Results 1 to 10 of about 25,943 (301)
A Critical Review on the Analysis of Metal Soaps in Oil Paintings [PDF]
ChemistryOpen, 2021 Up to 70 % of the oil paintings conserved in collections present metal soaps, which result from the chemical reaction between metal ions present in the painted layers and free fatty acids from the lipidic binders.
Prof. Francesca Caterina Izzo +3 more
doaj +4 more sources
But aren’t all soaps metal soaps? A review of applications, physico-chemical properties of metal soaps and their occurrence in cultural heritage studies [PDF]
Heritage Science, 2023 Metal soaps, the organic salts resulting from the interaction of fatty acids and metal cations, arouse interest in the scientific field because of their versatility in a great range of chemical applications as well as because of the mechanism of their ...
Silvia Russo +3 more
doaj +4 more sources
First Insights into the Formation of Metal Soaps in Alkyd-Based Paints: A Proof-of-Concept Investigation Using FTIR Spectroscopy [PDF]
MoleculesThe formation of metal soaps or carboxylates in oil paintings is a widely studied topic. Expanding upon the extant research on the subject, this work investigates the formation of metal soaps as pertaining to alkyd-based media.
Tommaso Poli +5 more
doaj +4 more sources
About metal soaps in ethnographic collections
CeROArt : Conservation, Exposition, Restauration d'Objets d'ArtThis article discusses the value of ethnographic objects in museums and collections, and the challenges of preserving them due to their complex composition and poly-materiality.
Silvia Russo +5 more
doaj +5 more sources
The influence of commercial primed canvases in the manifestation of metal soaps protrusions in Georgia O’Keeffe’s oil paintings [PDF]
Heritage Science, 2020 During a routine condition survey in 2007 at the Georgia O’Keeffe Museum in Santa Fe, micro-protrusions were found scattered across the surfaces of the artist’s oil paintings produced between 1920 and 1950. In many of her works, including Pedernal (1941)
Annette S. Ortiz Miranda +2 more
doaj +2 more sources
Preparation and characterization of Zinc metal soap from shea butter (Vitellaria paradoxa)
Journal of Nigerian Society of Physical Sciences, 2021 Zinc metal soaps are of great importance in the manufacture of personal care products and other industrial applications. Variations in the soaps and their properties are usually due to the type of oil used in the synthesis.
O. Amos, T. E Odetoye, D. S. Ogunniyi
doaj +3 more sources
Preparation and Characterization of Metal Soaps of Cocos nucifera Seed Oil
Journal of Applied Sciences and Environmental Management, 2014 This study investigated the extraction of Cocos nucifera seed oil (CSO) from Cocos nucifera seed using aqueous processing and the production of metal soaps from the oil and their characterization in terms of colour, pH, free caustic alkalinity, foaming ...
E K Ossai
doaj +3 more sources
Molecules, 2018 Saponification is the process in which triglycerides are combined with a strong base to form fatty acid metal salts during the soap-making process. The distribution of unsaturated and saturated fatty acid determines the hardness, aroma, cleansing, lather,
Natalia P Vidal +2 more
exaly +3 more sources
NIPPON KAGAKU KAISHI, 1991 非水系での酸化ジルコニウム(IV)単分散微粒子調製の一方法として,高級アルコール中に分散させたジルコニウムセッケンの加熱分解法を試み,金属アルコキシド分解法からのものとの比較を行った。金属セッケンは,脂肪酸の総炭素数C12,C14,C16,C18のものを,媒質のアルコールは総炭素数C8,C10,C12,C14のものを用いた。媒質中に分散させたジルコニウムセッケンの懸濁を120～200℃の温度範囲で一定時間,一定温度下で加熱することにより,ZrO2の微粒子を含む安定なオルガノゾルを得た。系から析出する微粒子は,ほぼ球状で,平均粒子半径は0.4～0.1μmであった。また加熱温度が高くなると単分散性がよくなり,金属セッケンの炭素数が増すと平均粒径が減少する傾向を示した ...
Tokuko SUGIMURA +4 more
openaire +3 more sources
Process development for metal soaps
, 2003 Includes bibliographical references (leaves: 80-83)
Mehmet Gönen
openaire +3 more sources