Preferred Label : electrolytic hygrometer;
IUPAC definition : hygrometer using a hygroscopic substance (for example, diphosphorus pentaoxide, P
sub 2 /sub O sub 5 /sub ) which is transformed into an electrolyte (phosphoric acid,
H sub 3 /sub PO sub 4 /sub ) in contact with the moisture in the gas. The electrolyte
(phosphoric acid) is electrolysed continuously and the electrolysis current is measured.
At a constant flow of the gas to be analysed, the electrolysis current is a linear
function of the water concentration.;
Origin ID : E01972;
See also
hygrometer using a hygroscopic substance (for example, diphosphorus pentaoxide, P
sub 2 /sub O sub 5 /sub ) which is transformed into an electrolyte (phosphoric acid,
H sub 3 /sub PO sub 4 /sub ) in contact with the moisture in the gas. The electrolyte
(phosphoric acid) is electrolysed continuously and the electrolysis current is measured.
At a constant flow of the gas to be analysed, the electrolysis current is a linear
function of the water concentration.
