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Triangular Flask with Screw Cap - Quality Laboratory Glassware from China Suppliers and Factory
Triangular Flask with Screw Cap
- ● Strong sealing ability
- ● Heat resistant and anti-corrosion
- ● Safe and durable
Transparent Triangular Flask with Screw Cap
Brown Triangular Flask with Screw Cap
Product Name: Triangular Flask with Screw Cap
Product Specifications: 50ml-2000ml
Product Material: High borosilicate glass
Product Introduction: High borosilicate glass has a very low coefficient of thermal expansion, about one-third that of ordinary glass. It can withstand high temperatures of 200 °C temperature difference, low expansion rate, high strength, high transmittance, and high chemical stability. The laboratory sterilization temperature standard is 121 °C/134 °C, and the bottle cap can withstand up to 140 °C high temperature. Triangular Flask with Screw Cap is a conical flask. Large base, stable placement. Small mouth size reduces the volatilization of volatile substances and facilitates the installation of other distillation devices, especially reflux devices.
Product Show
- ● High borosilicate material is acid and alkali resistant, not afraid of high temperatures.
- ● The sealing inner ring has strong sealing performance, effectively preventing leakage.
- ● Anti slip bottle bottom concave design stabilizes the bottle body.
Transparent Triangular Flask with Screw Cap Show
Brown Triangular Flask with Screw Cap Show
Product Details Show
Size Show
Triangular Flask with Screw Cap Specs
| Item | Description | Picture | Spec | Diameter (mm) | Height (mm) | Weight (g) |
|---|---|---|---|---|---|---|
| 1 | Triangular Flask with Screw Cap (transparent) |
|
50ml-GL25 | 50 | 87 | 50 |
| 2 | 100ml-GL32 | 63 | 116 | 89 | ||
| 3 | 150ml-GL32 | 67 | 119 | 103 | ||
| 4 | 250ml | 79 | 136 | 221 | ||
| 5 | 500ml | 98 | 173 | 292 | ||
| 6 | 1000ml | 124 | 210 | 455 | ||
| 7 | 2000ml | 160 | 277 | 623 | ||
| 8 | Triangular Flask with Screw Cap (brown) |
|
50ml-GL25 | 50 | 90 | 39 |
| 9 | 100ml-GL32 | 56 | 107 | 106 | ||
| 10 | 150ml-GL32 | 65 | 115 | 108 | ||
| 11 | 250ml | 79 | 138 | 231 | ||
| 12 | 500ml | 98 | 166 | 257 | ||
| 13 | 1000ml | 125 | 214 | 485 | ||
| 14 | 2000ml | 160 | 275 | 628 |
Precautions For Use
When heating the triangular flask, asbestos mesh should be placed on it to provide even heating. The triangular flask cannot be heated directly with a flame because the bottom of the flask is large. Heating directly with a flame can only burn to a local area, causing uneven heating of the glass and causing it to explode. When heating, the outer wall of the triangular flask must be wiped dry.
Frequently Asked Questions (FAQ)
What material is the Triangular Flask with Screw Cap made of?
It is made of high borosilicate glass, which features a very low coefficient of thermal expansion, high strength, high transmittance, and high chemical stability.
What are the temperature limits for the flask and its cap?
The flask can withstand high temperatures with a 200 °C temperature difference. The laboratory sterilization temperature standard is 121 °C / 134 °C, and the bottle cap can withstand up to 140 °C high temperature.
What specifications and capacities are available?
The capacities range from 50ml to 2000ml (such as 50ml, 100ml, 150ml, 250ml, 500ml, 1000ml, and 2000ml) in both transparent and brown glass options.
Why is the conical shape with a small mouth beneficial?
The large base ensures stable placement. The small mouth size reduces the volatilization of volatile substances and makes it easier to install other distillation or reflux devices.
How should the triangular flask be heated safely?
An asbestos mesh must be placed on the flask before heating to ensure even heat distribution. You must never heat it directly with a flame, as uneven heating can cause the glass to explode. Also, ensure the outer wall of the flask is wiped dry before heating.
Does the screw cap provide a reliable seal?
Yes, the screw cap is designed with a sealing inner ring that provides strong sealing performance to effectively prevent leakage.





