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Borosilicate Glass Beaker 3.3 with Graduation and Spout – China Suppliers and Factory for Lab Use
Glass Measuring Cylinder
- High borosilicate glass
- Stable base
- Clear scale
Beaker Low Form
Beaker High Form
Product Name: Boro 3.3 Glass Beaker
Product Type: 5–2000ml
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 ℃ temperature difference, low expansion rate, high strength, 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.
It can serve as a material reactor, determine combustion products, be used to dissolve and crystallize a substance, hold solutions for evaporation, concentration, or heating, and also be used to hold corrosive solid chemicals for weighing.
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 ℃ temperature difference, low expansion rate, high strength, 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.
It can serve as a material reactor, determine combustion products, be used to dissolve and crystallize a substance, hold solutions for evaporation, concentration, or heating, and also be used to hold corrosive solid chemicals for weighing.
Product Show
- Clear markings, high transparency.
- The bottom of the cup is flat, heats evenly, and is not easily shattered due to rapid heating.
- Uniform wall thickness, no air bubbles.
Beaker Low Form Show
Beaker High Form Show
Product Details Show
Size Show
Boro 3.3 Glass Beaker Specs
| Description | Picture | Spec (ml) | Outer Diameter (mm) | Height (mm) | Weight (g) |
|---|---|---|---|---|---|
| Beaker Low Form |
|
5 | 22 | 31 | 6 |
| 10 | 25 | 39 | 9 | ||
| 25 | 35 | 56 | 23 | ||
| 50 | 41 | 61 | 29 | ||
| 100 | 50 | 76 | 51 | ||
| 150 | 60 | 86 | 70 | ||
| 200 | 65 | 93 | 90 | ||
| 250 | 70 | 99 | 105 | ||
| 300 | 75 | 110 | 123 | ||
| 400 | 80 | 113 | 159 | ||
| 500 | 86 | 125 | 177 | ||
| 600 | 90 | 125 | 197 | ||
| 800 | 101 | 139 | 252 | ||
| 1000 | 109 | 151 | 304 | ||
| 2000 | 133 | 170 | 575 | ||
| 3000 | 154 | 213 | 898 | ||
| 5000 | 172 | 274 | 1107 | ||
| 10000 | 218 | 365 | 2617 | ||
| 20000 | 283 | 431 | 3719 | ||
| Beaker High Form |
|
50 | 39 | 71 | 32 |
| 100 | 46 | 80 | 46 | ||
| 150 | 55 | 92 | 64 | ||
| 250 | 60 | 121 | 98 | ||
| 300 | 65 | 133 | 118 | ||
| 400 | 70 | 139 | 137 | ||
| 500 | 76 | 146 | 159 | ||
| 600 | 80 | 154 | 196 | ||
| 800 | 90 | 180 | 281 | ||
| 1000 | 96 | 188 | 318 | ||
| 2000 | 122 | 240 | 429 | ||
| 3000 | 139 | 275 | 730 |
Precautions For Use
- Do not inject more than half of its capacity; too much can easily cause splashing.
- When heating a beaker, place a wire gauze underneath to distribute the heat evenly.
- Do not use products that are corroded, cracked, chipped, or scratched.
- When heating, the outside of the beaker must be wiped dry.
Frequently Asked Questions
What is Boro 3.3 glass?
Boro 3.3 glass (High Borosilicate Glass) is a high-grade laboratory glass with silica and boron trioxide as the main constituents. It is highly valued for having a very low coefficient of thermal expansion, making it highly resistant to thermal shock and chemical corrosion.
Can these glass beakers be heated directly over an open flame?
While Boro 3.3 glass can withstand high thermal stress, you should always place a wire gauze underneath the beaker when heating to distribute heat evenly and prevent localized hotspots that could lead to cracking. Additionally, make sure the outer wall of the beaker is completely dry before heating.
What is the difference between Low Form and High Form beakers?
Low Form beakers (Griffin style) are wider and shorter with a height of roughly 1.4 times their diameter, making them ideal for mixing, dissolving, and decanting. High Form beakers (Berzelius style) are taller and narrower, which is preferred for titration processes and heating on hot plates.
Are these glass products autoclave-safe for sterilization?
Yes, Boro 3.3 glass beakers and measuring cylinders are completely safe for standard laboratory autoclaving. They can easily withstand standard sterilization temperatures of 121°C and 134°C.
Can I use a glass beaker to measure precise liquid volumes?
No, the graduations on a beaker are approximate and intended for rough estimation only. For highly accurate volumetric measurements, you should use a dedicated glass measuring cylinder, pipette, or volumetric flask.