Nitrosylsulfuric acid is the chemical compound with the formula NOHSO4. It is a colourless solid that is used industrially in the production of caprolactam. ==Synthesis and reactions== A typical procedure entails dissolving sodium nitrite in concentrated sulfuric acid in an ice bath: The molecule can also be viewed as the mixed acid anhydride of s...
NOHSO4 Molar mass: 127.07664
a clear, straw-colored, oily, corrosive liquid, HNOS, used chiefly in the manufacture of dyes.