What is the difference between quartz crucible

Main types of 1. quartz crucible

1. ordinary quartz crucible

• features: Ordinary quartz crucible is mainly used for general heating and solid-phase reaction operations in the laboratory. Its thickness is usually between 5-10mm and its shape is cylindrical or square.
• Advantages: Low price, easy to obtain, suitable for small experiments and preliminary research.
• Disadvantages: Due to the thin thickness, long-term use will easily cause the bottom of the crucible to stick, which will affect the experimental effect.

1. Laboratory Grade Quartz Crucible

• features: Laboratory-grade quartz crucibles usually have a higher thickness (10-13mm), and the inside is specially treated to improve thermal stability.
• Advantages strong thermal stability, suitable for continuous use in high temperature environments; suitable for experiments that require precise melting operations.
• Disadvantages: The price is higher and not suitable for large-scale industrial applications.

1. Industrial Grade Quartz Crucible

• features: Industrial-grade quartz crucibles usually have higher impact strength and more uniform thickness distribution, suitable for industrial-scale high-temperature melting and solid-phase reaction operations.
• Advantages: High impact strength, suitable for frequent use; suitable for melting operation in mass production.
• Disadvantages: High cost, not suitable for small laboratories.

Analysis of Material Characteristics of 2. Quartz Crucible

the material properties of quartz crucible are mainly manifested in high temperature stability, chemical inertness and thermal conductivity.

1. High temperature stability

• the high temperature stability of different quartz crucibles is very different. Laboratory-grade and industrial-grade quartz crucibles usually have better high-temperature stability and can withstand higher temperatures.
• Due to the thin thickness of ordinary quartz crucible, it is easy to cause adhesion or melting at high temperature, which affects the experimental effect.

1. chemical inertness

• the chemical inertness of quartz crucible is closely related to its SiO2 purity. The higher the purity, the more chemically inert the crucible and the better the contact with the test material.
• Laboratory-and industrial-grade quartz crucibles are usually made of SiO2 material with higher purity and better chemical inertness.

1. thermal conductivity

• the thermal conductivity of quartz crucible is related to its internal pores and crystal structure. The presence of pores helps to improve the thermal conductivity and stability of the crucible.
• Laboratory-and industrial-grade quartz crucibles offer superior thermal conductivity for frequent use and high-temperature operation.

Application Scenario Analysis of 3. Quartz Crucible

the use of quartz crucibles is mainly divided into two parts: laboratory applications and industrial applications.

1. Laboratory Applications

• laboratory applications often require high accuracy and stability. Laboratory grade quartz crucibles are commonly used heating and melting tools in laboratories.
• In laboratory applications, the thermal stability, chemical inertness and impact strength of quartz crucibles are key indicators.

1. Industrial Applications

• industrial applications typically involve high temperature melting and continuous operation. Industrial grade quartz crucibles are commonly used melting tools in industrial laboratories.
• In industrial applications, the high temperature stability, impact strength and uniform thickness distribution of stone Illuminate crucibles are key indicators.

Matters needing attention in maintenance and use of 4. quartz crucible

1. cleaning and storage

• quartz crucibles usually need to be cleaned regularly to prevent adhesion and dirt from affecting the use effect. After cleaning, it should be stored in a dry and ventilated place.
• Avoid high temperature and humidity during storage to prevent glass performance degradation.

1. High temperature use

• quartz crucibles require special care when used at high temperatures to prevent sticking and melting.
• It should be washed with warm water or ethanol before use to reduce the possibility of adhesion.

1. Experimental operation

• during the experimental operation, the crucible should be avoided at high temperature to avoid stress and rupture inside the glass.
• Use should avoid placing solid substances inside the crucible, so as not to affect the experimental results due to adhesion.

5. Summary

quartz crucibles are commonly used heating tools in laboratory and industrial applications, with different types, material properties and application scenarios. Ordinary quartz crucibles are suitable for small experiments, while laboratory and industrial quartz crucibles are more suitable for high temperature and large-scale applications. Choosing a suitable quartz crucible requires comprehensive consideration of factors such as high temperature stability, chemical inertness, thermal conductivity, thickness uniformity, and usage scenarios. Through the correct selection and use, we can give full play to the performance of quartz crucible, and provide reliable technical guarantee for experimental and industrial applications.