100mm Laboratory Watch Glass Dishes Lab Surf​ace Disk 10 Piece/Lot

Description

Product Overview

These 100mm watch glass dishes are precision-engineered for laboratory use, crafted from G3.3 borosilicate glass known for its high thermal resistance and chemical inertness. Each dish is designed to withstand temperatures up to 820℃, with an annealing point of 560℃ and a linear coefficient of expansion of 32×10-7/℃, ensuring dimensional stability during heating and cooling cycles. Ideal for mixing, heating, and surface reactions, these dishes are compatible with most lab equipment and are suitable for both educational and professional settings. The 10-piece lot provides ample quantity for routine lab use or classroom demonstrations.

Usage

These watch glasses are commonly used in chemistry labs for mixing solutions, evaporating liquids, and conducting surface reactions. They are also suitable for heating samples on hot plates or in ovens, and for holding small quantities of chemicals during titrations or distillations. Ideal for students, researchers, and professionals in educational institutions, pharmaceutical labs, and industrial R&D departments. Their transparent design allows for easy observation of reactions, while the smooth, non-porous surface prevents contamination.

Why Choose Us

These watch glasses are manufactured by Deschem, a trusted supplier of lab glassware known for quality control and consistent performance. The G3.3 borosilicate glass ensures superior thermal shock resistance and chemical resistance, making them suitable for harsh lab environments. Each dish is precisely sized for standard lab equipment and is designed to minimize breakage during handling. The 10-piece lot offers excellent value for labs requiring multiple dishes for routine use. Additionally, Deschem provides reliable customer support and product documentation to assist with installation and troubleshooting.

Key Features

• High thermal resistance up to 820℃, ideal for heating and mixing applications
• Chemically inert G3.3 borosilicate glass ensures long-term durability and purity
• Low thermal expansion coefficient (32×10-7/℃) for consistent performance under temperature changes
• Transparent, smooth surface for easy observation and contamination-free handling
• 10-piece lot provides cost-effective bulk quantity for labs and educational institutions

FAQ

What is the material used in these watch glasses?

These watch glasses are made from G3.3 borosilicate glass, known for its high thermal resistance, chemical inertness, and low thermal expansion coefficient, making them ideal for laboratory use.

What is the maximum temperature these dishes can withstand?

These dishes can withstand temperatures up to 820℃, with an annealing point of 560℃, making them suitable for heating and mixing applications in chemical labs.

Are these dishes suitable for educational labs?

Yes, these dishes are ideal for educational labs due to their durability, transparency, and compatibility with standard lab equipment. The 10-piece lot is perfect for classroom demonstrations and student projects.

Can these dishes be used on hot plates or ovens?

Yes, these dishes are designed to withstand high temperatures and are compatible with hot plates and ovens. Their thermal resistance ensures safe and consistent performance during heating.

What is the linear coefficient of expansion for these dishes?

The linear coefficient of expansion is 32×10-7/℃, which ensures dimensional stability during thermal cycling and minimizes the risk of breakage during heating or cooling.