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Triangular Flask with Screw Cap - Premium Quality 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)
Q:What are the main material properties of the Triangular Flask?
The flask is made of high borosilicate glass, which has a very low coefficient of thermal expansion (about one-third of ordinary glass). This material provides high strength, high light transmittance, low expansion rate, and excellent chemical stability.
Q:What temperature limits can the flask and cap withstand?
The high borosilicate glass flask can withstand a thermal temperature difference of up to 200 °C, and standard laboratory sterilization temperatures of 121 °C/134 °C. The screw cap is designed to tolerate high temperatures of up to 140 °C.
Q:Why does the Triangular Flask feature a small mouth design?
The small mouth size is specifically designed to reduce the volatilization of volatile substances and to facilitate the connection and installation of other distillation systems, particularly reflux setups.
Q:Can I heat the Triangular Flask directly on an open flame?
No, the flask cannot be heated directly with a flame due to its large bottom area. Direct flame contact will cause localized heating and uneven thermal stress, which can lead to glass explosion. You must place an asbestos mesh under the flask for uniform heat distribution.
Q:What capacities and styles are available for these screw cap flasks?
The flasks are available in capacities ranging from 50ml to 2000ml (such as 50ml, 100ml, 150ml, 250ml, 500ml, 1000ml, and 2000ml). They are offered in both transparent and brown (amber) high borosilicate glass options.
Q:What preparation is needed before heating the flask?
Before heating, always ensure that the outer wall of the triangular flask is wiped completely dry, and make sure to use an asbestos mesh to ensure safe, even heating.





