Development of Karl Fischer Reagents
Development of Karl Fischer Reagents
Development of Karl Fischer Reagents
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II-2. Inorganic Compounds<br />
[Examples <strong>of</strong> Measurement]<br />
(1) Volumetric titration<br />
<strong>Reagents</strong> used: <strong>Karl</strong> <strong>Fischer</strong> Reagent SS-Z (or SS)<br />
Dehydrated Solvent GEX (or MS) 25-50ml<br />
(2) Coulometric titration<br />
<strong>Reagents</strong> used: Aquamicron AX (or AS) 100ml<br />
Aquamicron CXU 5ml<br />
(3) Moisture vaporization - Coulometric titration<br />
<strong>Reagents</strong> used: Aquamicron AX (or AS) 150ml<br />
Aquamicron CXU 10ml<br />
122<br />
Substance<br />
Dehydrated<br />
solvents<br />
Sample<br />
quantity (g)<br />
Measurement<br />
value (mg)<br />
Moisture<br />
content (%)<br />
Aluminum chloride 6-hydrate General-use 0.0331 15.17 45.8<br />
Potassium chloride " 0.5178 1.37 0.26<br />
Magnesium chloride 6-hydrate " 0.0554 30.04 54.2<br />
Magnesium chloride anhydride " 0.6703 3.01 0.45<br />
Lithium chloride " 0.1004 5.11 5.09<br />
Manganese chloride " 0.0759 27.94 36.8<br />
Strontium chloride " 0.0412 16.75 40.6<br />
Vanadium chloride " 0.0766 18.10 23.6<br />
Barium chloride " 0.5933 86.92 14.7<br />
Lithium chlorate " 0.1053 13.77 13.1<br />
Dried lithium chlorate " 0.0783 2.13 2.72<br />
Sodium iodide " 3.3707 1.63 0.048<br />
Sample<br />
Aluminum chloride 6-hydrate<br />
Manganese chloride<br />
Lithium chloride<br />
Sulfur hexafluoride<br />
Sample quantity<br />
(g)<br />
0.0166<br />
0.1607<br />
0.0932<br />
10.29<br />
Measurement value<br />
(µg)<br />
7490<br />
0700<br />
4780<br />
0230<br />
Moisture content<br />
(%)<br />
45.100<br />
00.436<br />
05.130<br />
22ppm
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