PRODUCT CODE 2051 DESCRIPTION C4/C5 alcohol distillation cut. Appearance ASTM E2680 Colour Pt-Co Clear and bright 5 max ASTM D1209; ASTM D5386 Water mass % 0.10 max ASTM D1364 n-Butanol mass % 60.0 min GC sec-Pentanol mass % 20.0 max GC Total alcohols mass % 99 min GC Carbonyls as propionaldehyde mass % 0.30 max B124 Properties Units Limits Test Methods Density at 20â?? 0.808-0.811 ASTM D4052 Distillation at 101.3 kPa: Initial boiling point Dry point â?? g/ml 115 â?? 118 ASTM D1078 Iso-butanol mass % 12 GC Further Properties Units Typical values Test Methods The sales Specification values are continuously checked, documented and stored within the scope of Quality assurance Further properties are of an informational nature only and are not checked regularly. If the Sales Specifications are complied with; it can generally be assumed that all further properties and typical data Conform to the values given.