Development of Karl Fischer Reagents
Development of Karl Fischer Reagents
Development of Karl Fischer Reagents
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III-1. Industrial Products<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 OL II, KTX (or CM, CP) 25-50ml<br />
160<br />
Substance<br />
Porcelain adhesives<br />
Aluminum adhesives<br />
Woodworking bonds<br />
Construction putties<br />
Rubber-metal adhesives<br />
Adhesives<br />
Dehydrated<br />
solvents<br />
Oil-type<br />
"<br />
"<br />
"<br />
Ketone-type<br />
"<br />
Sample Quantity<br />
(g)<br />
1.5001<br />
0.5508<br />
0.0785<br />
0.2324<br />
0.6883<br />
4.4427<br />
Measurement Value<br />
(mg)<br />
1.65<br />
3.75<br />
46.70<br />
1.78<br />
3.14<br />
0.79<br />
Moisture Content<br />
(%)<br />
00.110<br />
00.681<br />
59.500<br />
00.766<br />
00.456<br />
178ppm<br />
(2) Moisture vaporization - Volumetric titration<br />
<strong>Reagents</strong> used: <strong>Karl</strong> <strong>Fischer</strong> Reagent SS-Z (or SS)<br />
Dehydrated Solvent GEX (or MS) + PG (3:1) 50-100ml<br />
Substance<br />
Pastes<br />
Woodworking bonds<br />
Construction putties<br />
Heating Temperature<br />
( � C)<br />
150<br />
200<br />
250<br />
Sample Quantity<br />
(g)<br />
0.4960<br />
0.0546<br />
0.8479<br />
(3) Coulometric titration<br />
<strong>Reagents</strong> used: Aquamicron AX (or AS), AKX 100ml<br />
Aquamicron CXU 5ml<br />
Substance Electrolyte<br />
Epoxy resins<br />
Isocyanate hardeners<br />
Bonds<br />
Cyanoacrylates<br />
Adhesives<br />
General-use<br />
"<br />
"<br />
ketone-type<br />
"<br />
Sample Quantity<br />
(g)<br />
0.5112<br />
1.5368<br />
0.9403<br />
1.9786<br />
2.3736<br />
(4) Moisture vaporization - Coulometric titration<br />
<strong>Reagents</strong> used: Aquamicron AX (or AS) 150ml<br />
Aquamicron CXU 10ml<br />
Measurement Value<br />
(mg)<br />
01.59<br />
32.24<br />
02.33<br />
Measurement Value<br />
(µg)<br />
1507<br />
098<br />
524<br />
430<br />
430<br />
Moisture Content<br />
(%)<br />
00.321<br />
59.100<br />
00.275<br />
Moisture Content<br />
(ppm)<br />
295<br />
064<br />
557<br />
217<br />
181
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