Sodium carbonate, anhydrous

Required Aniline, 20 ml. hydrochloric acid, 50 ml, sodium nitrite, 17 g. sodium carbonate (anhydrous) 17 g. sodium sulphite (7H2O), 115 g... 

This has the following composition Metol, 2 g sodium sulphite (anhydrous) 75 g hydroquinone, 8 g sodium carbonate (anhydrous), 37.5 g potassium bromide, 2 g water to make 1 L. Dissolve chemicals in order given. 

Substances 5-(Dimethylamino)-naphthalene-l-sulfonyl chloride Sodium carbonate, anhydrous Methanol Ethanol (96< 7o)... 

Sodium carbonate decahydrate Sodium carbonate anhydrous Methanol... 

Nitric acid, N-Methyl gluconamide. Acetic anhydride. Sodium bicarbonate. Methanol Dimethylurea, Nitric acid, Sulfuric acid. Methylene chloride, Sodium carbonate Anhydrous hydrazine, Cyanogen bromide, Isopropyl alcohol, Sodium nitrite, Sodium bicarbonate, Copper nitrate trihydrate, Nitric acid, Diethyl ether, Dimethyl sulfate... 

Sodium carbonate, anhydrous, 30.0g Potassium bromide, 0.5 g Water to make 1.0 liter... 

Water at 125F/52C, 500.0ml Metol, 2.5 g Sodium sulfite, 37.5 g Hydroquinone, 10.Og Sodium carbonate, anhydrous, 37.5 g +Potassium bromide, 13.0g Water to make 1.0 liter... 

Magnesium carbonate V Manganese carbonate P. 70 Manganese dioxide, powder IV, XI Nickel carbonate XI Phosphorus, red II, X Porcelain chips, unglazed E. 5, P. 56 Potassium carbonate IX Potassium chlorate III, VIII Potassium dichromate IV Potassium hydroxide II, III Potassium iodate VIII Potassium iodide IV, VIII Potassium nitrate IV, XI Potassium permanganate IV, VIII Potassium sulphate Q. 3 Silicon dioxide, precipitated IX Silicon dioxide, coarse sand P. 66, 67 Silicon dioxide, fine sand P. 8, 43 Sodium bicarbonate P. 55 Sodium bromide IV Sodium carbonate, anhydrous III, IX, XI... 

Sodium carbonate, anhydrous powder, supplied by J. T. Baker Chemical Company, is used directly. 

All solvents and chemicals were HPLC grade. Organic solvents, sodium carbonate (anhydrous), and sodium bicarbonate were purchased from Fisher Scientific (Fair Lawn, NJ, USA). Carbonate buffer, pH = 10.0, was prepared using the sodium carbonate (anhydrous), and sodium bicarbonate. A solution of 0.1 % triethylamine in methanol was made for the elution solvent. Diethylcarbamazine citrate was obtained from Sigma, and used to make stock solutions (St. Louis, MO, USA). The internal standard, 1-diethylcarbamyl-4-ethylpiperazine (E-DEC) was synthesized by the Division of Medicinal and Natural Products Chemistry at the University of Iowa, College of Pharmacy. Ultra-pure analytical grade Type I water was produced by a Milli-Q Plus water system (Millipore Corporation, Bedford, MA, USA). For the extraction of DEC and of its internal standard, Alltech Extract - Clean C18 cartridges, 500 mg with a 2.8 mL reservoir, and a SPE vacuum manifold (Alltech, Deerfield, IL, USA) were used. 

Sodium Carbonate Solution Dissolve 50.0 g of sodium carbonate anhydrous (Na2C03) and 37.2 g of disodium EDTA dihydrate (C1oH14N2Na2(V2H20) in about 900 mL of water. Transfer the solution into a 1000-mL volumetric flask, dilute to volume with water, and mix. 

Sodium acetate, CH3C00Na.3H20 Sodium bismuthate, NaBi03 Sodium carbonate (anhydrous), Na2C03 Sodium chloride, NaCl Sodium citrate, Na3C6H507.2H20... 

Sodium carbonate, anhydrous Buffer, solubilizing agent iv, im, ic... 

Less frequently used are lime, harium oxide, anhydrous sodium carbonate, anhydrous copper sulphate, phosphorus pentoxide, sodium, and others. 

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