Sigma-Aldrich

Micro Reaction Vessels are cone shaped inside for easy removal of small samples. They are made of heavy-wall borosilicate glass and are supplied with PTFE-faced red rubber septum and cap. This glassware can be autoclaved or centrifuged. The septa can not be autoclaved. Micro Reaction Vessels are available in either glass or amber glass.

Replacement caps and septa:

• Clear glass: 0.3-2 mL (Caps: 27154, Septa: 27156)

• 3-5 mL (Caps: 27176, Septa: 27178)

• Amber glass: 1 mL: (Caps: 27120-U, Septa: 27145)

• 2-5 mL: (Caps: 27176, Septa: 27178)

Mininert valves are available for both screw top and crimp top vials. These Valves are available in the following sizes:

• 13/425
• 15/425
• 18/400
• 24,400 and
• 20 mm crimp top

Description:

General description

Reliable Wheaton "180" brand low-potassium glass. White 22 mm caps have tops suitable for writing. Vials with caps attached are packed in individual cells in trays of 100.

Properties:

Material	foamed PE liner
	glass vial
	polypropylene cap
Packaging	pkg of 500 ea
Size	28 mm × 61 mm
Volume	20 mL
Fitting	thread 22-400

Barrier Septa (maximum temperature 350 °C. Silicone bonded to aluminum. Use in sealing applications where non-permeability and low volatility are required at temperatures above 177 °C. Affected by many organic solvents.

Butyl (maximum temperature 200 °C). Use with many organic solvents: acetic acid (<50%), acetonitrile, acetone, alcohols, DMSO, phenol. Not compatible with alkanes, benzene, carbon disulfide, chlorinated solvents, cyclohexane.

Red Rubber (maximum temperature 100 °C). Use with many hydrocarbons, acetonitrile, alcohols, cyclohexane. Not compatible with chlorinated solvents.

Silicone (maximum temperature 250 °C). Use with acetone, alcohols, DMSO, ether, aqueous samples. Affected by many organic solvents: acetonitrile, benzene, chloroform, hexane, pyridine, tetrahydrofuran, toluene.

PTFE/rubber (maximum temperature 100 °C). Use with most organic (until pierced). Resistant to chlorosilanes.

PTFE/Silicone (maximum temperature 250 °C). Use with most organic (until pierced). Not recommended for use with chlorosilanes.

PTFE/Thermoseal (maximum temperature 300 °C. An improved grade of silicone septa that can be used at higher temperatures. Affected by many organic solvents.

Viton (maximum temperature 315 °C). Resists mineral oil, aliphatic and aromatic hydrocarbons, high concentrations of acids, high temperatures. Not compatible with strong bases, ketones, low molecular weight esters.

PTFE Liner (maximum temperature 225 °C). The thickness of this material is 0.010". This material is used as an inert barrier for use with hydrocarbons and alcohols.

Features and benefits:

• Proprietary silane treatment shields active silanol groups on untreated glass surfaces.
• Improved recovery of submicroscopic polar compounds.
• Save time and money.

Microtiter and multiwell plates, 96 well, 384 well and 1536 well, are offered, along with sealing film and accessories. The plates are manufactured from polystyrene or polypropylene and include various style bottoms, plate colors, plate formats and treatments for a multitude of applications from vendors such as Corning, Greiner, Nunc, etc.