Differential Scanning Calorimetry (DSC) measures the amount of energy absorbed or released by a sample when it is exposed to a temperature change. This provides quantitative and qualitative data on endothermic and exothermic processes.
DSC is used to measure melting/crystallization behaviour, solid-solid transitions, polymorphism, degree of crystallinity, glass transition temperature, cross-linking reactions, oxidative stability, purity determinations, specific heat capacity and thermokinetics.
Various crucibles (pans) are available. A suitable pan needs to be chosen to avoid reactions with samples and with regard to the temperature range of the measurement.
Various chamber atmospheres are available: nitrogen, oxygen, air, argon, vacuum or a specific gas mixture.
Temperature range -150°C to 2400°
Heating rate 0.001 to 50 K/min
Sensors TGA, TGA-DTA, TGA-DSC, TGA-DSCcp
Vacuum-tight 10-4 mbar
Atmospheres Inert, oxidizing, static, dynamic, vacuum
Temperature resolution 0.001 K
Balance resolution 0.1 μg (over the entire weighing range)
Maximum sample load 35000 mg (incl. crucible), DSC: 0.19 ml, DTA: 0.9 ml
DSC enthalpy accuracy ± 2% (for most materials)
In house: TGA/DSC - MS Netzsch STA 449 FS QMS 403 C