Processing kodak motion picture films, module 3 analytical procedures

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Bleach/Bleach-Fix Analysis Order Components Fixers Ferri-Type Bleaches Bleaches Bleach-Fix Do First Ferrous 1 Ferrous Iron (total) Hypo Index EDTA (free) Hypo pH 2 Sulfite Density Iron (total) Metals EDTA (free) pH Density Do Last Metals Analysis Order Components * Do First Hypo Index Hypo Sulfite pH Density Metals pH Do Last Halides * All components may not be found in all Developers. Analysis Order Components * Do First Ferrocyanide Ferricyanide pH Density Do Last Halides * All components may not be found in all Developers. 1 2 1 2 1 2 2 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03
Procedure for Electroplating a Silver-Silver Iodide Electrode 900 INTRODUCTION Current development work for the determination of potassium iodide in developers showed a problem when the silver electrodes were cleaned to brightness. Subsequent titrations after cleaning yielded low answers due to aerial oxidation of the electrode when used for a silver nitrate titration of potassium iodide. The problem is more pronounced at low levels of iodide (0.25-2.00 mg/L KI). The electroplating procedure should be used whenever an electrode is first used for a silver nitrate titration of iodide, regardless of the iodide level. The electrode should not be recleaned and replated between titrations but simply rinsed with distilled water and wiped dry. It can be stored dry or in distilled or deionized water APPARATUS Silver Bar or Silver Billet Electrode Dry Cell, 3-6 volts (e.g. Burgess No. 5156, 22 1 ⁄ 2 volt) REAGENTS For instructions on the preparation of the required analytical reagents see Module 4, Reagent Preparation Procedures. 50 mg/L Potassium Iodide Aluminum Wire, 20 gauge, Reagent Grade. PROCEDURE 1. Thoroughly clean a silver electrode with an abrasive cloth or household cleanser. Rinse well with distilled water and wipe dry. Note: If powdered cleanser has been used, make sure any adhering cleanser is removed from the electrode. If it is allowed to remain, it will prevent even plating. 2. Prepare a 50 mg/L potassium iodide solution by dissolving 50 mg of reagent grade potassium iodide in distilled water and diluting to one litre. 3. Add about 300 mL of the 50 mg/L potassium iodide solution to a 400-mL beaker. Enough solution should be added to completely cover the silver metal section of the electrode, while it is being held about one inch from the bottom of the beaker. Do not immerse the electrode yet. 4. Connect a 6-inch piece of reagent grade aluminum wire to the –3 volt terminal of a dry cell. Immerse about 2 inches of the wire into the solution in the 400-mL beaker. 5. Connect the electrode lead to the positive terminal of the dry cell. 6. While stirring gently, immerse the electrode in the potassium iodide solution for approximately three minutes. After three minutes, remove the electrode from the solution and rub dry with a tissue. 7. Repeat step 6 six times. Note: There should now be a smooth even coating of silver iodide on the electrode. If bare spots are apparent, the electrode should be recleaned and replated according to this procedure. 8. When satisfactorily plated, the electrode needs only to be rinsed well with distilled water and wiped dry between titrations. It can be stored dry or in distilled or deionized water. Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03 1
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©Eastman Kodak Company, 1999 Proce
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ECP-2-1101 Ferrocyanide in Ferricya
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3 Analytical Procedures for Chemica
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Spectrophotometric Determination of
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Potentiometric Determination of Bro
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PROCEDURE B For Seasoned Tank and R
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APPARATUS All volumetric glassware
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APPARATUS All pipettes and volumetr
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Potentiometric Determination of Amm
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PROCEDURE A. Sample Treatment 1. Pi
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Titrimetric Determination of Buffer
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Buffering Capacity Determination of
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Titrimetric Determination of EASTMA
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VISUAL TITRATION STATISTICS Repeata
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Back-Extraction of the Developing A
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Potentiometric Determination of Fer
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Recovery Recovery is used instead o
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CALCULATIONS For Na3Fe(CN) 6 g/L Na
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Cerimetric Determination of Sodium
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Bias Bias is a statistically signif
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APPARATUS Pipet (40-mL) Graduated C
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B. Analysis of Standards 1. Run eac
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Determination of Ferrous Iron in EA
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PROCEDURE Blank 1. Set a double-bea
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APPENDIX B This appendix contains t
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Titrimetric Determination of Hypo I
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B. Thiosulfate Determination 1. Sam
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Example Potentiometric Calculations
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APPARATUS Double Beam Spectrophotom
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APPENDIX II This appendix contains
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Calculations a. Range: 0.5-2.5 g/L
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APPENDIX 2 Typical Absorptivity mL
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Procedure Preparation of 10 g/L Iro
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Determination of Total Iron in East
