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Weak Conductor
When lead bromide crystals are heated to 367 degrees Celsius, they become a week electrical conductor. That means that electricity will travel through the crystals. The level of conductivity depends on the impurities and imperfections in the crystal. A higher level of each can cause a decrease in overall conductivity.
Optical Uses
When lead bromide is ultra pure, it can have significant optical enhancement of acousto-optical testing equipment. Lead bromide has a high diffraction efficiency and is useful in spectral analysis systems and optical signal processing. The purified sample is sealed in a quartz ampule and becomes a tool for assessing diffraction patterns.
Atomic Weight of Lead
Scientists used lead bromide to revise the atomic weight of lead. Lead chloride was originally used to calculate the atomic weight of lead, but it is difficult to diffuse all matter when separating the compound. Lead bromide was used because of its ease of purification even though it is not as soluble as lead chloride.