1. The relatively low melting point can effectively reduce the melting point of the reaction system, converting the solid-phase reaction into a liquid-solid two-phase reaction, thereby facilitating the dissolution of reactants and the advancement of the reaction.
2. Excellent dissolution capability enables it to dissolve the refractory components in the reactants, enhancing the reaction rate and the purity of the product.
3. Exhibiting chemical inertness at high temperatures, it does not undergo adverse reactions with the reactants to avoid the introduction of impurities.
4. Possessing low volatility to minimize losses at high temperatures and pollution to the experimental environment.
5. The particles are uniform, pollution-free, and of high purity.

Working Environment Conditions:

1. Personal Protection: When manipulating fluxes, appropriate personal protective equipment such as laboratory safety glasses, protective gloves, and protective clothing should be worn.
2. Inhalation Avoidance: During the handling of fluxes, inhalation of their dust or fumes should be avoided. Work in a well-ventilated setting and utilize local exhaust equipment when necessary.
3. Skin Contact: In case flux accidentally comes into contact with the skin, immediate rinsing with copious amounts of water is necessary and medical assistance should be sought.
4. Eye Contact: If flux enters the eyes, immediate rinsing of the eyes with copious amounts of water for at least 15 minutes is required, and medical attention should be sought promptly.
5. Storage Conditions: Fluxes should be kept in a dry, cool, and well-ventilated location, distant from heat and fire sources.
6. Labels and Documentation: Ensure that all flux containers are distinctly labeled, indicating the contents, hazard level, and safety instructions for usage.
7. Usage Quantity: The use of fluxes should be strictly in accordance with experimental requirements and excessive usage should be avoided.
8. Waste Disposal: Waste fluxes after utilization should be dealt with in accordance with laboratory waste disposal regulations and must not be disposed of randomly.
9. Equipment Inspection: Prior to the use of fluxes, it is necessary to inspect whether all equipment intended for use with fluxes is in good condition.
10. Operating Procedures: Adhere to the laboratory's operating procedures and safety guidelines to ensure the safety of experiments.
11. Training and Education: Ensure that all personnel using fluxes have received appropriate training and education, and have an understanding of the potential risks and correct operation methods.
12. Emergency Response: Be familiar with the laboratory's emergency response measures, including the handling of fires, leaks, and personnel injuries.
13. Mixing Avoidance: Different fluxes should not be mixed unless there is explicit experimental guidance and safety data support.
14. Stability Check: Regular checks on the stability of fluxes should be conducted and the use of expired or deteriorated products should be avoided.