Cerulean Blue in Historical Paintings: Magnesium Identification and Pigment Replication

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023281%3A_____%2F25%3AN0000074" target="_blank" >RIV/00023281:_____/25:N0000074 - isvavai.cz</a>

Výsledek na webu

<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.202500062" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.202500062</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cplu.202500062" target="_blank" >10.1002/cplu.202500062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cerulean Blue in Historical Paintings: Magnesium Identification and Pigment Replication

Popis výsledku v původním jazyce

Cerulean blue is a pigment that was introduced to the art market at the turn of the 1850s and 1860s, with its composition stated as CoSnO3. For this project, the pigment was synthesised using historical recipes and analysed. The investigation involved examining various conditions for its preparation, such as different reactants, solution concentrations, precipitate ageing times, firing temperatures and calcination times. All of the samples obtained were green in colour, and their composition was defined as a mixture of SnO2 and Co2SnO4. To gain a more accurate understanding of pigment composition, historical paint samples and commercially available pigments were analysed. These pigments were found to contain a relatively high amount of magnesium, so new pigment samples were prepared with added magnesium. The obtained samples have the desired blue colour; their composition is Mg2-xCoxSnO4 and SnO2. Using K2SnO3·3H2O as a reactant produced more reproducible results than using SnCl4·5H2O. The reconstruction of pigment production methods revealed gaps in historical recipes. The collected data allowed us to specify the composition of cerulean blue pigment as Mg2-xCoxSnO4 with a variable amount of SnO2.

Název v anglickém jazyce

Cerulean Blue in Historical Paintings: Magnesium Identification and Pigment Replication

Popis výsledku anglicky

Cerulean blue is a pigment that was introduced to the art market at the turn of the 1850s and 1860s, with its composition stated as CoSnO3. For this project, the pigment was synthesised using historical recipes and analysed. The investigation involved examining various conditions for its preparation, such as different reactants, solution concentrations, precipitate ageing times, firing temperatures and calcination times. All of the samples obtained were green in colour, and their composition was defined as a mixture of SnO2 and Co2SnO4. To gain a more accurate understanding of pigment composition, historical paint samples and commercially available pigments were analysed. These pigments were found to contain a relatively high amount of magnesium, so new pigment samples were prepared with added magnesium. The obtained samples have the desired blue colour; their composition is Mg2-xCoxSnO4 and SnO2. Using K2SnO3·3H2O as a reactant produced more reproducible results than using SnCl4·5H2O. The reconstruction of pigment production methods revealed gaps in historical recipes. The collected data allowed us to specify the composition of cerulean blue pigment as Mg2-xCoxSnO4 with a variable amount of SnO2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10400 - Chemical sciences

Projekt

<a href="/cs/project/VJ01010004" target="_blank" >VJ01010004: Rozvoj strategického klastru pro efektivní instrumentální technologické postupy při odhalování padělků výtvarných děl moderního umění ve forenzní oblasti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ChemPlusChem

ISSN

2192-6506

e-ISSN

2192-6506

Svazek periodika

91

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

001748104200018

EID výsledku v databázi Scopus

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