HFDL-400 microcomputer sulfur analyzerWorking Principle:

The test sample is burned in a purified air flow at a high temperature of 1050 ℃, and various forms of sulfur in coal are decomposed and carried by the air flow to the electrolytic cell to hydrate and form H2SO3. As it destroys the dynamic balance of the iodine iodine ion pair in the electrolytic cell, the instrument immediately outputs current to electrolyze the solution to generate iodine, restoring the original dynamic balance, which is the Coulombic titration in GB/T214-1996. The amount of current consumed to restore the original dynamic balance is related to the sulfur burned and decomposed in the test sample, which can be measured and calculated by a microprocessor.

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