Glass Beaker

Borosilicate Glass Beakers – Technical Specifications

(High-Performance Laboratory Containers)


1. Material Properties

Characteristic Boro 3.3 Glass Specification
Composition 81% SiO₂, 13% B₂O₃, 4% Na₂O/K₂O, 2% Al₂O₃
Thermal Shock Resistance ΔT ≤ 160°C (rapid cooling)
Max Operating Temp 500°C (continuous), 1450°C (short-term)
Chemical Resistance Resists all acids (except HF) and organic solvents
Light Transmittance >95% (400-700 nm visible spectrum)

2. Product Line Overview

Capacity Height Diameter Graduation Interval
100 mL 90 mm 50 mm 10 mL (“APPROX”)
250 mL 110 mm 65 mm 25 mL
500 mL 130 mm 80 mm 50 mL
1000 mL 160 mm 100 mm 100 mL

Note: All graduations are approximate (±5% tolerance).


3. Key Features

✔ Spout design: Pouring without drips
✔ Wide base: Enhanced stability
✔ Etched markings: Acid-resistant graduations
✔ Autoclavable: Reusable after sterilization


4. Comparative Advantages

Property Borosilicate vs. Soda-Lime Glass
Thermal Shock 3× better resistance
Chemical Durability Withstands concentrated acids
Cost 2-3× higher but longer lifespan

5. Usage Guidelines

  • Heating: Use wire gauze with ceramic center for even heat distribution

  • Cleaning: Avoid abrasive scrubbers to prevent surface scratches

  • Storage: Stack with protective liners to prevent chipping

Safety Note: Discard if cracks/chips appear – compromised glass may fail under thermal stress.


6. Compliance & Standards

  • Meets ASTM E960 (lab glassware)

  • ISO 4797 (thermal shock testing)

  • CE marked for EU markets

Erlenmeyer flask 1000 ml

A borosilicate glass Erlenmeyer flask has several key characteristics:

Materials:
It is made of borosilicate 3.3 glass (such as Pyrex™ or Duran®), known for its high resistance to thermal shock and chemical corrosion.

Capacity:
The flask pictured has a capacity of 1000 ml, with graduations indicating volumes (e.g., 400 ml, 600 ml).

Shape:
Its conical shape ensures good stability and facilitates mixing and heating liquids. The neck can be narrow or wide.

Graduations:
It has graduations (often white enamel) for approximate volume measurements.

Resistance:
Borosilicate glass provides excellent heat resistance, allowing direct heating and autoclaving for sterilization.

Use:
It is commonly used in laboratories for mixing, heating, cooling, and storing liquids, as well as for titrations and cell cultures.

Test Tubes 25 ml

The characteristics of a test tube like the one pictured include the following:

Materials:
Clear glass (such as soda-lime glass or borosilicate).

Shape:
A narrow cylindrical body with a base that can be round (U-shaped), conical (V-shaped), or flat, and a top opening. The image shows a flat bottom.

Dimensions and Capacity:
Test tubes come in various sizes and volumes. The one pictured is graduated up to 25 ml, with an accuracy indication of “±0.2”. The visible graduations are 5, 10, 15, 20, and 25 ml.

Use:
Used in laboratories to hold, mix, and heat chemicals, or for specific analyses such as food quality control or blood tests. The object in the image, being graduated, is more specifically a flask, used to precisely measure liquid volumes.

Resistance:
Resistance to temperature changes and chemicals varies depending on the type of glass.

Graduated Cylinder 1000 ml

A graduated cylinder is a laboratory instrument used to accurately measure liquid volumes. Its main characteristics are as follows:

Materials:
This is a graduated cylinder made of borosilicate glass, known for its resistance to chemicals and thermal shock.

Shape and Structure:
It has an elongated cylindrical shape and is equipped with a stable base (here, a round base, although hexagonal bases also exist) and a pouring spout to facilitate the transfer of liquids.

Graduations:
The cylinder is clearly graduated, allowing the volume of liquid contained to be read. In the image, the graduations are visible from 100 ml to 1000 ml, indicating a maximum capacity of 1 liter.

Accuracy:
Graduated cylinders are designed for precise volume measurement, often calibrated “to contain” (TC or In) and classified according to accuracy standards (such as Class ).

Heating Mantle

The 250 ml laboratory heating mantle.
Key Features:

Capacity: Designed to heat round-bottomed flasks with a capacity of 250 ml.

Temperature Control: It is equipped with electronic temperature control, allowing precise heating control.

Maximum Temperature: Can reach a maximum temperature of 370°C, or even 450°C for some models.

Power: Typically 150 W.

Construction: Chemical-resistant steel or polypropylene outer shell, with thermal insulation made of mineral fiber wool or molded silica.

Safety: Some models include protective fuses and a “cool-touch” outer casing to minimize the risk of burns.

Additional Features: Some heating mantles of this capacity can also incorporate magnetic stirring, allowing the contents of the flask to be heated and stirred simultaneously.

Burette Stand

The burette stand features the following:

Materials:
Made of high-quality aluminum alloy or plastic for the clamp, and metal (such as iron or aluminum) for the stem and base, providing durability and corrosion resistance.

Functionality:
Designed to securely hold burettes during laboratory titration experiments, particularly on a titration table.

