Determination of changes in mass and volume of linseed oil during drying

2006 ◽  
Vol 89 (4) ◽  
pp. 327-331 ◽  
Author(s):  
P Svane
Keyword(s):  
Linseed Oil

PHYSICOCHEMICAL PROPERTIES DETERMINATION OF PICROSIDE-II

INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (08) ◽  
pp. 27-37
Author(s):  
S. Bhusari ◽  
A Chaudhary ◽  
G Shrangare ◽  
M. Rindhe ◽  
P. Wakte ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Linseed Oil ◽  
Angle Of Repose ◽  
Log P ◽  
P Value ◽  
Solubility Study ◽  
Picroside Ii ◽  
Compressibility Index ◽  
Pka Determination

The aim of the present study is to determine the physicochemical properties of Picroside-II, a phytochemical obtained from the herb of Picrorhiza kurroa. The solubility study of picroside-II shows that it has better solubility in water up to 2.46 mg/mL than organic solvents. The solubility of picroside-II in linseed oil was found to be 71.46 mg/mL. The solubility of Picroside-II in surfactant like Transcutol P and labrasol was found to be 907.80 and 535.90 mg/mL, respectively. Picroside-II had a melting point in the range of 130 to 135°C. The log P value of picroside-II was estimated using shake flask method followed by UV analysis. The log P value of picroside-II was found to be -0.09675, which shows its hydrophilicity. The pKa determination of picroside-II was carried out by using UV-visible spectrophotometer and the pKa value was found to be 7.80. The particle size distribution of picroside-II powder was also carried out and the maximum particles of picroside-II are in the range of 53-75 μm. Flow properties of picroside-II were also studied. bulk and tapped density of picroside-II powder was found to be 0.149 and 0.248, respectively. The Hausner ratio and compressibility index were also calculated and it was found to be 1.66 and 39.99, which confirm the poor flow properities of picroside-II powder. The angle of repose of picroside-II was found to be 41.08°, which shows the passable flow of picroside-II. Water was found to be the better extractive solvent for picroside-II; the extractive value of picroside-II in water was found to be 9.12%.

Properties of Modified Lime-Based Plasters for Renewal of Historical Buildings Exposed to Accelerated Carbonation Test

2017 ◽  
Vol 909 ◽  
pp. 286-290
Author(s):  
Lucie Zemanová ◽  
Jaroslav Pokorný ◽  
Milena Pavlíková ◽  
Zbyšek Pavlík
Keyword(s):  
Transport Properties ◽  
Diatomaceous Earth ◽  
Linseed Oil ◽  
Water Repellent ◽  
Historical Buildings ◽  
Accelerated Carbonation ◽  
Material Parameters ◽  
Lime Plaster ◽  
Water Transport Properties

This paper deals with determination of basic physical, mechanical, thermal and water transport properties of lime–based plasters whose composition was modified by the addition of diatomaceous earth. To eliminate possible deterioration of original lime plaster by natural weathering, the hydrophobic admixtures on the stearate and oleate basis were added into the plaster mixtures and boiled linseed oil as a painting was applied. All studied material parameters were tested after 28 days of wet curing and after exposition to accelerated carbonation. The results of examined properties of developed plasters gave promising outcomes for the use of hydrophobised materials in renewal of historical buildings. Based on the obtained data, plaster made of lime hydrate, diatomite, and combination of water repellent agents can be recommended for renovation purposes.

Rapid determination of phosphorus in linseed oil by oxygen bomb

1940 ◽  
Vol 12 (3) ◽  
pp. 165-165 ◽  
Author(s):  
George T. Piercy ◽  
Edwin K. Plant ◽  
M. C. Rogers
Keyword(s):  
Rapid Determination ◽  
Linseed Oil ◽  
Oxygen Bomb

A comparison of several methods for determination of non-oil constituents of raw linseed oil

1952 ◽  
Vol 29 (3) ◽  
pp. 99-103
Author(s):  
J. N. Shaw ◽  
J. W. Garrett ◽  
S. O. Sorensen
Keyword(s):  
Linseed Oil
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