Densities, Viscosities, and Refractive Indices of Mixtures of Hexane with Cyclohexane, Decane, Hexadecane, and Squalane at 298.15 K

Tripathi, Neelima

doi:10.1007/s10765-005-5572-8

Cited by 60 publications

(29 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The squalane volume is about 870 Å 3 as calculated from the density in (23) and the volume of a CH 2 group is about 27 Å 3 (24) , so the volume of the Toc hydrocarbon tail is about 462 Å 3 , which is very similar to the OA tail. When the fit to the SAXS data is done, the relative total scattering length (also known as scattering mass) of the core and the shell are calculated.…”

Section: Quartz Crystal Microbalance With Dissipation (Qcm-d): Qcm-d mentioning

confidence: 99%

The Use of Liprotides To Stabilize and Transport Hydrophobic Molecules

Pedersen

Otzen

2015

Biochemistry

View full text Add to dashboard Cite

Recently, it has been shown that different complexes consisting of protein and fatty acids, which we call liprotides, have common functional and structural features. Liprotides can transfer their fatty acid content to membranes, highlighting the potential to incorporate other small molecules and help transfer them to membranes. In this study, this potential was explored with regard to the poorly water-soluble vitamin E compound α-tocopherol (Toc). Uptake into liprotides increased Toc solubility and chemical stability. The liprotide-Toc complexes retained the characteristic liprotide structure with a core of fatty acid surrounded by protein. Toc and fatty acid could be transferred to artificial vesicles upon being incorporated into the liprotide complex. Extending this work, we found that free tryptophan and the vitamin A precursor retinaldehyde could also be incorporated in the liprotides; however, other small molecules failed to be taken up, and we conclude that successful incorporation requires a hydrophobic terminal moiety that can be accommodated within the micelle interior of the liprotides. Nevertheless, our work suggests that liprotides are able to stabilize and transport a number of otherwise insoluble small molecules with significant potential health benefits.

show abstract

Section: Quartz Crystal Microbalance With Dissipation (Qcm-d): Qcm-d mentioning

confidence: 99%

The Use of Liprotides To Stabilize and Transport Hydrophobic Molecules

Pedersen

Otzen

2015

Biochemistry

View full text Add to dashboard Cite

show abstract

“…12 A 300 μm diameter tungsten wire was employed and the absolute uncertainty was calculated to be 1%. Table 2 summarizes, to the best of our knowledge, the present measurements and the previous experimental measurements 11,[23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] of the viscosity of squalane as a function of temperature at 0.1 MPa. We included 22 sets in the table.…”

Section: Measurements At Authmentioning

confidence: 99%

Reference Correlation of the Viscosity of Squalane from 273 to 373 K at 0.1 MPa

Comuñas

Paredes

Gaciño

et al. 2013

Journal of Physical and Chemical Reference Data

View full text Add to dashboard Cite

International audienceThe paper presents a new reference correlation for the viscosity of squalane at 0.1 MPa. The correlation should be valuable as it is the first to cover a moderately high viscosity range, from 3 to 118 mPa s. It is based on new viscosity measurements carried out for this work, as well as other critically evaluated experimental viscosity data from the literature. The correlation is valid from 273 to 373 K at 0.1 MPa. The average absolute percentage deviation of the fit is 0.67, and the expanded uncertainty, with a coverage factor k = 2, is 1.5%

show abstract

“…; , Fandiño et al 19,20 ; , Tripathi 21 ; , Kumagai et al ; , Fandiño et al 19,20 ; , Tripathi 21 ; , Kumagai et al 22 ; , Tomida et al 23 ; , Ciotta et al 26 ; , Dubey and Sharma 24 ; , Harris 25 ; , Fandiño et al 27 ; , Mylona et al 28 ; , New Data. (4) 37 ; , Pensado et al 38 ; , Bair 39 ; , Paredes et al 40 ; , Comuñas et al 42 ; , Comuñas et al 42 ; , New Data.…”

unclassified

New Experimental Data and Reference Models for the Viscosity and Density of Squalane

et al. 2014

View full text Add to dashboard Cite

Empirical models for the density and the viscosity of squalane (C30H62; 2,6,10,15,19,23-hexamethyltetracosane) have been developed based on an exhaustive review of the data available in the literature and new experimental density and viscosity measurements carried out as a part of this work. The literature review showed there was a substantial lack of density and viscosity data at high temperature (373 to 473) K and high pressure conditions (pressures up to 200 MPa). These gaps were addressed with new experimental measurements carried out at temperatures of (338 to 473) K and at pressures of (1 to 202.1) MPa. The new data were utilized in the model development to improve the density and viscosity calculation of squalane at all conditions including high temperatures and high pressures.The model presented in this work reproduces the best squalane density and viscosity data available based on a new combined outlier and regression algorithm. The combination of the empirical models and the regression approach resulted in models which could reproduce the experimental density data with average absolute percent deviation of 0.04%, bias of 0.000%, standard deviation of 0.05%, and maximum absolute percent deviation of 0.14% and reproduce the experimental viscosity data with average absolute percent deviation of 1.4%, bias of 0.02%, standard deviation of 1.8% and maximum absolute percent deviation of 4.9% over a wide range of temperatures and pressures. Based on the data set used in the model regression (without outliers), the density model is limited to the pressure and temperature ranges of (0.1 to 202.1) MPa and (273 to 525) K, while the viscosity model is limited to the pressure and temperature ranges of (0.1 to 467.0) MPa and (273 to 473) K. These models can be used to calibrate laboratory densitometers and viscometers at relevant hightemperature, high-pressure conditions.

show abstract

Densities, Viscosities, and Refractive Indices of Mixtures of Hexane with Cyclohexane, Decane, Hexadecane, and Squalane at 298.15 K

Cited by 60 publications

References 20 publications

The Use of Liprotides To Stabilize and Transport Hydrophobic Molecules

The Use of Liprotides To Stabilize and Transport Hydrophobic Molecules

Reference Correlation of the Viscosity of Squalane from 273 to 373 K at 0.1 MPa

New Experimental Data and Reference Models for the Viscosity and Density of Squalane

Contact Info

Product

Resources

About