Vials

Vial, Closure and Septa Selection Guide

Vial, Closure and Septa Selection Guide

Use this as a guide to selecting the products you need. For technical assistance, contact Supelco Technical Service at (800) 359-3041 or e-mail us at techservice@sial.com.

   
  Vial Varieties
  Cap Varieties
  Selecting Screw Top Vials and Components
  Septa for Screw Cap Vials

Vial Varieties back to top

ABC Screw Top Vials
These vials have a unique thread design that allows you to screw on the caps, and still use them in a robotic autosampler.

LVI Vials.
These large opening vials have a 0.3 mL cone-shaped insert.

Screw Top Vials.
These standard and large opening vials are available in both clear and amber glass. They come with a variety of closures and septa.

Crimp Top Vials.
These standard and large opening vials are used with aluminum seals. The 11 mm aluminum seals have 6 mm openings.

Shell Vials.
Cylindrical shell vials compatible with plug-style needle closures to make syringe extraction easier.

Snap-Top Vials.
For use with snap ring seals as well as standard aluminum seals.

Cap Varieties     back to top
Phenolic hole cap
Temp. limit 149°C
Polypropylene hole cap
Temp. limit 135°C
Phenolic solid cap w/Teflon seal
Temp. limit 205°C
Polypropylene solid cap w/aluminum seal
Temp. limit 135°C

Selecting Screw Top Vials and Components   back to top
Volume Vial O.D. x height Cap Thread
(GCMI Spec.)
Septum
Diameter
2 mL (0.5 drams) 12 x 32 x 4.6 (I.D.) mm 8-425 8 mm
2 mL (0.5 drams) 12 x 32 x 6.0 (I.D.) mm 10-425 10 mm
4 mL (1 dram) 15 x 45 mm 13-425 11 mm
7 mL (2 drams) 17 x 60 mm 15-425 13 mm
15 mL (4 drams) 21 x 70 mm 18-400 16 mm
22 mL (6 drams) 23 x 85 mm 20-400 18 mm
40 mL (10.7 drams) 29 x 81 mm 24-400 22 mm
40 mL (10.7 drams) 28 x 98 mm 24-400 22 mm

Septa for Screw Cap Vials back to top
Compatibility/Incompatibility of Septa
Barrier (maximum temp. 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 (see examples under Silicone).
Butyl (maximum temp. 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 temp. 100 °C)
Use with many hydrocarbons, acetonitrile, alcohols, cyclohexane. Not compatible with chlorinated solvents.
Silicone (maximum temp. 250 °C)
Use with acetone, alcohols, DMSO, ether, aqueous samples. Affected by many organic solvents: acetonitrile, benzene, chloroform, hexane, pyridine, tetrahydrofuran, toluene.
Teflon/Rubber (maximum temp. 100 °C)
Use with most organics (until pierced). Resistant to chlorosilanes.
PTFE/Teflon/Silicone (maximum temp. 250 °C)
Use with most organics (until pierced). Not recommended for use with chlorosilanes.
PTFE/Thermoseal (maximum temp. 300 °C)
An improved grade of silicone septa that can be used at higher temperatures. Affected by many organic solvents (see examples under Silicone).
Viton (maximum temp. 260 °C)
Resists mineral oil, aliphatic and aromatic hydrocarbons, high concentrations of acids, high temperatures. Not compatible with strong bases, ketones, low molecular weight ester
 
Durometer is the measurement of the hardness of the septum material. The higher the durometer number the harder the septa will be. Conversely the lower the number, the softer the septa material will be.