Hanna Instruments HI931 - Page 176

6
0.1M SODIUM THIOSULFATE TITRANT CONCENTRATION
0.1M SODIUM THIOSULFATE TITRANT CONCENTRATION
METHOD ID: HI0003EN
METHOD PARAMETERS
Name: 0.1M Sodium Thiosulfate
Method Revision: 3.0
Analysis Type: Standard Titration
Analog Board: Analog 1
Stirrer Conguration:
Stirrer: Stirrer 1
Stirring Speed: 1400 RPM
Pump Conguration:
Titrant Pump: Pump 1
Reagent Addition 1: Disabled
Reagent Addition 2: Disabled
Dosing Type: Dynamic
Min Vol: 0.030 mL
Max Vol: 0.600 mL
delta E: 6.500 mV
End Point Mode: mV 1EQ point, 1st Der
Recognition Options:
Threshold: 50 mV/mL
Range: NO
Filtered Derivatives: NO
Pre-Titration Volume: 5.000 mL
Pre-Titration Stir Time: 0 sec
Measurement Mode: Signal Stability
delta E: 0.3 mV
delta t: 2 sec
Min wait: 2 sec
Max wait: 20 sec
Electrode Type: ORP
Blank Option: No Blank
Calculations: Stdz. Titrant by Weight
Dilution Option: Enabled
Final Dilution Volume: 100.000 mL
Aliquot Volume: 10.000 mL
Titrant Name: 0.1M Na2S2O3
Analyte Size: 0.35000 g
Analyte Entry: Manual
Maximum Titrant Volume: 15.000 mL
Potential Range: -2000.0 to 2000.0 mV
Volume/Flow Rate: 25 mL/50.0 mL/min
Signal Averaging: 1 Reading
Signicant Figures: XXXXX
CALCULATIONS
Calculations: Stdz. Titrant by Weight
Titrant units: M (mol/L)
Titrant volume dosed: V (L)
Standard weight: 0.350 g
Dilution Factor: 0.100
Final Dilution volume: 100.000 mL
Aliquot Volume: 10.000 mL
mw of standard: 214.00 g/mol
Titrant/Standard: 6.000 mol/mol
RESULTS
Titration Report
Method Name: 0.1M Sodium Thiosulfate
Time & Date: 17:10 Jun 22, 2018
Report ID: Ti_00073
Titration Results
Method Name: 0.1M Sodium Thiosulfate
Time & Date: 17:10 Jun 22, 2018
Analyte Size: 0.35020 g
End Point Volume: 9.635 mL
mV Equivalence Point: 233.0
Result: 0.10191 M (mol/L)
Initial & Final mV: 361.8 to 173.4
Titration Duration: 2:51 [mm:ss]
Titration went to Completion
Analyst Signature:_____________________