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The COSA CA-100 Karl Fischer Moisture Meter allows the simultaneous measurement of moisture and Bromine Index/Bromine Number. This method is primarily used to measure the unsaturation level of hydrocarbons in fats, oils, and in petroleum products.

Bromine Index and Bromine Number are important parameters for monitoring the purity of petroleum distillates. While the methods recommended by ASTM are complicated, Mitsubishi has developed an innovative and easy Bromine Index/Bromine Number measurement method. Bromine Number is expressed as the grams of Bromine (Br) available to react with 100 grams of the product. Bromine Index is expressed as the milligrams of Bromine available to react with 100 grams of the product under the specified condition.

Comparison of data for cyclohexene, some unsaturated hydrocarbons, aromatic compounds, and higher alcohols against data generated by ASTM D1159-98, D2710-99 and D5776-99 shows the COSA's Bromine Index/Bromine Number method provides equivalent results, yet is easier to use and does not require a dedicated instrument.

Analysis of Bromine Index of Aromatic Hydrocarbons Coulometrically via ASTM D1492 is also possible with the CA-100.

The dual function of the CA-100 Karl Fischer Moisture Meter provides the optimal solution to the analytical needs of any laboratory.