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This glass flask is manufactured from GG17 borosilicate glass, designed for liquid mixing, heating, chemical reactions and volume calibration in commercial laboratory and production settings. It is available in multiple styles with graduated markings or standard ground joints, and supports use in pharmaceutical production, chemical processing and analytical testing workflows.
The flask is made of GG17 borosilicate glass, with a working temperature range from -20℃ to 150℃. The wall thickness tolerance is controlled at ±0.1mm, and the material demonstrates resistance to acids, alkalis and common organic solvents. This composition supports repeated use in routine experimental and production operations, with reduced risk of cracking under temperature fluctuations.
Volumetric styles of this glass flask feature laser-engraved graduations, calibrated in accordance with ISO 4788 standards. The volume measurement error is within ±0.05%, and the markings maintain legibility across long-term use. This level of calibration supports precise liquid volume measurement for standard solution preparation and analytical testing procedures.
The flask integrates a narrow, uniform neck and a flat, stable base to reduce tipping risk during use. Standard ground glass joints are compatible with common laboratory apparatus, creating a tight seal for closed-system operations. The smooth inner surface simplifies cleaning and prevents sample adsorption, supporting consistent results across repeated use cycles.
Each unit undergoes 100% strength testing and leak testing prior to delivery. The reinforced glass structure is engineered to reduce breakage risk during handling and operation. The non-porous glass surface prevents sample retention, which supports consistency in experimental and production outcomes.
This glass flask supports solution preparation, reagent mixing and small-batch reaction processes in pharmaceutical production and research settings. Its thermal stability and chemical compatibility align with requirements for sample handling and formulation development in pharmaceutical operations.
The flask is suitable for heating, mixing and conducting chemical synthesis or decomposition reactions in chemical processing and laboratory research settings. It accommodates reflux and routine synthesis workflows for both organic and inorganic chemistry applications.
Volumetric configurations of the flask support precise volume calibration for standard solution preparation in food testing and environmental monitoring laboratories. The clear glass allows visual observation of sample conditions, which supports sample storage and pretreatment workflows.
Capacity(ml) | O.D at neck(mm) | O.D at bulb(mm) | Height(mm) |
|---|---|---|---|
5 | 14 | 25 | 50 |
10 | 16 | 30 | 55 |
25 | 22 | 42 | 75 |
50 | 22 | 51 | 90 |
100 | 22 | 64 | 105 |
150 | 28 | 71 | 120 |
200 | 34 | 79 | 135 |
250 | 34 | 85 | 145 |
300 | 34 | 87 | 160 |
500 | 34 | 105 | 180 |
1000 | 42 | 131 | 220 |
2000 | 50 | 166 | 280 |
3000 | 50 | 187 | 310 |
5000 | 50 | 220 | 365 |
Nominal Capacity (ml) | Approximate Graduation Points (ml) | Calibration Condition | Division Value (ml) |
|---|---|---|---|
50 | 40, 30, 20 | 20°C ±1ml | 1 |
100 | 50 | - | 0.5 |
300 | 200, 100, 75 | - | - |
500 | 400, 300, 200, 150 | - | - |
1000 | 800, 600, 400 | - | - |
2000 | 1500, 1000, 500 | - | - |
Place the flask on a stable, heat-resistant surface before use. Add liquid or solid materials gradually, and avoid overfilling to leave headspace for mixing or heating. For heating operations, use a water bath, oil bath or heating mantle; do not heat the flask when empty. Gently swirl the flask to mix contents, and use a stopper if containment is required to prevent evaporation or contamination.
