DETERMINATION OF CHLORINE IN CHLORIDE, SAMPLE No. ===================================================================== | | Weight sample and tube| 16.1721 | 15.9976 | 15.9976 | 15.7117 | ------- | ------- Weight sample | .1745 | .2859 | | Weight crucible | | + precipitate | 14.4496 | 15.6915 Constant weights | 14.4487 | 15.6915 | 14.4485 | | | Weight crucible | 14.2216 | 15.3196 Constant weight | 14.2216 | 15.3194 | | Weight AgCl | .2269 | .3721 | | log Cl | 1.5496 | 1.5496 log weight AgCl | 9.3558 - 10 | 9.5706 - 10 log 100 | 2.0000 | 2.0000 colog AgCl | 7.8438 - 10 | 7.7438 - 10 colog sample | 0.7583 | 0.5438 | ------- | ------- | 1.5075 | 1.5078 | | Cl in sample No. | 32.18% | 32.20% | | ===================================================================== Signed STRENGTH OF REAGENTS The concentrations given in this table are those suggested for use in the procedures described in the foregoing pages. It is obvious, however, that an exact adherence to these quantities is not essential. Approx. Approx. Grams relation relation per to normal to molal liter. solution solution Ammonium oxalate, (NH_{4})_{2}C_{2}O_{4}.H_{2}O 40 0.5N 0.25 Barium chloride, BaCl_{2}.2H_{2}O 25 0.2N 0.1 Magnesium ammonium chloride (of MgCl_{2}) 71 1.5N 0.75 Mercuric chloride, HgCl_{2} 45 0.33N 0.66 Potassium hydroxide, KOH (sp. gr. 1.27) 480 Potassium thiocyanate, KSCN 5 0.05N 0.55 Silver nitrate, AgNO_{3} 21 0.125N 0.125 Sodium hydroxide, NaOH 100 2.5N 2.5 Sodium carbonate. Na_{2}CO_{3} 159 3N 1.5 Sodium phosphate, Na_{2}HPO_{4}.12H_{2}O 90 0.5N or 0.75N 0.25