Plastic beakers serve a variety of purposes in scientific laboratories. Let’s explore their features, types, and applications:

1. Features of Beakers:

   • Shape: Beakers are cylindrical with a wide mouth and flat bottom.
   • Spout: They have a thin lip-like structure (spout) at the top for easy pouring.
   • Sizes: Available in various sizes to suit different requirements.
   • Heat Resistant: Made of glass, plastic, or steel, they can withstand heat.
   • Graduation Markers: Most beakers have clear, marked graduations.

2. Types of Beakers:

   • Tall Form Beaker (Berzelius Beaker): Used in titration experiments, thin and double the height of the diameter. Some may have handles for pouring.
   • Small Form Beaker (Griffin Beaker): About 40% of the diameter in height, ideal for heating on hot plates due to their wide, flat bottoms.
   • Flat Beaker (Crystallizer): Used for crystallization, lacks flat scales on the wall.
   • Phillips Beaker: Similar to Griffin beakers but with a sliding, graduated wall toward the mouth.

3. Based on Raw Material Used:

   • Glass Beakers: Made of borosilicate glass, heat-resistant up to 400°C, and chemically resistant.
   • Plastic Beakers: Made of various plastic types:
     • LDPE (Low-Density Polyethylene) and Polypropylene: Suitable for weak chemical reactions and low heat (up to 80°C).