Barium hydroxide, it absorbs very little CO in aqueous solutions and is therefore insensitive to atmospheric fluctuations. This property is used in calibrating pH equipment. Volatile barium compounds burn with a green to pale green flame, which is an efficient test to detect a barium compound. The color results from spectral lines at 455.4, 493.4, 553.6, and 611.1 nm. Organobarium compounds are a growing field of knowledge: recently discovered are dialkylbariums and alkylhalobariums. Barium found in the Earth's crust is a mixture of seven primordial nuclides, barium-130, 132, and 134 through 138. Barium-130 undergoes very slow radioactive decay to xenon-130 by
Sodium chlorate The Chloralkali process is an industrial process for the electrolytic production of sodium hydroxide and chlorine. It can also be synthesized by passing chlorine gas through a solution of sodium hydroxide. It is then purified by crystallization. The main commercial use for sodium chlorate is for making chlorine dioxide (ClO). The largest application of ClO, which accounts for about 95% of the use of chlorate, is in bleaching of pulp. All perchlorate compounds are produced industrially by the oxidation of solutions of sodium chlorate by electrolysis. Sodium chlorate is used as a non-selective herbicide. It is considered phytotoxic to all