Merck Aldrich Sure/Stor flask

Aldrich® Sure/Stor™ Flask

Capacity 1,000 mL, Plastic-Coated Glass

Designed for safe, reliable storage and dispensing of air-sensitive and odoriferous chemicals, pyrophorics, alkyl lithiums, Grignards, corrosives, and purified or deuterated solvents.

Features

• High-vacuum PTFE valve-to-glass seal eliminates air contamination and septum leakage after needle penetration
• Heavy-wall borosilicate glass construction
• Removable side-arm hose connector for easy attachment of vacuum and inert gas lines
• For long-term storage, replace hose connector with a rubber septum for secondary protection
• Supplied with 2 septa (replacement septa: Z106496)
• Plastic-coated flasks reduce breakage risk and contain spills

*The thermoplastic coating softens above 110 °C and becomes less protective. Tests show 100% effectiveness in preventing flying glass when a fully evacuated flask is broken.

Sure/Stor Technique

1. Connect flask to vacuum line to remove air and odor, then refill with inert gas.
2. Open PTFE valve slightly to allow syringe needle or pipette to pass through septum inlet and reach stored liquid.
3. Close PTFE valve after needle removal and pump out again to remove air and odor.
   • Use rubber septa Z553913 or Z554030 on septum inlet.
4. For long-term storage, replace hose connector with a rubber septum for secondary protection.

Specifications

NOTICE: High-quality PTFE valves are used on Aldrich brand glassware, tested and approved by the Merck Glass Center.