Processing kodak motion picture films, module 3 analytical procedures
Processing kodak motion picture films, module 3 analytical procedures Processing kodak motion picture films, module 3 analytical procedures
CALCULATIONS For Potentiometric Titration A. Hypo Index (HI) or Total Reductants: HI (1), mL = Where: B. Thiosulfate (S 2O 3 = ): Where: C. Sodium Sulfite (Na 2 SO 3 ): Where: (mL Blank A – mL Sample A) (N Na 2 S 2 O 3 ) 0.1000 N Na 2 S 2 O 3 HI (1), mL = mL of 0.1000 N I2 consumed by 1.0 mL sample mL Blank A = millilitres of titrant at the end point of the blank titration of potentiometric Procedure A. mL Sample A = millilitres of titrant at the end point of the sample titration of potentiometric Procedure A. N Na2S2O3 = normality of the titrant (meq/mL) 0.1000 = nominal value for the normality of the titrant, in meq/mL g/L S 2O 3 = = (mL Blank B – mL Sample B)(N Na 2 S 2 O 3 )(112.13)(1000) sample size (1000) mL Blank B = millilitres of titrant at the end point of the blank titration of potentiometric Procedure B mL Sample B = millilitres of titrant at the end point of the sample titration of potentiometric Procedure B. N Na2S2O3 = normality of the titrant (meq/mL) 112.13 = equivalent weight of thiosulfate expressed in mg/meq 1000 = conversion factor of milligrams to grams 1000 = conversion factor of millilitres to litres sample size = sample size used in potentiometric Procedure B (2.0 mL) mL Blank A – mL Sample A = D mL A mL Blank B – mL Sample B = D mL B g/L Na 2 SO 3 = [(D mL A)(2.0) – (D mL B)](N Na 2 S 2 O 3 )(63.02)(1000) sample size (1000) N Na2S2O3 = normality of the titrant 2.0 = conversion of hypo index to 2.0 mL sample size 63.02 = equivalent weight of sodium sulfite in mg/ meq 1000 = conversion factor of milligrams to grams sample size = sample size used in potentiometric Procedure B (2.0 mL) 1000 = conversion factor of millilitres to litres 8 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03
Example Potentiometric Calculations: Titration mL 0.1 N Na 2S 2O 3 Titrant Blank A = 40.50 Sample A = 21.85 Blank B = 40.55 Sample B = 19.80 Hypo Index (HI) or Total Reductants: HI (1), mL = Thiosulfate (S 2 O 3 = ): Sodium Sulfite (Na 2 SO 3 ): (40.50 – 21.85)(0.0989) 0.1000 = 18.4 mL 0.1000 N I 2 (40.55 – 19.80)(0.0989)(112.13)(1000) = g/L S2O3 = (2.0)(1000) g/L Na 2 SO 3 = = 57.5 g/L [(40.50 – 21.85)(2.0) – (40.55 – 19.80)](0.0989)(63.02)(1000) = 51.4 g/L (2.0)(1000) Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03 9
- Page 15 and 16: APPARATUS All volumetric glassware
- Page 17 and 18: Potentiometric Determination of Bro
- Page 19 and 20: APPARATUS All pipettes and volumetr
- Page 21 and 22: Potentiometric Determination of Amm
- Page 23 and 24: PROCEDURE A. Sample Treatment 1. Pi
- Page 25 and 26: Titrimetric Determination of Buffer
- Page 27 and 28: Buffering Capacity Determination of
- Page 29 and 30: Titrimetric Determination of EASTMA
- Page 31 and 32: VISUAL TITRATION STATISTICS Repeata
- Page 33 and 34: Back-Extraction of the Developing A
- Page 35 and 36: Potentiometric Determination of Fer
- Page 37 and 38: Recovery Recovery is used instead o
- Page 39 and 40: CALCULATIONS For Na3Fe(CN) 6 g/L Na
- Page 41 and 42: Cerimetric Determination of Sodium
- Page 43 and 44: Potentiometric Determination of Fer
- Page 45 and 46: Bias Bias is a statistically signif
- Page 47 and 48: Spectrophotometric Determination of
- Page 49 and 50: APPARATUS Pipet (40-mL) Graduated C
- Page 51 and 52: B. Analysis of Standards 1. Run eac
- Page 53 and 54: Determination of Ferrous Iron in EA
- Page 55 and 56: PROCEDURE Blank 1. Set a double-bea
- Page 57 and 58: APPENDIX B This appendix contains t
- Page 59 and 60: Titrimetric Determination of Hypo I
- Page 61 and 62: Recovery Recovery is used instead o
- Page 63 and 64: Recovery Recovery is used instead o
- Page 65: B. Thiosulfate Determination 1. Sam
- Page 69 and 70: Spectrophotometric Determination of
- Page 71 and 72: APPARATUS Double Beam Spectrophotom
- Page 73 and 74: APPENDIX II This appendix contains
- Page 75 and 76: Spectrophotometric Determination of
- Page 77 and 78: Calculations a. Range: 0.5-2.5 g/L
- Page 79 and 80: APPENDIX 2 Typical Absorptivity mL
- Page 81 and 82: Spectrophotometric Determination of
- Page 83 and 84: APPARATUS All volumetric glassware
- Page 85 and 86: Procedure Preparation of 10 g/L Iro
- Page 87 and 88: Determination of Total Iron in East
- Page 89 and 90: Determination of Total Iron in East
- Page 91 and 92: Determination of Total Iron in EAST
- Page 93 and 94: 12. Press ‘ZERO’. The instrumen
- Page 95 and 96: Spectrophotometric Determination of
- Page 97 and 98: PROCEDURE A. Spectrophotometer Zero
- Page 99 and 100: Absorptivity of Iron-Thiocyanate Co
- Page 101 and 102: Potentiometric Determination of Unc
- Page 103 and 104: Potentiometric Determination of Kod
- Page 105 and 106: Titrimetric Determination of Persul
- Page 107 and 108: APPARATUS Conical Flask with stoppe
- Page 109 and 110: Potentiometric Determination of Sil
- Page 111 and 112: APPARATUS METROHM 536 Titrator or e
- Page 113 and 114: Potentiometric Determination of Sod
- Page 115 and 116: PROCEDURE Treatment of the Sample 1
Example Potentiometric Calculations:<br />
Titration mL 0.1 N Na 2S 2O 3 Titrant<br />
Blank A = 40.50<br />
Sample A = 21.85<br />
Blank B = 40.55<br />
Sample B = 19.80<br />
Hypo Index (HI) or Total Reductants:<br />
HI (1), mL =<br />
Thiosulfate (S 2 O 3 = ):<br />
Sodium Sulfite (Na 2 SO 3 ):<br />
(40.50 – 21.85)(0.0989)<br />
0.1000<br />
= 18.4 mL 0.1000 N I 2<br />
(40.55 – 19.80)(0.0989)(112.13)(1000)<br />
=<br />
g/L S2O3 =<br />
(2.0)(1000)<br />
g/L Na 2 SO 3 =<br />
= 57.5 g/L<br />
[(40.50 – 21.85)(2.0) – (40.55 – 19.80)](0.0989)(63.02)(1000)<br />
= 51.4 g/L<br />
(2.0)(1000)<br />
<strong>Processing</strong> KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03 9
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