Standard test method for purity of hydrocarbons from freezing points

Journal Article · Sun Dec 31 23:00:00 EST 1978 · Annu. Book ASTM Stand.; (United States)

OSTI ID:6767735

The sampling and determination of the purity of essentially pure compounds for which the freezing points for zero impurities and cryoscopic constants are well known are described. The method is described as it is specifically applied to each of the following compounds: n-butane, isobutane, n-pentane, isopentane, n-hexane, n-heptane, n-octane, 2,2,4-trimethylpentane, methylcyclohexane, isobutene, 1,3-butadiene, isoprene, benzene, toluene, o-xylene, m-xylene, p-xylene, and styrene. After measurement of the freezing point of the actual sample, purity can be calculated from the values given for the freezing point for zero impurity and for the applicable cyroscopic constants(s). Detailed diagrams of the apparatus are shown. (BLM)

• OSTI ID: 6767735
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 23; ISSN ASTSA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
2-METHYLBUTANE
2-METHYLPROPANE
ALKANES
ALKENES
AROMATICS
BENZENE
BUTADIENE
BUTANE
CYCLOALKANES
DIENES
HEPTANE
HEXANE
HYDROCARBONS
IMPURITIES
ISOPRENE
MELTING POINTS
OCTANE
ORGANIC COMPOUNDS
PENTANE
PHYSICAL PROPERTIES
POLYENES
STANDARDS
STYRENE
THERMODYNAMIC PROPERTIES
TOLUENE
TRANSITION TEMPERATURE
XYLENES