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Borosilicate Glass Beaker 3.3 with Spout and Graduation - Quality Suppliers from China Factory
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.
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
- 1 Do not inject more than half of its capacity; too much can easily cause splashing.
- 2 When heating a beaker, place a wire gauze underneath to distribute the heat evenly.
- 3 Do not use products that are corroded, cracked, chipped, or scratched.
- 4 When heating, the outside of the beaker must be wiped dry.
Frequently Asked Questions (FAQ)
What are the key advantages of using Boro 3.3 glass laboratory ware? ▼
Boro 3.3 high borosilicate glass has an extremely low coefficient of thermal expansion, making it highly resistant to thermal shock. It can withstand rapid temperature changes up to 200°C, offers high mechanical strength, and excels in chemical stability against acids, saline solutions, and organic substances.
Why is it necessary to use wire gauze when heating a glass beaker? ▼
Direct exposure to an open flame can create concentrated hot spots on the glass surface, leading to uneven expansion and potential breakage. Placing a wire gauze under the beaker distributes the heat evenly across the bottom, ensuring safe and uniform heating.
What is the difference between a Low Form beaker and a High Form beaker? ▼
Low Form beakers (Griffin style) typically have a height that is approximately 1.4 times their diameter, featuring a spout for easy pouring. They are widely used for general laboratory tasks. High Form beakers (Berzelius style) are taller, with a height roughly twice their diameter, making them ideal for titrations, hot plate heating, and processes where splashing needs to be minimized.
Can these borosilicate glass beakers be sterilized in an autoclave? ▼
Yes, they can. The standard laboratory sterilization temperature limit for Boro 3.3 glass is 121°C/134°C. The glass body itself can handle much higher temperatures, while the matching bottle caps (if used) can typically withstand up to 140°C.
How can I tell if a glass beaker is no longer safe to use? ▼
Before every use, inspect the glassware closely. Any beaker showing signs of corrosion, deep scratches, chipping, or micro-cracks should be discarded immediately. Using compromised glassware under thermal stress or chemical reactions poses a high risk of shattering.