PYREX®®® brand filter flask, high standard series 5340.
This PYREX®® brand 500mL filter flask features sidearm tubulation for easy connection to filter pump hoses. Heavy wall, graduated on side, flat bottom. Necks finished to give excellent fitting for #7 rubber stopper.
The filter flask looks like an Erlenmeyer flask with a short arm coming out of it. The “arm” is designed to connect the flask to a vacuum source. When sealed on the top with a stopper or a Buchner funnel, the vacuum flask will hold a reduced pressure. Note the heavy the walls of this flask – they are designed to withstand reduced pressure without imploding.
Filter flasks are also called “side-arm flasks” and “vacuum flasks” and are used either for filtering solutions or for removing solvent under reduced pressure.
Specifications…
- Capacity: 500mL
- Material: Borosilicate glass code 7740
- Flask Style: Filtering
- Neck Style: Narrow Mouth
- Top Style: Heavy Duty Rim
- Rubber Stopper No.: 7
- Height: 184mm
- Outer Dimension: 106mm
- Graduation Range: 150 – 500 mL
- Graduation Interval: 50mL
- Autoclavable: Yes
- Upper Working Temp: 230°C (446°F)
- Upper Extreme Temp: 490°C (914°F
- Lower Working Temp: -230°C (-382°F
- Max. Thermal Shock: 160°C (320°F)
Safety Tips:
- Always replace glass laboratory containers that have become scratched or abraded. These defects will make the glass prone to breakage while in use.
- The maximum working temperature for PYREX®® glassware is 490°C. However, once the temperature exceeds 150°C, ensure that heating and cooling is achieved in a slow and uniform manner.
- Do not use hydrofluoric or hot phosphoric acid in glass.
- Hot alkalis will etch glass.
Corning and PYREX®® are registered trademarks of Corning Incorporated, Corning NY.
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