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Instruments analytiques Analyse thermique Options et accessoires d'analyses thermiques Microscopy Package DSC STAReCapture

Microscopy Package DSC STAReCapture

Mesures DSC avec observation visuelle.

Possibilités d'imagerie

utilisation d’informations visuelles pour faciliter l’interprétation des résultats

Interface utilisateur intuitive

pour un fonctionnement simple et intuitif

Procédé parfait

guidage efficace, étape par étape, via l’analyse visuelle

Matériel No.: 30908684

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Spécifications - Microscopy Package DSC STAReCapture
Technique
 Calorimétrie différentielle à balayage (DSC)
Calorimétrie à balayage différentiel à haute pression
Accessoire
 Oui

Mise à niveau simple et rapide

conversion d’une DSC en système de microscopie en quelques minutes.

Contenu de l’emballage

caméra, câble, optique de zoom DSC, source de lumière LED avec unité de polarisation, logiciel et documentation STAReCapture

Documentation

Brochures produits

DSC 3 Product Brochure
DSC 3 Product Brochure
La calorimétrie différentielle à balayage (DSC) est la technique d'analyse thermique la plus utilisée. La DSC mesure les écarts d'enthalpie dans les é...
HP DSC 2+ Product Brochure
Brochure: HP DSC 2+
Increased pressure is a factor that influences all physical changes and chemical reactions in which a change in volume occurs. For material testing, p...
The Future of Thermal Analysis Brochure
Le futur de l'analyse thermique brochure
La gamme d'instruments d'analyse thermique Excellence de METTLER TOLEDO propose des solutions spécifiques tant pour les applications académiques que p...
STARe Excellence Software Brochure
STARe Excellence Software Brochure
L'analyse thermique (TA) est devenue une méthode d'analyse de référence dans de nombreux domaines. Que ce soit dans l'assurance qualité, le développem...

Documentations commerciales

Datasheet: DSC-Microscopy System
Datasheet: DSC-Microscopy System
Enhance your DSC analysis with METTLER TOLEDO's microscopy system. Visualize thermal transitions, identify effects, and improve result interpretation...

Accessoires

Application Examples


   
DSC-microscopy analysis of an active pharmaceutical ingredient

The melting point is an important characteristic property of a substance. The DSC measurement of an active pharmaceutical substance (API) yielded a curve with two main peaks – an endothermic peak with a maximum at 210.8 °C and an exothermic peak at about 228 °C. A smaller peak was also apparent between these two peaks at about 214 °C. The initial interpretation was that the endothermic peak at 210.8 °C is due to melting. The DSC-microscopy results, however, told a different story. No melting was observed at 211 °C – the first signs were detected at about 214 °C. Clearly, the endothermic DSC peak is not caused by a melting process. The color change of the molten substance leads one to conclude that it decomposes immediately on melting. The small DSC peak observed at about 214 °C is therefore the sum of two simultaneously occurring effects – endothermic melting and exothermic decomposition. Separate TGA-MS measurements showed that the endothermic DSC peak at 210.8 °C is caused by the evaporation of water of crystallization.
 



Dehydration of CoCl2 hexahydrate

The images illustrate the dehydration process of cobalt (II) chloride hexahydrate when it is heated from 30 °C at 1.5 K/min. The initial ruby-red color becomes lighter and lighter until it suddenly changes at about 55 °C. Further color changes are observed between 100 °C and 120 °C and at 160 °C. The differences can be quantified by calculating a curve showing image brightness as a function of temperature. The DSC curve shows a broad endothermic peak up to 80 °C with a sharp peak at about 55 °C superimposed on it. Two further endothermic peaks follow at about 104 and 130 °C. The brightness first increases and then suddenly decreases at about 55 °C. Afterward, it increases again in several steps. The peak at about 55 °C is due to a change in crystalline structure. The images around 55 °C show small droplets of water on the surface of the crystals. This indicates that part of the water of crystallization eliminated from the crystal lattice during the solid- solid transition collects on the surface of the crystals and then evaporates. This is completed by about 80 °C. The two broad endothermic peaks on the DSC curve and the step-like changes in the brightness are due to further loss of water of crystallization.

Consommables

Logiciel

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Microscopy Package DSC STAReCapture