Development of Karl Fischer Reagents
30.11.2012 • Views
Share Embed Flag

Development of Karl Fischer Reagents

Development of Karl Fischer Reagents

Development of Karl Fischer Reagents

SHOW MORE
SHOW LESS
ePAPER READ
DOWNLOAD ePAPER
mcckf.com

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

START NOW

Chapter III: Applications - 2<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 SU (or FM) at 40 � C 25-50ml<br />

Substance<br />

Malt syrup<br />

Candy<br />

Drops<br />

Milk caramel<br />

Cream caramel<br />

Chocolate<br />

Wafers<br />

Chocolate cream<br />

Chocolate emulsifier<br />

Chewing gum<br />

Corn snack<br />

Substance<br />

Potato chips<br />

Biscuits<br />

Corn snacks<br />

Substance<br />

Sample Quantity<br />

(g)<br />

0.0505<br />

0.1893<br />

0.2674<br />

0.2869<br />

0.1206<br />

0.3153<br />

0.5500<br />

0.0999<br />

0.2527<br />

0.2978<br />

0.2217<br />

Heating Temperature<br />

( � C)<br />

130<br />

130<br />

130<br />

Heating Temperature<br />

( � C)<br />

Measurement Value<br />

(mg)<br />

12.59<br />

5.78<br />

5.77<br />

23.42<br />

9.93<br />

3.18<br />

12.76<br />

12.13<br />

5.83<br />

5.63<br />

3.24<br />

Sample Quantity<br />

(g)<br />

0.1814<br />

0.3821<br />

0.2462<br />

Sample Quantity<br />

(g)<br />

Moisture Content<br />

(%)<br />

24.90<br />

3.05<br />

2.16<br />

8.16<br />

8.24<br />

1.01<br />

2.32<br />

12.10<br />

2.31<br />

1.89<br />

1.46<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 />

(3) Moisture vaporization - Coulometric titration<br />

<strong>Reagents</strong> used: Aquamicron AX (or AS) 150ml<br />

Aquamicron CXU 10ml<br />

Measurement Value<br />

(µg)<br />

3.73<br />

12.72<br />

3.44<br />

Measurement Value<br />

(µg)<br />

Moisture Content<br />

(%)<br />

2.06<br />

3.33<br />

1.40<br />

Moisture Content<br />

(%)<br />

Small rice crackers 130 0.0377 2776 7.36<br />

175

logo

products

Resources

Company

Terms of service
Privacy policy
Cookie policy
Cookie settings
Imprint
Change language
Made with love in Switzerland
© 2024 Yumpu.com all rights reserved

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!