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Triangular Flask with Screw Cap - Quality Product 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
Important Safety Warning
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 benefits of a Triangular Flask with a Screw Cap?
The screw cap provides excellent sealing performance to prevent liquid leakage and minimize the loss of volatile substances. Combined with high borosilicate glass, it offers superior thermal shock resistance, chemical stability, and long-term durability for laboratory use.
What is the maximum temperature limit for this flask and its cap?
The high borosilicate glass body can handle high temperatures up to a 200 °C temperature difference and standard sterilization temperatures of 121 °C/134 °C. The screw cap itself is heat-resistant and can withstand temperatures up to 140 °C.
Why is high borosilicate glass used for this product?
High borosilicate glass has a very low coefficient of thermal expansion (about one-third of ordinary glass). This gives the flask high strength, high light transmittance, outstanding chemical stability, and exceptional resistance to acid, alkali, and high temperatures.
How do I heat the conical flask safely?
Always place an asbestos mesh under the flask to distribute the heat evenly. Avoid heating it directly with a flame because the wide base can experience localized overheating, causing the glass to expand unevenly and potentially rupture. Ensure the outer wall is completely dry before heating.
What sizes and specifications are available?
We offer a wide range of sizes from 50ml up to 2000ml in both transparent and brown glass configurations. Standard neck specifications include GL25 and GL32 to match different laboratory apparatus.





