Potassium sulphamidate

As will be seen by comparing the formulie of sulphuric acid, S02(OH)2, and sulphamide, S02(NH2)2, hydroxylamineisosulphonic acid is the amide corresponding with permonosulphuric acid, although it has not been directly prepared from this acid. In agreement with this relationship, however, hydroxylamineisosulphonic acid or amidopermonosulphuric acid possesses marked oxidising properties, readily liberating iodine from potassium iodide. 

Regnault s later research was almost exclusively in physics the specific heats of solids and gases, densities and compressibilities of gases, properties of steam, etc., and his results in this field are very accurate. He became professor of physics in the College de France and director of the porcelain factory at Sevres (1854). In the war of 1870 his son was killed in battle and his laboratory at Sevres was deliberately wrecked and his papers destroyed by the Prussian army. His chemical publications are on Dutch liquid, etc., the aldehydene theory (see p. 355), the identity of equisitic and maleic acids, the action of steam on heated metals and sulphides, sulphonaphthalic acid, and the action of sulphur trioxide on organic substances,methyl sulphate, mineral combustibles, alkaloids, diallage, potassium and lithium micas, the action of chlorine on Dutch liquid, sulphuryl chloride and sulphamide, chlorides of carbon, determination of carbon in cast iron and steel, action of chlorine on ethers, sulphuryl chloride, report on the Marsh test, respiration (with... 

---