Hydrogen Chloride (HCl)
Hydrogen chloride (HCl) is a toxic gas which -because of its high water-solubility- can be detected with electrochemical cells for a very short time only and this with possible drifts. Electrochemistry allows only a derivation of this gas - this explains why the principle is economical in comparison with other ones. Diluted in water, it produces hydrochloric acid. An intensive technical consultation about the measurement possibilities offered is recommended.