Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Surface tension of molten metal halide salts
Author:
Fathi Aqra
Year:
2014
Bibliographic source:
Journal of Molecular Liquids 200: 120-121

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Recently, we established a theoretical model for calculating the surface tension: γ= φ^(-1 ) (Vs/V)kT ((0.0481 Es)/RT) where V or Vs= M/ρ and φ= √3/2 〖((√2 Vs)/N)〗^(2/3)
where M is the molar mass, ρ is the density, N is the Avogadro's number (6.02 · 1023 atoms/mol), γ is the surface tension (mJ m− 2), k is the Boltzmann constant (1.38 · 10− 23 J K− 1),R is the universal gas con- stant (8.31 J K− 1 mol− 1), T is the absolute temperature (K), V and Vs are the molar volumes at any temperature and at the melting point (cm3 mol− 1), respectively, φ is the area occupied (cm2 atom− 1) and Es is the heat of sublimation.
GLP compliance:
not specified
Type of method:
other: calculation based on theoretical model and check with reported data

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified

Results and discussion

Surface tension
Key result
Surface tension:
27 mN/m
Temp.:
351 K
Conc.:
100 vol%
Remarks on result:
other: surface tension predicted for molten gallium chloride (at melting temperature)

Applicant's summary and conclusion

Conclusions:
The predicted surface tension for molten gallium chloride at 351 K is 27 mN/m.