Watch Glass 40 mm, Transparent Borosilicate Glass, Chemical and Heat Resistant, 10 pieces

The 40 mm watch glass is made from borosilicate glass 3.3, known for its high chemical resistance and low thermal expansion. This material allows use at temperatures up to 500°C, providing stability and durability in laboratory experiments.

Technical features:
• Diameter: 40 mm, suitable for standard laboratory applications
• Material: borosilicate glass 3.3, with high chemical resistance
• Transparent surface for clear observation of liquids and crystals
• Low thermal expansion, tolerates high temperatures
• Smooth and flat surface without impurities

Laboratory applications:
• Evaporation of liquids and observation of precipitates and crystals
• Precise weighing and measuring of solid or liquid substances
• Can be used as a cover for laboratory beakers or Erlenmeyer flasks
• Suitable for standard chemical experiments
• Can be placed on contrasting surfaces for better visibility of contents

Usage instructions:
The 40 mm watch glass is placed directly on substances undergoing evaporation or on laboratory containers, allowing detailed observation of precipitate and crystal formation. For optimal results, it can be placed on dark surfaces or coated with a contrasting layer.

Quantity: 10 pieces
This watch glass is an essential laboratory accessory, offering precision, durability, and reliability for chemical experiments and accurate measurements.