Results 21 to 30 of about 25,943 (301)

Evaluation of the effect of temperature on the stability of metal soaps of dicarboxylic acids

open access: yesJournal of Applied Sciences and Environmental Management, 2005
The thermal stability of calcium and zinc dicarboxylates was studied. The kinetics of the decomposition was studied thermogravimetrically at various temperatures. The rates of the first stage decomposition were used to assess the effect of temperature on
EU Ikhuoria, FE Okieimen, A I Aigbodion
doaj   +1 more source

Degradation Products Assessment of the Wooden Painted Surfaces from a XVIIth Heritage Monastery

open access: yesApplied Sciences, 2023
Currently, approximately 70% of paintings in museum collections are affected by the presence of metallic soaps, evidenced by spherical globules visible on the surface of the paintings.
Rodica-Mariana Ion   +5 more
doaj   +1 more source

The Synthesis of Magnesium Soaps as Feed for Biohydrocarbon Production

open access: yesMATEC Web of Conferences, 2018
In previous study, by heating magnesium basic soaps from palm stearine will decarboxylated and produced biohydrocarbon. The frequent method to produced metal soaps from triglyceride in laboratory scale is metathesis.
Pratiwi Meiti   +3 more
doaj   +1 more source

Metal Soap Membranes for Gas Separation [PDF]

open access: yesAdvanced Functional Materials, 2020
AbstractMetal soaps or metal alkanoates are metal–organic complexes held together with metal cations and the functional groups of hydrocarbon chains. They can be synthesized at a high yield by simply mixing the metal and organic sources, forming crystalline frameworks with diverse topology, and have been studied in the past because of their rich ...
Liu, Qi   +5 more
openaire   +1 more source

Jhamarkotra phosphate ore processing plant [PDF]

open access: yes, 2009
: Low grade phosphate ore of Jhamarkotra that analyzes 16.5% P~2~O~5~ is upgraded to 34% P~2~O~5~ by a two stage flotation process after size reducing the ore to 90% passing through 200mesh using conventional equipment such as jaw and cone crushers ...
C.L Jain, Sekhar Dmr
core   +2 more sources

Computational modelling of metal soap formation in historical oil paintings: the influence of fatty acid concentration and nucleus geometry on the induced chemo-mechanical damage

open access: yesSN Applied Sciences, 2020
Metal soap formation is one of the most wide-spread degradation mechanisms observed in historical oil paintings, affecting works of art from museum collections worldwide.
G. J. A. M. Eumelen   +6 more
doaj   +1 more source

Breaking down banners: analytical approaches to determining the materials of painted banners [PDF]

open access: yes, 2016
Background: This paper investigates a range of analytical techniques to yield information about the materials and processes used in making painted banners.
Hermens, E., Smith, M.J., Thompson, K.
core   +2 more sources

Sustainable Diesel from Pyrolysis of Unsaturated Fatty Acid Basic Soaps: The Effect of Temperature on Yield and Product Composition

open access: yesMolecules, 2022
The production of sustainable diesel without hydrogen addition remains a challenge for low-cost fuel production. In this work, the pyrolysis of unsaturated fatty acid (UFA) basic soaps was studied for the production sustainable diesel (bio-hydrocarbons).
Endar Puspawiningtiyas   +11 more
doaj   +1 more source

A literature review of analytical techniques for materials characterisation of painted textiles - Part 2: spectroscopic and chromatographic analytical instrumentation [PDF]

open access: yes, 2017
Part Two of this Literature Review of analytical techniques for materials characterisation of painted textiles focusses on the application of vibrational and x-ray spectroscopic and chromatographic techniques used in the analysis of painted textiles to ...
Lennard, Frances   +2 more
core   +1 more source

Manganese and Iron Catalysts in Alkyd Paints and Coatings

open access: yesInorganics, 2016
Many paint, ink and coating formulations contain alkyd-based resins which cure via autoxidation mechanisms. Whilst cobalt-soaps have been used for many decades, there is a continuing and accelerating desire by paint companies to develop alternatives for ...
Ronald Hage   +2 more
doaj   +1 more source

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