Thiocyanic acid is a chemical compound with the formula HSCN which exists as a tautomer with isothiocyanic acid (HNCS). The iso- form tends to dominate with the material being about 95% isothiocyanic acid in the vapor phase.
It is a weak acid, bordering on strong, with a pKa of 1.1 at 20°C and extrapolated to zero ionic strength.
近义、反义、联想词
近义词
n.
acid
英英词典
thiocyanic acid n.
an unstable acid that can be obtained by distilling a thiocyanate salt
![\ KSCN+KHSO_4\to HSCN+K_2SO_4](/Images/godic/202502/16/8d791296333b42e2737d0eedfcf66dc04728.png")