Fisherbrand 25ml Squat Form Glass Beakers (Pack of 10)
Constructed from borosilicate glass and with a spout and graduations, the Fisherbrand 25ml Squat Form Glass Beakers (Pack of 10) are ideal glass chemical beakers for laboratory usage. Excellent for storing, mixing, and heating liquids, these glass beakers meet the high standard and quality required for laboratory usage.
What's Included?
Technical Specifications
- Type: Beaker
- Volume Capacity: 25ml
- Height: 50mm
- Diameter: 34mm
- Colour: Translucent
- Material: Borosilicate Glass
- Scale: White Graduated Scale
- Style: Low Form
- Finish: Matte
- Includes: Spout
- Graduated: Yes
- Certifications: ISO 3819, DIN 12331
Key Features
- Borosilicate glass is chemical and heat resistant, low coefficient and allows for direct seals
- Squat form with spout and graduations allows for easy and mess-free use, keeping labs safe
- Meet standards ISO 3819 and Din 12331 for internationally acceptable and safe laboratory usage
- Designed to hold 25ml, these beakers hold small amounts of liquid for accurate readings
- Graduated design and matte finish increases reading accuracy in lab experiments and research
- Beaker design with wider opening allows stirring of chemicals and substances
- Beakers come in a pack of ten for cost efficiency and convenience, perfect for all laboratories
What Are The Fisherbrand Lab Glass Beakers?
The Fisherbrand glass beakers are graduated squat form beakers and are designed for general purpose use in chemistry labs. These glass beakers can be used as distillation receiving containers, to hold different layers in an extraction, as reaction flasks, to heat solvent crystallisations, and more.
What Type of Glass Are These Beakers Made Of?
These beakers are made entirely out of borosilicate glass. This type of glass has various benefits important for experimentation:
- Chemically resistant, making it ideal for use with most substances, particularly acids
- Allows high maximum temperatures of up to around 500°C for a broad range of experiments
- Cover a wide range of thermal expansions, enabling direct seals with various metals and alloys
- Low coefficient of thermal expansion makes these shatter-resistant under rapid temperature changes
What Are Some Of the Other Physical Properties of Borosilicate Glass?
The physical properties of borosilicate glass are as follows:
- Coefficient of expansion (20 to 300ºC): 3.3 x 10-5/ºC
- Density: 2.23g/cm3
- Refractive index (Sodium D line): 1.474
- Dielectric constant (1MHz, 20ºC): 4.6
- Specific heat (20ºC): 750J/kgºC
- Thermal conductivity (20ºC): 1.14W/mºC
- Poissons Ratio (25 to 400°C): 0.2
What Is The Typical Chemical Composition of Borosilicate Glass?
Below is a table demonstrating the typical chemical composition of borosilicate glass (% by weight):
| Component | Percentage (approx.) |
| SiO2 | 80.6% |
| B2O3 | 13.0% |
| Na2O + K2O | 4.0% |
| AI2O3 | 2.3% |
| Miscellaneous traces | 0.1% |
Are These Chemical Beakers Certified?
Yes, these Fisherbrand glass chemical beakers are certified to ISO 3819, DIN 12331. This standard specifies requirements for an internationally acceptable series of glass beakers for laboratory use.
Learn More on Fisherbrand Lab Glassware
To learn more on Fisherbrand glassware and their uses please see the following brochure:
