Humidity fixed points of binary saturated aqueous solutions

An e valua ted compil ation of equilibrium rela ti ve humiditi es in a ir ve rsus tempe rature from pure phase to a pproximatel y l OS pascal (1 a tm) in press ure is present ed fo r 28 bina ry saturated aqueous so luti ons . Th e relative humiditi es of th e solutio ns ra nge from about 3 to 98 pe rcent. Us ing a da ta base from 2 1 sepa ra te in vesti gati ons compris ing 1106 indi vidu al meas ure me nts, fits we re made by the me thod of least s qua res to regula r po lynomia l equ ati ons with two through four coeffi c ie nts. Equa ti ons a nd ta bles a re presented a long with the estima ted uncert a inti es in the correla ted res ults.