A specially moulded seal with a PTFE insert. Sealing surface of Butyl and PTFE affects a more positive seal than non-PTFE-faced septa. Ideal choice for temperatures below 125°C. Good sealing characteristics, excellent resistance to most solvents with reduced coring and high puncture tolerance. PTFE provides increased chemical resistance.
Blue aluminum, clear PTFE/red rubber septa 100/pk Green aluminum, clear PTFE/red rubber septa 100/pk 5181-1216 Red aluminum, clear PTFE/red rubber septa 100/pk 5181-1217 Silver aluminum, PTFE/silicone/PTFE septa 100/pk Silver aluminum, PTFE/silicone septa 100/pk Silver aluminum, PTFE/butyl rubber septa 500/pk 5061-3370
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Thermogreen ® Injector Septa, extremely low bleed over a wide range of inlet temperatures -100 to 350 °C. Easier needle penetration and high puncture tolerance make this septum ideal for autosamplers. This septum is already conditioned and ready to use. Compare this item.
Rubber septa. Used primarily for routine analysis in gas chromatography. Offers moderate ability to reseal and good chemical inertness. Not recommended for multiple injections or holding samples for further analysis. PTFE is protective layer that once broken exposes rubber to chemical attack.
PTFE or Polytetrafluoroethylene is a versatile and high-performance fluoropolymer made up of fluorine and carbon atoms and is highly used as a non-stick coating in kitchen cookware. PTFE is a hydrophobic and most chemically inert polymer, making it unaffected by a lot of gases, vapours, and fluids. It offers excellent mechanical properties like thermal insulation and corrosion resistance. PTFE
a barrier (usually PTFE) and one to allow for resealing (usually silicone) • Tri-layer (also known as a sandwich septum): Still made from two distinct materials – usually silicone surrounded on both sides by PTFE Table 1. Septa chemical compatibility. PTFE/Silicone/PTFE* PTFE/Red rubber Fluoroelas tomer PTFE/Butyl
Oct 4, 2022 · Storage and Transport. Hazard Controls. Waste and Decontamination. Emergencies. Related SOPs and Fact Sheets. References. Learn about the standard operating procedures on corrosive chemicals, which are substances that cause visible destruction or permanent changes in human skin tissue at the site of contact, or are highly corrosive to steel.
Thermo Scientific Nalgene. Maintain an airtight seal on the Thermo Scientific™ Nalgene™ Transparent Polycarbonate Classic Design Desiccator without the need of vacuum grease which can act as a possible lab contaminant. Lightweight and nearly unbreakable, the desiccator can be used under full-vacuum and non-vacuum.
Ideal for use with reactive and corrosive chemicals. The melting point of PTFE 1 is 600°K (327°C / 620°F) Low temperature: maintains high strength, toughness and self-lubrication as low as 5°K (-268°C /-450°F) and good flexibility at 194°K (-79°C / -110°F) NOT compatible with certain alkali metals and fluorinating agents such as xenon
Hamilton. High Temperature Septa is made of preconditioned PTFE/silicone rubber and is 3.175 mm (0.125 in.) thick. The average life of these septa is up to 100 injections with a 26s gauge needle. The maximum operating temperature is 212° C. Preconditioned PTFE/silicone rubber septa, 3.175 mm. Compare this item.
Vial septa are available in a variety of materials. Septa, tan PTFE/silicone (diam. x thickness 8 mm x 1.5 mm) are sized to fit screw top vials. They are suitable for use with most organics (until pierced) and are not recommended for use with chlorosilanes. Compare this item.
Mar 31, 2022 · PTFE disk septa. A solid disk 0.010″ thick, our PTFE stands better than the most aggressive solvents. At least when it comes to chemical inertness. Most standard gauge metal HPLC needles can penetrate the thin membrane. Do not use PTFE septa with the following because you can’t release PTFE septa: 1. volatile solvents, 2. fast cycle periods,
Septa A wide range of serrated and non-serrated septa, and sleeve stoppers are available for use as temporary closures for glassware joints, tubes, bottles, NMR tubes, ampules, and cannulation techniques in air-sensitive chemistry.
Accessory Product Data Sheet Septum Selection Guide 411 Madrid Avenue Torrance, CA 90501 Tel: 310-212-0555 Fax: 310-328-7768 www.phenomenex.com
Overview Diferent septa material for LC and GC applications There are many diferent types of materials used to produce the septa found in LC and GC vial caps. This document will provide you with the technical guidance you need in order to make the right selection. Choosing the right septa
