DIFFERENTIAL SCANNING CALORIMETER
Characterize heat gain/loss associated with phase transitions
DSC is a thermal analysis technique that quantifies the amount of energy in a reaction
- High sensitivity, high performance and low noise, realized by a compact furnace
- Quick gas substitution enabled by compact furnace
- Remarkable heating and cooling rates that enhance the efficiency of measurement
- Safety is emphasized on the entire system
- Measuring temperature range: -170 to 725°C
- An optional cooling unit is used for temperatures below ambient
- Inert gas flow is required for temperatures above 500°C
- Sample observation DSCvesta : Ambient to 350℃
(When using with cooling unit lowest temperature: -70℃)
Differential scanning calorimetry (DSC) quantifies the energy changes in reactions such as melting, transition, crystallization and glass transition temperature and is mainly used for research and development; and quality control in the fields of polymer, pharmaceutical, composites, laminates, adhesives, food, plastics, coatings, pharmaceuticals, organic materials, rubber, petroleum, chemicals, explosives, biological samples.
In DSC measurement sample and reference are heated simultaneously in order to maintain both at the same temperature. The amount of energy requires to heat both the sample and the reference observed with high sensitivity. The high sensitivity differential scanning calorimeter (DSC) detects the change in thermal energy generated in the sample when the sample is heated or cooled, providing reproducible data even in comparatively small amount of sample.The change in heat capacity occurs when sample changes its phase such as glass transition, melting, crystallization. The sample produce heat when it recrystallizes can be termed as exothermic. When sample absorbed the heat it melts can be termed as endothermic. Phase transitions may be either exothermic or endothermic with proper analysis one relate this heat transition as fusion, stability of polymorphic forms, purity. It is cost effective technique compare to high end techniques like PXRD and NMR
Rigaku’s DSC are heat-flux types. Several models are available depending on the maximum temperature and sensitivity difference. Thermo plus EVO2 DSCvesta is equipped with an advance furnace structure and is the leading DSC class in the industry with regards to measurement temperature range. In addition, the sensitivity and measurement range has significantly improved compared to the conventional type.
The furnace adopts the innovative Δ(Delta) block structure while the low power consumption contributes to the cooling and heating efficiency. Moreover, extendibility is improved such as all cooling units and attachments for complex measurements and can obtain a broad range of data in phenomena difficult to determine using the conventional type and extensively used for the analysis of materials in various fields. The high-sensitivity type DSCvesta has several available options, such as a refrigerated cooling system, an automatic sample changer, sample observation, depending on the objective of the measurement.
Differential scanning calorimetry
Characterize and quantifies the energy of a reaction associated with phase changes
DSC is a thermal analysis technique in which the difference in the amount of heat required to increase the temperature of a sample and reference is measured as a function of temperature.
Using this technique it is possible to observe fusion and crystallization events as well as glass transition temperatures and can be also used to study oxidation, as well as other chemical reactions.
ASC, sample observation unit, cooling unit
380 (W) x 367 (H) x 492 (D) (mm)
A compact automatic sample changer is available. This sample changer supports not only continuous measurements (up to 24 samples) but also single measurements and interrupted measurements.
Sample Observation Unit
The sample observation function allows you to observe images of the sample in real time during measurement and compare the real-time sample image with a selected image side by side. The length measurement function enables easy approximation of any size changes in an arbitrary position on the image during measurement and after analysis.
Four different types of cooling units are available to meet your measurement purposes. These cooling units do not need to be disconnected even when continuous measurement is performed up to the maximum temperature.
LN2 auto-filling cooling
LN2 siphon cooling
Bath circulator cooling
2ch-FLOW COMP Jr.
When linked with measurement programs, the 2 ch – FLOW COMP Jr. allows selection from two kinds of gas flowing into the sample room.
Application Note 1
Characterization of Olive Oil by DSC
Expansion of powder material, polymethylmethacrylate (PMMA)
Fusion of polyethylene
Melting of an extremely small amount of dotriacontane
Observation of butter crystal by simultaneous XRD-DSC measurement