Hanna-instruments HI 904 Manual de usuario Pagina 152
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4
TITRATION THEORY
4.3.2.2 Dispensing Errors............................................................................................... 22
4.3.3 Chemical Reaction Errors ................................................................................22
4.3.4 End Point Determination Errors .......................................................................22
5 CALCULATIONS ..........................................................................................23
5.1 Equations Used in Karl Fischer Titrations .................................................. 23
5.1.1 Calculation of water content as % mass from samples measured by mass ..........23
5.1.2 Calculation of water content as % mass from samples measured by volume .......23
5.1.3 Calculation of water content as % volume from samples measured by volume....23
5.1.4 Calculation of water content as % mass subtracting Background Drift Rate .........23
5.1.5 Calculation of water content in External Dissolution Samples .............................24
5.1.6 Calculation of water content in External Extraction Samples ...............................24
5.1.7 Calculation of water content in Gaseous Samples ..............................................24
5.1.8 Calculation of Titer (water equivalent of the titrant) using sodium tartrate dihydrate
containing 15.66% water by mass ............................................................................24
5.1.9 Calculation of Titer (water equivalent of the titrant) using water standards .........25
5.2 Equations Used in Titrations ...................................................................... 25
5.2.1 Sample Calculation .........................................................................................25
5.2.2 Standardize Titrant .........................................................................................25
5.2.3 Blank Titration ...............................................................................................26
5.2.4 Multiple End Point Titration .............................................................................26
5.2.5 Back Titration ................................................................................................27
6 GLOSSARY ..................................................................................................28
- QUICK START GUIDE 1
- KARL FISCHER 1
- COULOMETRIC TITRATOR 1
- INSTRUCTION MANUAL 17
- Dear customer 18
- Hanna Instruments 18
- TABLE OF CONTENTS 19
- INTRODUCTION 21
- Chapter 2. Contents 23
- 2.1 Unpacking 25
- 2.2 Safety Measures 26
- 2.3 Installation 27
- 2.3.2 Titrator Rear View 28
- 2.3.3 Titrator Left-side View 28
- 2.3.4 Titrator Assembly 29
- 2.3.4.3 Titration Vessel 31
- Caution: 35
- USER INTERFACE 37
- 3.2.1 Keypad 40
- 3.2.2 Display 41
- Idle Screen 42
- Process Screen 43
- GENERAL OPTIONS 47
- Chapter 4. Contents 47
- 4 GENERAL OPTIONS 49
- General Options 49
- “External” stirrer option 51
- Balance Configuration 56
- Chapter 5. Contents 59
- 5 METHODS 61
- 5.2 Standard Methods 62
- 5.3 User Methods 63
- 5.4 View / Modify Method 64
- 5.5 Method Options 65
- 5.5.2 Method Revision 66
- 5.5.3 Method Type 66
- 5.5.4 Pre-Analysis Stir Time 67
- 5.5.5 Stirring Speed 67
- 5.5.6 Stirbar Type 68
- 5.5.7 Drift Entry 68
- 5.5.8 Reagent 69
- 5.5.9 Sample Parameters 70
- Normal Determination 71
- 4.11, Setup Balance Interface 72
- Sample Type: Volume 72
- External Extraction 73
- External Dissolution 73
- 5.5.10 Control Parameters 74
- Standby Duration 75
- Fixed (400 mA): 77
- 1 Reading 77
- 5.5.11 Termination Parameters 78
- 5.5.11.4, End Point 79
- Stability Time) 79
- Absolute Drift 79
- Relative Drift 79
- 5.6 Printing 80
- 5.7 Bromine Index 81
- TITRATION 83
- AUXILIARY FUNCTIONS 100
- MAINTENANCE, PERIPHERALS 103
- METHODS OPTIMIZATION 113
- APPENDIX 3 125
- MAN HI904 126
- 09/13 126
- APPENDIX 1 127
- APPENDIX 2 131
- GENERAL APPLICATIONS BROCHURE 141
- Method ID: HI9001EN 143
- Method ID: HI9301EN 145
- Method ID: HI9901EN 147
- TITRATION THEORY 149
- Revision 1.0 149
- 2.1.1 Amperometric Titrations 155
- 2.2.1 Karl Fischer Titrations 157
- ) = 9.336 · 10 158
- 2.2.2 Acid-Base Titrations 161
- 2.2.8 Redox Titrations 164
- 2.3.1 Back Titrations 165
- 4.3.1 Sampling Errors 169
- By Volume 174
- 5.2.3 Blank Titration 174
- 5.2.5 Back Titration 175
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