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| | | CELLS | | |
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| | | The flexibility ofthe |jDSC3 evo comes from the choice of experimental cells. The cells can be closed ("batch" type) or combined with fittings to introduce reactive agents ("flow" type). All the cells can be used in either isothermal or DSC mode. They are made of Hastelloy C, have a volume of approximately 1 cm3 and are readily removed and easily cleaned. | | |
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| | | • Closed "batch" cells for the analysis of raw solid or liquid samples. These cells are sealed, and can withstand internal pressures of up to 20 bar. | | |
| | | Sample (solid or liquid) | | |
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| | | Two different liquids input ^ | | |
| | | Mixed liquids output | | |
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| | | • Cells for mixing circulating liquids to study the mixing of two liquids '"in situ". The liquids enter the celll through two separate tubes which join together in a industrial mixer. The resulting mixture exits from the cell through a third concentric tube. The liquids are temperature controlled in the prestabilizer on the calorimeter inlet before mixing. | | |
| | | Mixer | | |
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| | | • Ampoule vessel to study powder wetting or hydration. The powder is first degassed in the ampoule under vacuum prior to sealing. The sealed ampoule is then immersed in the liquid. The ampoule is broken by a push rod, ensuring immediate wetting of the powder. | | |
| | | Push rod | | |
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| | | Liquid | | |
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| | | Breakable glass ampoule containing powder | | |
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| | | Tube for gas circulation | | |
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| | | • Fluid-circulation cell to study interactions between a fluid and a solid sample. The circulation vessel contains a tube for introducing a fluid (liquid or gas) and a concentric exhaust tube. The fluid is temperature controlled in the pre-stabilizer on the calorimeter inlet. | | |
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| | | • Mixing "batch" cell for studying reactions between a powder and a liquid. The mixing "batch" cell comprises two separate sample chambers. The samples are brought into contact and mixed using a push rod, the end of which ensures effective stirring of the mix. This cell is ideal for the study of enzymatic, wetting and mixing reactions, etc. | | |
| | | Movable part Container 1 with powder | | |
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| | | • Heat capacity cell to measure the heat capacity of liquids. The accuracy of measurement of the heat capacity of a liquid using the calorimetry depends on the correction due to the vapor phase above the liquid. To overcome this error the uDSC3 evo heat capacity cell is fitted with two tubes welded to the cell body. The cell is filled through one of the tubes to avoid having any vapor phase in the cell. The heat capacity for the corresponding volume of liquid is determined by temperature increments to ensure greater accuracy (step scanning procedure). The closed "batch" celll is used to measure the heat capacity of solids. | | |
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