INDUSTRIAL AND ENGINEERING CHEMISTRY
December, 1942
Because of a mathematical quirk, these charts give an infilinityOf when A = 1* in this case the equation simplifies to:
N=- E
or E = - N N f l
When either A Or E is the straight edge be pivoted around the known point On the chart intersects the remaining scales in complementary values.
it
1501
Literature Cited (1) Allcock and Jones, “The NomogramtP, London, Sir Isaac pi& man & Sons, 1941. (2) Brown, G , G.,et al., Trans. Am. Inst. Chem. Engra., 30, 438-546 (1933-34). (3) Souders, M.,and Brown, G . G.. IND.ENG.CRIM... 24. . 519-22 (1932). NOTE. Reproductions of these nomographs, approximately 16 b y 20 inches, may be obtained from the Department of Chemical Engineering, Illinois Institute of Technology, for 50 cents per set.
Equilibria in Ethanol-Water Svstem at Pressures Less Than Atmospheric J
A. H. BEEBE, JR., I
