Tungsten tetrabromide (WBr4) and tungsten hexabromide (WBr6) have some differences in thermal stability.
Tungsten tetrabromide is relatively stable, and it is not easy to decompose or react at room temperature. However, at higher temperatures, tungsten tetrabromide may decompose or react to release bromine gas. Its thermal decomposition temperature depends on the specific reaction conditions and environment, but is usually between 400-600 degrees Celsius.
Tungsten hexabromide has high thermal stability. It is relatively stable at room temperature and retains its structural integrity at higher temperatures. The thermal decomposition temperature of tungsten hexabromide is usually higher than that of tungsten tetrabromide, about 600-800 degrees Celsius.
It should be noted that thermal stability is also affected by other factors, such as the presence of oxygen and moisture, reaction conditions and environment, etc. In addition, the specific thermal decomposition temperature may also vary due to factors such as sample purity and crystal structure.
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