Efflorescence on the surface of beeswax seals : a calorimetric study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70979821%3A_____%2F13%3A%230000369" target="_blank" >RIV/70979821:_____/13:#0000369 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Efflorescence on the surface of beeswax seals : a calorimetric study

Popis výsledku v původním jazyce

The surface of beeswax seals shows a tendency to become covered with a white crystallic layer, composed mainly of unsaturated hydrocarbons. In order to obtain deeper insight into the nature of this adverse phenomenon, the thermal properties of the efflorescence and the pseudobinary mixtures efflorescence/beeswax were studied employing DSC and FTIR methods. The results are in agreement with the hypothesis that a primary cause of the problem is the limited miscibility of both pseudocomponents. Although acertain amount of alkenes can be ?tolerated? in recrystallized beeswax, the resulting mixture is metastable. The possible delayed crystallization of alkenes is then connected with the development of the efflorescence.

Název v anglickém jazyce

Efflorescence on the surface of beeswax seals : a calorimetric study

Popis výsledku anglicky

The surface of beeswax seals shows a tendency to become covered with a white crystallic layer, composed mainly of unsaturated hydrocarbons. In order to obtain deeper insight into the nature of this adverse phenomenon, the thermal properties of the efflorescence and the pseudobinary mixtures efflorescence/beeswax were studied employing DSC and FTIR methods. The results are in agreement with the hypothesis that a primary cause of the problem is the limited miscibility of both pseudocomponents. Although acertain amount of alkenes can be ?tolerated? in recrystallized beeswax, the resulting mixture is metastable. The possible delayed crystallization of alkenes is then connected with the development of the efflorescence.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Thermochimica Acta: An International Journal Concerned with All Aspects of Thermoanalytical and Calorimetric Methods and their Application to Experimental Chemistry, Physics, Biology and Engineering

ISSN

0040-6031

e-ISSN

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Svazek periodika

566

Číslo periodika v rámci svazku

2013

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

292-297

Kód UT WoS článku

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EID výsledku v databázi Scopus

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