Nitrosyl hydrogen sulfate

Nitrosylsulfuric Acid (Nitroso, Nitrosyl Sulfate, Nitrosulfuric Acid, Nitroxylsulfuric Acid, Nitro-sulfonic Acid, Nitrosyl Hydrogen Sulfate, Nitro Acid Sulfite). HNOs S, NO HS03, HNOS04, ONOSO3H, mw 127.08, N 11.02%, colorl prisms mp, decomps 73.5°. In moist air the crysts decomp with the formation of sulfuric and nitric... 

Nitric oxide readily loses an electron to form nitrosyl or nitrosonium ion, NO , which is known to form salts, such as nitrosyl hydrogen sulfate, (N0) (HS04) or nitrosyl tetrafluoroborate, (N0) (BF4). ... 

Synonyms nitrosyl sulfate chamber crystals nitroxylsulfuric acid nitroso-sulfuric acid nitrosyl hydrogen sulfate... 

N 16.09% plts (from xylene), mp 283° when pure 285-86° sol in hot glac acet ac, xylene acet si sol in ale diffc sol in benz prepd by nitrating 2,6-dinitrodibenzofuran with nitrosyl hydrogen sulfate (Refs 2,4,6 7) 1,3,7,9-Tetranitrodibenzofurari (called 1.3.6.8-Tetranitro-diphenylenoxyd in Ger), dk-brn ndls (from acet + ale), mp 252.5° 255° prepd by heating 3,5,3, 5 l-tetranitro-2,2l -dihydroxy biphenyl with p-toluenesulfonyl-chloride dimethylaniline on a w bath (Refs 1,3,5,6 7)... 

The lead chamber and tower processes were used into the 20,h century. Unfortunately their H2S04 strength was limited to below about 70 mass% H2S04. Above 70% H2S04, the product acid contained stable nitrosyl hydrogen sulfate which made it unsuitable for many purposes. 

Nitrosyl hydrogen sulfate adds to aikenes at -40 C in liquid SO , in Markovnikov fashion giving 2-sulfato-oximes (37-84%).Reactions of nitrogen oxides with aikenes are usually complex, yet some have limited industrial, rather than laboratory, importance. Nitryl tetrafluoroborate in acetic anhydride at -65 to -45 C adds Markovnikov fashion to aikenes, with only fair stereoselectivity, giving 3-ni-troacetates in 36-40% yields. Nitryl fluorosulfonate adds to perfluoroalkenes in fluorosulfonic acid/ffeon-113 giving 63-92% 0-nitroperfluoroalkyl fluorosulfonates. 

SYNS CHAMBER CRYSTALS NITRO ACID SULFITE NITROSONIUM BISULFITE NITROSYL HYDROGEN SULFATE NITROSYL SULFATE SULFURIC ACID, MONOANHYDRIDE with NITROUS ACID... 

A mixture of 127 g. of nitrosyl hydrogen sulfate (see p. 406) and 58.5 g. of well-dried sodium chloride is prepared in a half-liter flask equipped with a ground glass joint and a gas outlet tube. The flask is warmed on a water bath and the gases are led into a... 

At BASF, cyclododecyl carbinol is formed by an oxo synthesis addition reaction of CDT with CO and H2, and this, through fusion with potash, is further oxidized to cyclododecan monocarboxylic acid, which is then transformed into a lactam with nitrosyl hydrogen sulfate. 

If NO loses 1 electron, it forms the relatively stable nitrosyl ion, NO" ", which is isoelectronic with the stable gases Ng and CO. Known compounds of this ion are nitrosyl perchlorate, NO CIO ", and nitrosyl hydrogen sulfate, N0" HS04 . 

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