Calcium tetrafluoroborate is an inorganic salt with the chemical formula Ca(BF4)2 that usually exists as colorless to white crystals or powders.

Calcium tetrafluoroborate has good solubility in water, and its aqueous solution is neutral. It is more stable than other commonly used lewis acids and has a lower environmental impact. As a result, it is an ideal chemical reagent for many industrial applications.

1. Catalyst: In organic chemistry, calcium tetrafluoroborate is often used as a Lewis acid catalyst to promote various reactions.

2. Molten salt: Due to its high boiling point and good thermal stability, calcium tetrafluoroborate can be used as a component of molten salt mixtures for electrolytic refining and high-temperature heat treatment processes of metals.

3. Ceramic and glass additives: In ceramic and glass manufacturing, calcium tetrafluoroborate can be used as a flux to reduce the sintering temperature and improve the fluidity and transparency of the product.

4. Fire retardants and flame retardants: Calcium tetrafluoroborate can be added to plastics, rubber, and coatings as a flame retardant to improve the fire performance of materials.

5. Metal surface treatment: In metal processing, calcium tetrafluoroborate can be used as a pickling agent to remove oxides and dirt on the metal surface, and improve the cleanliness and activity of the metal surface.

6. Wood preservative: Calcium tetrafluoroborate can be used as a wood preservative and insecticide to prevent wood rot and insect infestation.

7. Lubricants: In some cases, calcium tetrafluoroborate is also used as an additive to lubricating oils to improve lubricating properties.

8. Electroplating solution: In the electroplating process, calcium tetrafluoroborate can be used as a component of electroplating solution to improve the quality and efficiency of electroplating.

9. Fertilizer: Calcium tetrafluoroborate can be used as a form of boron fertilizer, providing boron for plant growth.

10. Cleaners and Corrosion Inhibitors: Among cleaners and corrosion inhibitor products, calcium tetrafluoroborate can help prevent metal corrosion and maintain the longevity of the equipment.