ChemInform Abstract: VAPOR‐LIQUID EQUILIBRIA OF SEC.‐BUTANOL‐ISOBUTANOL, SEC‐BUTANOL‐TERT.‐BUTANOL, ISOBUTANOL‐TERT.‐BUTANOL, ISOBUTANOL‐N‐BUTANOL, AND ISOPROPANOL‐SEC.‐BUTANOL SYSTEMS. TERNARY VAPOR‐LIQUID EQUILIBRIA FOR SYSTEM N‐BUTANOL‐SEC.‐BUTANOL‐TERT.‐BUTANOL