The dangers of KBr include irritation to the lungs and potential effects on the nervous system. Repeated exposure to KBr can cause bronchitis, with symptoms such as cough, phlegm, and shortness of breath. It can also affect the nervous system, leading to headaches, irritability, impaired thinking, and personality changes. It is important to handle KBr carefully and ensure that it is kept dry, as it is hygroscopic and can absorb water from the air, which may affect its performance in FTIR measurements. When making KBr pellets, it is recommended to heat the anvils and die set beforehand to ensure dryness. Using dry KBr powder and ensuring that all components are at the same temperature is also important to avoid producing cloudy or wet pellets. If it is difficult to keep the KBr powder dry, grinding your own powder from random cuttings of KBr can be an alternative. Additionally, it is essential to thoroughly blend the sample with the KBr powder to produce accurate spectra. The quality of the KBr or halide salt powder used should always be of spectroscopic grade purity for optimal results.
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