Right. Commercial "high purity" bromine is 99.5% purity, and easily available at reasonable cost. Semiconductor processes want 99.9999%. Merck offers that. [1]

Right. Commercial "high purity" bromine is 99.5% purity, and easily available at reasonable cost. Semiconductor processes want 99.9999%. Merck offers that. [1] €2500/liter from a lab supply house. Very few companies offer the post-purification. But access to the Dead Sea is a non-issue. [1] https://www.merckmillipore.com/UY/en/product/mm/101947 https://www.merckmillipore.com/UY/en/product/mm/101947 [2] https://www.lms-lab.de/en/bromine-99-9999-suprapur-250-ml/1266050 https://www.lms-lab.de/en/bromine-99-9999-suprapur-250-ml/12...