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Crucibles serve as containers for samples during DSC and TGA measurements. They guarantee that the sensor is not contaminated during the measurement.
Crucible 25 uL, Al, 100 pcs
Aluminum 25 μL pan with lid.Set of 100 crucibles and lids optimized for enthalpy measurements. The crucible can be hermetically sealed to suppress endothermic evaporation or vaporization when carrying out DSC measurements on volatile substances.
Conical aluminum pan with lid
The 25 μL pan is the only crucible with a conical shape. Its contact area is smaller than that of the standard 40 uL crucibles.
High enthalpy reproducibility
This crucible has been designed for optimal enthalpy reproducibility, thanks to a smaller base area (45% compared to standard crucibles).
Various lids available
Three lid types can be combined with the 25 μL pans: standard lids, lids for piercing by the robot, and lids with a prepierced 50 mm hole.
Material No.: 30085850
Product Family:Crucibles000500020006
Specifications - Crucible 25 uL, Al, 100 pcs
| Material | Aluminum |
| Volume | 25 µL |
| Measuring Technique | DSC |
| Automation | Yes |
| Maximum Temperature | 640 °C |
| Maximum Pressure | 0.2 MPa |
| Number of Pieces | 100 |
| Included | with Lids |
| Pin | without |
| Beaker Volume | 25 µL |
| Lid | with |
Optimized for best enthalpy results
This crucible is optimized for enthalpy measurements which aim to achieve the best possible reproducibility. The flat base with a diameter of 4 mm and the crucible height of 1.6 mm ensure that the temperature gradients are kept as low as possible.
Al 25 μL crucible hermetically sealed
The crucible can be hermetically sealed to suppress endothermic evaporation, vaporization or sublimation when carrying out DSC measurements on volatile substances. The maximum permissible overpressure that the sealed lid withstands is 0.2 MPa.
Plunger/die set for sealing
For these crucibles, the standard die/plunger set (ArtNo 27809 and 27386) is used; the set is included when buying the standard crucible press.
Aluminum background information (I)
Aluminum crucibles have a high purity of 99.9%. The maximum usage temperature of the crucibles is 640 °C. At the surface, a thin alumina (Al2O3) layer forms if the crucibles are kept in an ambient atmosphere.
Aluminum background information (II)
"... However, this alumina layer is not always perfect; therefore, experts recommend treating crucibles for critical experiments for about 15 min at 400 °C in an air atmosphere. A hazardous substance in combination with aluminum is mercury (poison for Al)."
One pan as lid for optimal conductivity
To increase thermal conductivity, the conical design of the 25 μL crucibles enables cold-welding of two pans. This is recommended for powders or materials without flat surface.
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