Clamp Design:
The clamp is often a “butterfly” or “double” type, allowing two burettes to be held simultaneously. Its jaws have sufficient elasticity to hold the burettes securely without obscuring the graduations.

Stability:
The heavy base and sturdy stem ensure stability during laboratory manipulations.

Use:
Easy to use for securing and adjusting the position of burettes, making it an essential accessory for science laboratories, schools, and factories.

Erlenmeyer flask 250 ml

A borosilicate glass Erlenmeyer flask has several key characteristics:

Materials:
It is made of borosilicate 3.3 glass (such as Pyrex™ or Duran®), known for its high resistance to thermal shock and chemical corrosion.

Capacity:
The flask pictured has a capacity of 250 ml, with graduations indicating volumes (100,150, 200, 250ml).

Shape:
Its conical shape ensures good stability and facilitates mixing and heating liquids. The neck can be narrow or wide.

Graduations:
It has graduations (often white enamel) for approximate volume measurements.

Resistance:
Borosilicate glass provides excellent heat resistance, allowing direct heating and autoclaving for sterilization.

Use:
It is commonly used in laboratories for mixing, heating, cooling, and storing liquids, as well as for titrations and cell cultures.

Test Tubes 10ml

The characteristics of a test tube like the one pictured include the following:

Materials:
Clear glass (such as soda-lime glass or borosilicate).

Shape:
A narrow cylindrical body with a base that can be round (U-shaped), conical (V-shaped), or flat, and a top opening. The image shows a flat bottom.

Dimensions and Capacity:
Test tubes come in various sizes and volumes. The one pictured is graduated up to 10 ml, with an accuracy indication of “±0.2”. The visible graduations are 1, 2, 4, 6, 8and 10ml.

Use:
Used in laboratories to hold, mix, and heat chemicals, or for specific analyses such as food quality control or blood tests. The object in the image, being graduated, is more specifically a flask, used to precisely measure liquid volumes.

Resistance:
Resistance to temperature changes and chemicals varies depending on the type of glass

Erlenmeyer flask 100ML

A borosilicate glass Erlenmeyer flask has several key characteristics:

Materials:
It is made of borosilicate 3.3 glass (such as Pyrex™ or Duran®), known for its high resistance to thermal shock and chemical corrosion.

Capacity:
The flask pictured has a capacity of 100 ml, with graduations indicating volumes (40,60, 80, 100ml).

Shape:
Its conical shape ensures good stability and facilitates mixing and heating liquids. The neck can be narrow or wide.

Graduations:
It has graduations (often white enamel) for approximate volume measurements.

Resistance:
Borosilicate glass provides excellent heat resistance, allowing direct heating and autoclaving for sterilization.

Use:
It is commonly used in laboratories for mixing, heating, cooling, and storing liquids, as well as for titrations and cell cultures.

Erlenmeyer flask 500 ml

A borosilicate glass Erlenmeyer flask has several key characteristics:

Materials:
It is made of borosilicate 3.3 glass (such as Pyrex™ or Duran®), known for its high resistance to thermal shock and chemical corrosion.

Capacity:
The flask pictured has a capacity of 500 ml, with graduations indicating volumes (e.g., 400 ml, 300 ml, 200 ml).

Shape:
Its conical shape ensures good stability and facilitates mixing and heating liquids. The neck can be narrow or wide.

Graduations:
It has graduations (often white enamel) for approximate volume measurements.

Resistance:
Borosilicate glass provides excellent heat resistance, allowing direct heating and autoclaving for sterilization.

Use:
It is commonly used in laboratories for mixing, heating, cooling, and storing liquids, as well as for titrations and cell cultures.

Test Tubes 5ml

The characteristics of a test tube like the one pictured include the following:

Materials:
Clear glass (such as soda-lime glass or borosilicate).

Shape:
A narrow cylindrical body with a base that can be round (U-shaped), conical (V-shaped), or flat, and a top opening. The image shows a flat bottom.

Dimensions and Capacity:
Test tubes come in various sizes and volumes. The one pictured is graduated up to 5ml, with an accuracy indication of “±0.2”. The visible graduations are 1, 2, 3, 4, and 5ml.

Use:
Used in laboratories to hold, mix, and heat chemicals, or for specific analyses such as food quality control or blood tests. The object in the image, being graduated, is more specifically a flask, used to precisely measure liquid volumes.

Resistance:
Resistance to temperature changes and chemicals varies depending on the type of glass.

Erlenmeyer Flask 50ML

A borosilicate glass Erlenmeyer flask has several key characteristics:

Materials:
It is made of borosilicate 3.3 glass (such as Pyrex™ or Duran®), known for its high resistance to thermal shock and chemical corrosion.

Capacity:
The flask pictured has a capacity of 50 ml, with graduations indicating volumes (20,30,40,50ml).

Shape:
Its conical shape ensures good stability and facilitates mixing and heating liquids. The neck can be narrow or wide.

Graduations:
It has graduations (often white enamel) for approximate volume measurements.

Resistance:
Borosilicate glass provides excellent heat resistance, allowing direct heating and autoclaving for sterilization.

Use:
It is commonly used in laboratories for mixing, heating, cooling, and storing liquids, as well as for titrations and cell cultures.