PTFE Digestion Vessel is a corrosion-resistant, high-temperature and high-pressure reaction vessel used for laboratory sample pretreatment, mainly used for acid digestion, microwave digestion, hydrothermal synthesis and other experiments. Its core material is polytetrafluoroethylene (PTFE), which has extremely strong chemical inertness, can withstand strong acids (such as hydrofluoric acid, aqua regia), strong bases and organic solvents, and can remain stable under high temperature and high pressure environments.
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(1) PTFE Liner
● Material: High-purity PTFE (polytetrafluoroethylene), temperature range -200°C ~ 260°C.
● Features:
Chemically inert, resistant to almost all acids (including HF), alkalis and organic solvents.
Low adsorption, avoid sample contamination.
Smooth surface, easy to clean, prevent cross contamination.
(2) Pressure Jacket
● Material:
Stainless steel (SS304/SS316): suitable for conventional digestion.
PEEK (polyetheretherketone): corrosion-resistant and lightweight, suitable for microwave digestion.
Composite materials (such as ceramic + PTFE): enhance pressure resistance.
Function: provide mechanical support to prevent the PTFE liner from deforming or rupturing under high pressure.
(3) Sealing Mechanism
● O-ring seal (fluororubber, PTFE coating)
● Screw compression structure (to ensure no leakage under high pressure)
● Pressure relief valve (optional): to prevent overpressure explosion.
According to the application scenario, PTFE Digestion Vessel can be divided into:
(1) Microwave Digestion Vessel
Pressure range: usually 30~150 bar, temperature range 200~300°C.
(2) Hydrothermal/Solvothermal Autoclave
Used for hydrothermal synthesis of nanomaterials, crystal growth, etc.
Pressure resistance: 5~10 MPa, temperature resistance: 200~250°C.
(3) Acid Digestion Bomb
Used for closed acid digestion (such as HF digestion of silicate).
● Sample pretreatment
Used in food, biology, geology, metallurgy, environmental protection and other fields, to process soil, water, atmospheric particulate matter, food, sludge, rare earth and other samples.
Determination of trace elements and trace elements (such as heavy metals such as Pb, Cu, Zn, Cd).
● Reaction vessel
As a high temperature, high pressure and corrosion resistant reaction vessel, it is suitable for organic synthesis, hydrothermal synthesis, crystal growth and other experiments.
● Special application
Can replace platinum crucible for trace element analysis in high purity alumina.
In CODcr determination, it has strong resistance to chloride ion interference and is suitable for high chloride water samples.
● Chemical inertness
Avoid reaction between the container and the sample to ensure the accuracy of the analysis results.
● Efficient digestion
High temperature and high pressure environment accelerates sample decomposition and shortens the experimental time.
● Safety and environmental protection
Good sealing, reducing acid mist leakage and environmental pollution.
Low blank value of metal elements (such as lead content <10⁻¹¹g/ml), improving analysis accuracy.
● Cost-effectiveness
High durability and long service life.
Easy to operate, no professional training required, low maintenance cost.
● Environmental science: detection of pollutants in soil and water.
● Food safety: analysis of heavy metals and pesticide residues in food.
● Geological exploration: processing rock and ore samples.
● Material research: exploration of new material composition and performance.
● PFA digestion tank: translucent, melting point of about 308℃, stronger resistance to solvent penetration, but higher cost.
● TFM digestion tank: modified PTFE, less deformation under high temperature and pressure, higher surface finish, but more expensive
Check the sealing regularly to prevent leakage.
Professionally customized PTFE digestion vessels, made of 100% pure materials, resistant to strong acids and alkalis (aqua regia, hydrofluoric acid, etc.), ensuring zero pollution during sample digestion. Get a quote now >>
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With our rich industry experience, advanced technical strength and high-quality services, we provide one-stop plastic parts custom processing solutions for global customers. No matter how complex your needs are, we can provide you with satisfactory products and services. We look forward to working with you!
The whole is made of excellent materials, in line with standards, and no cutting corners!
The surface is smooth and burr-free, the force is even, the structure is stable, beautiful and practical, and the service life is long.
The dimensional accuracy error can be controlled within 0.002MM.
Various specifications can be customized according to customer requirements. Customization is also available according to drawings and samples.
Our typical order minimum for stock items is $50 however this can vary greatly by product. For products manufactured by CYLEX, we have a minimum order of $300.
Stock items can usually be shipped same day if need. Manufactured items are normally 2 – 4 weeks, but that is dependent on the design and material requirements.
Customized solutions are available in a variety of materials: polytetrafluoroethylene (PTFE)-based compounds, Fluoroplastic family (PCTFE,PFA,ECTFE, FEP), modified-PTFE( Alternative Rulon series) , plastics(PEEK,PAI,PEI), UHMWPE,POM Acetal, Nylon, silicone, elastomers and Complex customized components (and multi-component products) can be manufactured using a range of different innovative processes, including compression molding, Isostatic molding, Extrusion, Skiving, Etching, CNC machin ing, dipping and coating techniques.
O-rings, Gaskets, Extrusions, Bushings, Spring Energized Seals, Engineered Seals, Sealing Systems, and Custom Plastic Shapes. Generally, any type of product you would generically label as a seal. We also offer complete technical support for our products.
Yes, we manufacture our own line of materials, seals,bearings, and plastic parts.
Yes, we can design products, or complete sealing systems to meet your requirements. CYLEX offers complete technical support for our product line.
From cryogenic to a few thousand degrees depending on the application and type of seal required.
We have designed seals for use in full vacuum, and seals used up to 345MPa.
In house we have machining capabilities, CNC lathes and mill, and manual lathe and mill. We also offer assembly and kitting.
Cantilever, Canted Coil, Helical, Garter Springs, and O-rings.
we can turn parts up to 1000mm in diameter.We have made seals with an inner diameter as small as0.5mm.