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Determination of Total Iron in East
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Determination of Total Iron in EAST
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12. Press ‘ZERO’. The instrumen
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PROCEDURE A. Spectrophotometer Zero
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Absorptivity of Iron-Thiocyanate Co
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Potentiometric Determination of Unc
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Potentiometric Determination of Kod
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Titrimetric Determination of Persul
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APPARATUS Conical Flask with stoppe
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Potentiometric Determination of Sil
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APPARATUS METROHM 536 Titrator or e
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Potentiometric Determination of Sod
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PROCEDURE Treatment of the Sample 1
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Iodometric Determination of Sodium
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Determination of Sodium Sulfite in
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Procedure Treatment and Titration o
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Iodometric Determination of Sulfite
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Potentiometric Determination of Tot
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Automated Titration An example of a
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Titrimetric Determination of EASTMA
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VISUAL TITRATION STATISTICS Repeata
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Titration of the Developing Agent w
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Cerimetric Determination of CD-2 Co
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Cerimetric Determination of KODAK C
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Back-Extraction of CD-2 1. Add 50 m
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CALCULATIONS For Na3Fe(CN) 6 g/L Na
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Bias Bias is a statistically signif
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Hydroquinone in Sound Track Develop
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Titrimetric Determination of Hypo I
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B. Thiosulfate Determination 1. Sam
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Examples: Titration mL 0.1 N Na 2S
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Potentiometric Determination of Pot
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PROCEDURE A. Preparation of Sample
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Titrimetric Determination of Persul
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APPARATUS Conical Flask with stoppe
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Determination of the pH of the East
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Determination of the pH of Processe
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Potentiometric Determination of Sil
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Determination of Sodium Metabisulfi
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II. Visual Endpoint Titrations A. R
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Viscosity Determination of Sound-Tr
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Titrimetric Determination Of Benzyl
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PROCEDURE B For Seasoned Tank Note:
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CALCULATIONS mL AgNO 3 that would b
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Titrimetric Determination of Buffer
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Page 211 and 212: Spectrophotometric Determination of
Page 213 and 214: Titrimetric Determination of Citraz
Page 215 and 216: Potentiometric Determination of Eth
Page 217 and 218: Titrimetric Determination of Ferric
Page 219 and 220: Iodometric Determination of Ferricy
Page 221 and 222: Potentiometric Determination of Fer
Page 223 and 224: Iodometric Determination of Formali
Page 227 and 228: Titrimetric Determination of Hypo I
Page 229 and 230: Potentiometric Determination of Iod
Page 231 and 232: Potentiometric Determination of Pot
Page 233 and 234: Titration Note: For preparation of
Page 235 and 236: Titrimetric Determination of Persul
Page 239 and 240: APPARATUS Spectrophotometer with a
Page 241 and 242: APPENDIX B Effect of Temperature in
Page 243 and 244: Potentiometric Determination of Sil
Page 245 and 246: Potentiometric Determination of Sod
Page 247 and 248: Iodometric Determination of Total S
Page 249 and 250: Titrimetric Determination of Total
Page 251 and 252: Table 2 Contribution of Constituent
Page 253 and 254: Determination of Sulfite in KODAK R
Page 255 and 256: CALCULATIONS Na2SO3 , g/L = (mL B -
Page 257 and 258: Colorimetric Determination of Thioc
Page 259 and 260: APPENDIX A Calibration of Spectroph
Page 261: Analysis Order for Photographic Pro
Page 265 and 266: The Selection, Care, and Use of Vol
Page 267 and 268: In observing the lowest point on th
Page 269 and 270: 4. Graduated Cylinders and Tip-up P
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Page 275 and 276: pH Measurement of Photographic Proc
Page 277 and 278: Temperature Equilibration All sampl
Page 279 and 280: Low-range pH Measurements (pH 1-7)
Page 281 and 282: Preparation of Control Buffers 1. p
Page 283 and 284: Standardization of pH Meter - Low p
Page 285 and 286: Reference Electrode Care/Rejuvenati
Page 287 and 288: Potentiometric Titrations for Photo
Page 289 and 290: difference corresponds to the poten
Page 291 and 292: Determination of Residual Thiosulfa
Page 293 and 294: APPENDIX A Calibration Procedure Th
Page 295 and 296: Determination of Silver in Thiosulf
Page 297 and 298: Note: The appropriate amounts of 0.
Page 299 and 300: The Determination of Specific Gravi
Page 301 and 302: Instructions for Performance Checks
Page 303 and 304: Processing KODAK Motion Picture Fil
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