DTA technique for identifying the phase inversion temperature of oil-water emulsions

Journal Article · Mon Jun 01 04:00:00 EDT 1970 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(70)90032-9· OSTI ID:5307343

Matsumoto, S; Sherman, P

A simple differential thermal analysis procedure is described for determining the phase inversion temperature (PIT) of O/W emulsions stabilized by polyoxyethylene surfactants. With Nujol as the standard and a heating rate of 0.72$C, the PIT is defined by a sharp endothermic peak. The PIT is not affected by the volume concentration of oil, although it has a slight effect on the height of the peak, nor by the size distribution of oil particles. The chemical nature of the surfactant and that of the oil phase both influence the PIT. In general, it was found that with a given oil phase the PIT increased linearly as the HLB (hydrophile-lipophile balance) of the surfactant, or surfactant blend, increased.

• Research Organization: Osaka Univ
• OSTI ID: 5307343
• Journal Information: J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 33:2; ISSN JCISA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
COLLOIDS
DIFFERENTIAL THERMAL ANALYSIS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PHASE STUDIES
SURFACTANTS
TEMPERATURE INVERSIONS
THERMAL ANALYSIS
WATER
WETTABILITY