Caustic Soda: | |
Sampling | 5 |
Total Alkalinity as Sodium Oxide (Na2O) | 6 – 8 |
Sodium Hydroxide (NaOH) | 9 – 11 |
Carbonate as Sodium Carbonate (Na2CO3) | 12 |
Carbon Dioxide (CO2) by the Evolution Method | 13 – 16 |
Soda Ash: | |
Sampling | 17 |
Matter Volatile at 150 to 155°C | 18 and 19 |
Total Alkalinity as Sodium Carbonate (Na2CO3 ) | 20 – 22 |
Sodium Bicarbonate (NaHCO3) | 23 – 25 |
Sodium Bicarbonate (NaHCO3) by Potentiometric Titration | 26 – 28 |
Matter Insoluble in Water | 29 and 30 |
Apparent Density | 31 and 32 |
Modified Soda (Sequicarbonate Type): | |
Sampling | 33 |
Total Alkalinity as Sodium Oxide (Na2O) | 34 – 36 |
Sodium Bicarbonate (NaHCO3) and Sodium Carbonate (Na2CO3) | 37 – 39 |
Matter Insoluble in Water | 40 |
Sodium Bicarbonate: | |
Sampling | 41 |
Sodium Bicarbonate, Sodium Carbonate, and Free Moisture | 42 – 45 |
Matter Insoluble in Water | 46 |
Sodium Metasilicate, Sodium Sesquisilicate and Sodium Orthosil- icate: | |
Sampling | 47 |
Total Alkalinity as Sodium Oxide (Na2O) | 48 – 50 |
Total Silica as SiO2 | 51 – 53 |
Sodium Metasilicate (Na2SiO3·5H2O) | 54 |
Sodium Sesquisilicate (3Na2O·2SiO2·11H2O) | 55 |
Matter Insoluble in Water | 56 and 57 |
Loss on Ignition of Sodium Sesquisilicate (3Na2O·2SiO2 ·11H2O) | 58 and 59 |
Sodium Orthosilicate (Na4SiO4) | 60 |
Trisodium Phosphate: | |
Sampling | 61 |
Trisodium Phosphate (Na3PO4) Content and Phosphorus Pentoxide (P2O5) | 62 – 64 |
Trisodium Phosphate Calculated as Na3PO4·12H2O, Na3PO4· H2O, Na3PO4, and as P2O5 | 65 – 68 |
Total Alkalinity as Sodium Oxide (Na2O) | 69 – 71 |
Matter Insoluble in Water | 72 and 73 |
Tetrasodium Pyrophosphate: | |
Sampling | 74 |
Tetrasodium Pyrophosphate (Na4P2O7) | 75 – 79 |
Matter Insoluble in Water | 80 and 81 |
Loss on Ignition | 82 and 83 |
Borax: | |
Sampling | 84 |
Total Borate and Excess Alkalinity or Acidity | 85 – 87 |
Matter Insoluble in Water | 88 and 89 |
Sodium Triphosphate: | |
Sampling | 90 |
Tritratable Na2O | 91 – 94 |
Total P2O5: | |
Preferred Method | 95 – 97 |
Alternative Method | 98 – 101 |
pH Titration | 102 – 107 |
Quantitative Separation and Measurement of Various Phosphates: | |
Reverse-Flow Ion-Exchange Chromatography (Preferred Method) | 108 – 119 |
Paper Chromatographic Method | 120 – 127 |
pH of 1 percent Solution | 128 |
Turbidity | 129 |
Temperature Rise | 130 – 134 |
Sulfate | 135 – 137 |
Ignition Loss | 140 and 141 |
Matter Insoluble in Water | 142 – 144 |
Particle Size | 145 |
Orthophosphate | 146 – 151 |