CS analyzer is an instrument to test content of C and S.Tungsten granule is used an adding element to accelerate the reaction speed. In the testing process, solution is an indispensable test agent. Following will introduce the preparation method of the solution.
Preparation of sulfur testing solution
Reagents: Hydrogen peroxide (30%), sulfuric acid (1 +85), sodium hydroxide (4%), methyl red / bromocresol green mixed indicator (called methyl red, bromocresol 0.4g respectively 250ml ethanol dissolved in the combined storage.)
Preparation of sulfur absorbent solution
After cooling with 1 liter of distilled water, add 20ml of hydrogen peroxide (30%), 20ml of mixed indicator, 2 drops of sulfuric acid (1 +85), and then dilute to 2 liters with boiling distilled water. The solution should be red.
Preparation of sulfur calibration solution
With 6ml of sodium hydroxide (4%), diluted with boiling distilled water to 2 liters, shake aside. (About 0.003 equivalents of sodium hydroxide)
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