Amidosulfonic acid

Chlorosulfonic acid Amidosulfonic acid (sulfamic acid) S03 complexes... [Pg.226]

Spray solution 3 Dissolve 500 mg ammonium amidosulfonate (amidosulfonic acid ammonium salt) in 100 ml water. [Pg.55]

Hydrochloric Acid Vapor-Sodium Nitrite/Hydrochloric Acid-Amidosulfonic Acid-N-(l-Naphthyl)-ethylenediamme... [Pg.790]

The chain in mercury amidosulfonic acid is shown below (I), and the... [Pg.19]

The winning of the alkaloids is generally achieved by the usual procedures modified to suit the plant source and the properties of the bases. Pais el al. 17), when working with Panda oleosa, moistened the dried and ground plant material with 10% aqueous ammonia and 1% aqueous sodium carbonate followed by extraction with ether. The concentrated extract was shaken with aqueous amidosulfonic acid and the bases regenerated from the aqueous phase by ammonia. An ether solution of the liberated bases frequently yields crystals upon standing but these are virtually always a mixture of bases. [Pg.167]

Using a new process, ADN can be prepared in a very environmentally friendly manner (without the use of chlorinated organic solvents) by the direct nitration of salts (potassium or ammonium) of sulfamic acid (amidosulfonic acid, H2N-S03H) using mixed acid (HN03/H2S04) ... [Pg.243]

Sulfamic acid (amidosulfonic acid) itself can be obtained simply from urea and pyrosulfuric acid (disulfuric acid, H2S207) ... [Pg.243]

N-Free A process for removing nitrates from industrial wastewaters, N-Free has two stages. In the first, nitrates are reduced to nitrites using hydrazine and a fixed-bed copper catalyst. In the second, the nitrite is reduced to elemental nitrogen using amidosulfonic acid as the reductant. Developed by Sumitomo Metal Mining Company and piloted in 2002. [Pg.254]

Laboratory syntheses of nitrous oxide include the decomposition of hyponitrous acid (236) or nitramide (314), the reaction of nitrous acid with hydroxylamine (146) or hydrazoic acid, (147) and the reaction of amidosulfonic acid with concentrated nitric acid (148) ... [Pg.3052]

DOT UN 2967 mf H3NO3S mw 97.10 PROP White crystals nonhygroscopic solid. Mp 200° (decomp), bp decomp, d 203 12°. Very sol in H2O, liq NH3, formamide. SYNS AMIDOSULFONIC ACID AMIDOSULFURIC ACID AMINOSULFONIC ACID KYSELINA AMIDOSULFONOVA (CZECH) KYSELINA SULFAMINOVA (CZECH) SULFAMIDIC ACID SULPHAMIC ACID pOT)... [Pg.1286]

An alternative synthesis route for acesulfame potassium starts with the reaction between diketene and amidosulfonic acid. In the presence of dehydrating agents, and after neutralization with potassium hydroxide, acesulfame potassium is formed. [Pg.5]

Fig. 3-84. Separation of various monocarboxylic acids at an anion exchanger IonPac AS6 (CarboPac). - Eluent 0.0017 mol/L NaHCOj + 0.0018 mol/L Na2C03 flow rate 1 mL/min detection suppressed conductivity injection 50 pL solute concentrations 3 ppm fluoride (1), 40 ppm acetic acid (2), 20 ppm glycolic acid (3), 10 ppm a-hydroxyisocaproic acid (4), 20 ppm formic acid (5), oxamic acid (6), methanesulfonic acid (7), amidosulfonic acid (8), and a-ketoisocaproic acid (9).

As Hantzsch and Stuer (62) suggested, trimeric sulfimide (LXXVa) should have an isomer (LXXVb), to which the name sulfanuric acid has been given. However, this acid, like sulfimide, cannot be isolated as the hydrogen compound itself, though the acid chloride (LXXVI) is readily accessible. It can be made by the reaction of amidosulfonic acid with PCI5 and thermal decomposition of the product (73, 74)-... [Pg.184]

It is striking that compound (LXXVa) is clearly much more stable than the isomer (LXXVb) and that hydrolysis leads to different products. Whereas sulfimide in an acid medium gives sulfuryl amide, amidosulfonic acid and sulfuric acid, the hydrolysis of sulfanuric acid leads to imidosulfamide (86). [Pg.185]

When sulfuryl amide or imidodisulfamide is heated with strong sodium hydroxide solution, the sodium salt of amidosulfonic acid results. The free acid itself may be prepared in various ways for example, from urea and sulfuric acid, from many adducts of sulfur trioxide and ammonia, from hydroxylammonium salts and sulfur dioxide, or from SO and acetoxime. Amidosulfonic acid, which is colorless and melts at 205° with decomposition, has, as Baumgarten supposed (13), the structure (LXXXVII). [Pg.188]

Amidosulfonic acid is a strong monobasic acid in water but is dibasic in ammonia (34) and reacts, for example, with sodium, forming the salt NaNH SOsNa. The two hydrogen atoms on nitrogen are readily substituted if one allows it to react with mercury(II) salts one can, for example, prepare a salt HgN—S08Na or HgN—S03K. [Pg.188]

The derivatives of amidosulfonic acid are very numerous. The acid halides will be considered particularly here. Amidosulfonic acid chloride may be prepared in the following way ... [Pg.189]

Chlorosulfonyl isocyanate (LXXXI) is formed in the reaction of eyanogen chloride with sulfur trioxide in a 1 1 molar ratio (57, 58), and this is saponified by water vapor (59) or formic acid (2) to amidosulfonic acid chloride (LXXXIX), H2NS02C1. It is colorless and crystalline and melts at 40-41°. The reaction with water is explosive, amidosulfonic acid and HC1 being formed. [Pg.189]

From amidosulfonic acid chloride the corresponding acid fluoride (XC) may be made by reaction with potassium fluoride in boiling acetonitrile (7), or by the reaction of (LXXXVI) with NaF followed by careful hydrolysis (70). Amidosulfonic acid fluoride is colorless, melts at 8°, and is soluble... [Pg.189]

Purely inorganic derivatives of amidosulfonic acid are accessible through the reaction of H3N—SO3 with PCU (73, 74) in which, as already mentioned (compare p. 184) the compound (XCI) results. [Pg.189]

The compound (XCI) is naturally, as in an acid chloride, sensitive to hydrolysis. With water it yields amidosulfonic acid and phosphoric acid quantitatively the high stability of the nitrogen-sulfur bond, which is manifestly greater than that of the phosphorus-nitrogen bond, is clear from these results. [Pg.189]

Thionyl chloride reacts in an analogous manner to PCU with mercury amidosulfonate (91), though not with free amidosulfonic acid. Thionyl amidosulforiates (XCII) are quite stable and are clearly polymers. [Pg.190]

In addition, PPA shows a good chemical resistance. In particular, the resistance to decalcifying agents such as amidosulfonic acid and to hot oils, battery acid, and brake fluid has been pointed out. ... [Pg.403]

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