoride, have little significance. Larger concentrations of some of these ions, notably nitrite and phosphate, may act as corrosion inhibitors, but the small quantities present in natural waters will have little effect. Some of the minor constituents have other beneficial or harmful effects, e.g. there is an optimum concentration of fluoride for control of dental caries and very low iodide or high nitrate concentrations are objectionable on medical grounds. 

Marchand and co-workers reported a synthetic route to TNAZ (18) involving a novel electrophilic addition of NO+ NO2 across the highly strained C(3)-N bond of 3-(bromomethyl)-l-azabicyclo[1.1.0]butane (21), the latter prepared as a nonisolatable intermediate from the reaction of the bromide salt of tris(bromomethyl)methylamine (20) with aqueous sodium hydroxide under reduced pressure. The product of this reaction, A-nitroso-3-bromomethyl-3-nitroazetidine (22), is formed in 10% yield but is also accompanied by A-nitroso-3-bromomethyl-3-hydroxyazetidine as a by-product. Isolation of (22) from this mixture, followed by treatment with a solution of nitric acid in trifluoroacetic anhydride, leads to nitrolysis of the ferf-butyl group and yields (23). Treatment of (23) with sodium bicarbonate and sodium iodide in DMSO leads to hydrolysis of the bromomethyl group and the formation of (24). The synthesis of TNAZ (18) is completed by deformylation of (24), followed by oxidative nitration, both processes achieved in one pot with an alkaline solution of sodium nitrite, potassium ferricyanide and sodium persulfate. This route to TNAZ gives a low overall yield and is not suitable for large scale manufacture. 

Anhydrous hydrazine, Cyanogen bromide, Isopropyl alcohol, Sodium nitrite, Sodium bicarbonate, Copper nitrate cryohydrate Sodium nitrate, Sodium chloride. Sugar, Charcoal powder Potassium nitrate. Sodium chlorate. Sugar, Charcoal powder Potassium nitrate. Potassium chlorate. Sugar, Charcoal powder Sodium nitrate. Potassium chlorate. Sugar, Charcoal powder 3-Pyridol, Ethylmethylamine, Formaldehyde, Pyridine, Dimethylcarbamoyl chloride. Sodium carbonate. Chloroform, Sodium sulfate, 1,10-Dibromodecane, Acetone, Acetonitrile, Charcoal, Ethyl acetate... 

Acetone and creosote Sodium and potassium nitrites Sodium bicarbonate... 

A new heterocyclic ring system, 5//-pyrazolo[3,4- /]-l, 2,3-thiadiazoles (41), results from a one-pot, two-step reaction of the pyrazolodithiazolium chlorides (29). Sequential treatment of the derivatives (29) with base, sodium dithionite, and sodium nitrite followed by acidification afforded (41) (Scheme 3). For substrates (29a,b) potassium hydroxide was chosen, whilst for (29c,d) sodium bicarbonate was found to be superior. In the latter cases, potassium hydroxide caused appreciable hydrolysis of the ester substituent. A further point of interest is the significant quantity of disulfide (43) which can form on reaction of 6-carboethoxy-5-methylpyrazolodithiazolium chloride (29c). This, however, need not represent a problem since compound (43) can be converted in situ or isolated and converted to the desired product (41c) in good yield (Scheme 4) <84JOCl224>. 

Preparation. Singhla reports an improved procedure for the preparation based on a patent by H.-J. Teuber. Hydroxylamine disulfonate, HON(SOaNa)2, is prepared from sodium nitrite, sodium bicarbonate, and sulfur dioxide and then oxidized with potassium permanganate with pH-control. Manganese dioxide is removed by centrifugation followed by filtration. Fremy s salt separates from the filtrate after addition of KC1 and is recrystallized from 1 N KOH. Material prepared in this way can be stored in the cold for several months. 

Incompat Acids, alkalies, alum, ammonia water, amyl nitrite benzoates betanaphthol, phenol, calomel, chloral hydrate, copper sulfate, ferric chloride ferrous sulfate chromium trioxide (chromic acid), cinchona alkaloids, hydrocyanic acid iodides iodine Lead subacetate mercuric chloride, orthoform potassium permanganate, resorcinol, sod. bicarbonate sod. salicylate (in powder) soln arsenic and mercury iodide, spirit nitrous ether (unless prescribed with sod, bicarbonate), syrup ferrous iodide, tartar emetic tannic acid, thymol, urethane, infusions of catechu, cinchona, rose leaves and uva ursi tinctures of catechu, ferric chloride, cinchona, hamanielis iodine, kino, and rhubarb. 

HCI = hydrochloric acid HNO3 = nitric acid ICP = inductively coupled argon plasma spectroscopy KNO3 = potassium nitrite MIBK = methyl isobutyl ketone NAA = neutron activation analysis NH 4HCO3-DTPA = ammonium bicarbonate-diethyl enetriaminepentaacetic acid NR = not reported... 

Phosphorus Trichloride Potassium Bisulfide Potassium Carbonate Potassium Chloride Potassium Chromate Potassium Cyanide Potassium Iodide Polassium Permanganate Potassium Phosphates Potassium Sultale Sal Ammoniac Sal Soda Sea Water Silver Nitrate Soda Ash Sodium Alummate Sodium Acid Sulfate Sodium Bicarbonate Sodium Bisullale Sodium Bisulfite Sodium Borate Sodium Carbonale Sodium Chloride Sodium Chromate Sodium Cyanide Sodium Oichromale Sodium Fluoride Sodium Nitrate Sodium Nitrite... 

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