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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 are the main advantages of using a Triangular Flask with a Screw Cap?
The flask features strong sealing ability to prevent leakage, excellent heat resistance, anti-corrosion properties, and a safe, durable design suitable for rigorous laboratory applications.
What material is the flask made of and what are its thermal properties?
It is made of high borosilicate glass, which has a very low coefficient of thermal expansion (about one-third of ordinary glass). It can withstand a temperature difference of 200 °C, offering high strength, high light transmittance, and exceptional chemical stability.
What are the sterilization and temperature limits for this flask and its cap?
The standard laboratory sterilization temperature for the glass bottle is 121 °C / 134 °C. The matching screw cap is highly heat-resistant and can withstand temperatures up to 140 °C.
Why is the flask designed with a narrow mouth and a wide base?
The large base ensures stable placement on flat surfaces. The small mouth reduces the evaporation of volatile substances and simplifies the connection of other distillation or reflux setups.
How should the triangular flask be heated safely?
Always place an asbestos mesh under the flask to ensure even heat distribution. Never heat it directly with an open flame, as the large bottom area can suffer uneven thermal stress and explode. Additionally, ensure the outer wall is wiped completely dry before heating.