Final answer:
Tin antimony solder is primarily used in electronics to create durable electrical connections. Antimony improves the hardness and strength of solder, essential for reliable circuitry.
Step-by-step explanation:
A major use of tin antimony solder is in the production of electronic components and semiconductor devices. Antimony is added to lead to create a solder that has increased hardness and strength, which is essential for establishing reliable electrical connections in electronic circuits. Furthermore, antimony is utilized in the fabrication of other industrial products like batteries, bullets, and various alloys due to its properties.