Supercritical dryer SCD-350M

Instrument name:Supercritical dryer SCD-350M

Principle:

Supercritical fluids have gas like diffusivity and liquid solubility, as well as low viscosity and surface tension, allowing them to rapidly penetrate into micropores. Therefore, the extraction/drying speed is faster and more effective than that of liquids, especially the solubility can vary with temperature, pressure, and polarity.

In the traditional drying method, the liquid is directly converted into gas under high temperature conditions, which will produce a certain amount of surface tension change, and may damage the fine structure of the sample. For special samples, such as sol gel, biological samples, porous materials with unstable structure, etc., the sample structure will be damaged if pretreated by the traditional drying method. In the critical point drying method, the medium uses a phase transition method of liquid carbon dioxide supercritical carbon dioxide gaseous carbon dioxide to reduce the surface stress at the interface to zero, which can preserve the fine structure of the sample.

Technical parameters:

1. 316L stainless steel integral processing sample pool and high-pressure resistant pipeline, ensuring safety and security;

*2. Dual temperature control design, independent temperature control and automatic operation for cooling and heating, without interference or manual intervention.

*3. Compressor refrigeration, automatic temperature control with electric heating, temperature control range: 0 ℃ to 60 ℃, accuracy ≤ ± 1 ℃.

*4. High pressure sample cell with sapphire window, diameter 105mm， A vertical sample chamber with a height of 35mm, equipped with top air intake and bottom exhaust, which facilitates medium discharge and sample placement.

*5. Adopting a combination design of high-pressure switch valves and high-precision fine-tuning valves to avoid the hidden danger of air leakage when using fine-tuning valves alone.

6. The normal working pressure of the instrument is 0-10MPa, and the factory testing system has a pressure resistance of 15MPa (2150psi) to ensure safety and reliability.

7. The instrument is equipped with an automatic overpressure relief system to ensure controllable pressure.

8. A complete filtration system, with external filters (0.5 μ m) and built-in 0.5 μ m filters to protect samples and fine tune valves.

9. Nondestructive drying and cleaning, which can be used for drying and cleaning Mofs, gel, biological samples, wafers and other samples

10. Durable and corrosion-resistant enclosure with pressure, temperature, and flow displays, making it easy for customers to monitor the instrument's operating status. Instrument dimensions: length, width, and height 60 * 55 * 48cm.

Supercritical dryer SCD-350MStandard accessories:

Flexible high-pressure LCO2 pipeline, 1.5 meters, connecting steel cylinders and instruments;

Flexible high-pressure LCO2 pipeline, 0.5 meters, connecting pump and instrument;

External filter (filtration accuracy: 0.5um), matched with high-pressure hose;

Two anti-static discharge pipelines, each 1.5 meters long;

Backup sample chamber sealing ring (10);

Two dedicated sample holders;

One set of installation tools;

User manual and usage guide;

One year warranty and lifetime free technical support.

Attachment 1 Configuration List

Product Name: Supercritical Drying Instrument Product Model: SCD-350M