Caustic soda, granular

CAUSTIC SODA, dry pOp CAUSTIC SODA, flake pop CAUSTIC SODA, granular pop CAUSTIC SODA, Uquid pop CAUSTIC SODA, soUd pop CAUSTIC SODA, solution pOp HYDROXYDE de SODIUM (FRENCH) LEWIS-RED DEVIL LYE LYE pop O NATRIUMHYDROXID (GERMAN) NATRIUMHYDROXYDE pUTCH) SODA LYE SODIO(IDROSSIDO di) (ITALIAN) SODIUM HYDRATE pop O SODIUM HYDROXIDE, bead pOp SODIUM... 

CAUSTIC SODA, GRANULAR CAUSTIC SODA, LIQUID CAUSTIC SODA, SOLID CAUSTIC SODA, SOLUTION LEWIS-RED DEVIL LYE LYE SODALYE SODIUM HYDRATE SODIUM HYDROXIDE, BEAD SODIUM HYDROXIDE, DRY SODIUM HYDROXIDE, FLAKE SODIUM HYDROXIDE, GRANULAR SODIUM HYDROXIDE, SOLID WHITE CAUSTIC... 

Crystalline solid or amorphos powder exists in two forms, alpha and beta forms the alpha form is a granular powder the beta form is a gelatinous mass of indefinite composition density 1.92 g/cm decomposes to beryllium oxide when heated at elevated temperatures (decomposition commences at 190°C and completes at red heat) practically insoluble in water and dilute alkahes soluble in acids and hot concentrated caustic soda solution. 

The distillation is continued till the greater part of the liquid has distilled over, and no oily drops are to be seen in the condenser. The residue consisting of a concentrated solution of phosphorus and phosphoric acids in addition to excess of red phosphorus is discarded. The distillate is shaken up with water to remove alcohol, and then with dilute caustic soda to remove free iodine. Enough alkali must be used to render the lower layer of alkyl halide colourless. The latter is then separated ofl, dried over granular calcium chloride (6 gms.) and distilled. The preparation should be kept in the dark in a well-stoppered bottle. If exposed to light, iodine slowly separates, but may be prevented from so doing by adding a small quantity of colloidal silver to the liquid. 

Properties White crystals or granular powder characteristic odor aromatic, pungent taste. Becomes discolored with age, affected by light. Mp 59-61C. Soluble in benzene, chloroform, dilute caustic soda, alcohol slightly soluble in water. 

When tallow is boiled for a considerable time in a solution of caustic soda (or ley, as the solution is called) the fiaity matters , stearine and palmitine, assume a granular or curd-like appearance, entirely losing their greasy and oily charaoter and if a small portion be pressed between the folds of a piece of paper it will not produce a greasy... 

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