Sodium solubilities

Ethylene cyanohydrin, 1 358, 404 10 639 Ethylenediamine, 2 129 8 485 as chelant, 5 709 molecular formula, 5 712t physical properties, 8 486t pK values, 8 487t prices of commercial, 8 496t sodium solubility in, 22 764 typical specifications, 8 496t Ethylenediaminetetraacetate (EDTA), 7 576... 

The melting point of sodium chloride is 800°C [301], At this high temperature, the chlorine gas obtained at the anode, would corrode all the cell components getting into contact with it. The sodium solubility in the molten salt is high (4.2 wt%) and so is its vapor pressure (50 kPa) [302], Therefore an electrolyte of lower melting point must be used. 

Synonyms. Ethaminal Sodium Mebumalnatrium Pentobarbital Sodium Soluble Pentobarbitone. 

The cell bath in early Downs cells (8,14) consisted of approximately 58 wt % calcium chloride and 42 wt % sodium chloride. This composition is a compromise between melting point and sodium content. Additional calcium chloride would further lower the melting point at the expense of depletion of sodium in the electrolysis Zone, with the resulting complications. With the above composition, the cells operate at 580—600°C, well below the temperature of highest sodium solubility in the salt bath. Calcium chloride causes problems because of the following equilibrium reaction (56) ... 

Sodium salt. ClH1]N1NaOj, barbital sodium, sodium 5,5-dicthvibarbiturate, barbitone sodium, soluble barbital, sodium diethylmalonylurea, Veronal sodium, Medinal, Embinat. Bitter crystals or powder. One gtam dissolves in 5 ml water. 2.5 ml boiling water, 400 ml ale. Aq soln is alkaline to litmus and pbenolphthalein. pH of 0.1 molar aq soln, 9.4. 

Sodium salt, CjjH NjNaOjS sulfadiazine sodium, soluble sulfadiazine. White powder. On prolonged exposure to humid air, it absorbs carbon dioxide with the liberation of sulfadiazine and becomes incompletely sol in water. One gram dissolves in about 2 ml of water. Slightly sol in ale. Solns are alkaline to phenolphthalein (pH 9 -11). 

Sodium is soluble in ethylenedi amine (16,17), but solubility in other amines such as methyl- or ethyl amine may require the presence of ammonia. Sodium solubility in ammonia and ethylenediamine solutions has been extensively investigated (18). Sodium is insoluble in most hydrocarbons and is... 

Sodium 5-allyl-5-(l-methylbutyl) barbiturate 2,4,6 (IH, 3H, 5H)-Pyrimidinetrione, 5-ethyl-5-(1-methylbutyl), monosodium salt Ethaminal Sodium Soluble Pentobarbitone Pentobarbitone Sodium B.P., Eur. P, Ind. P,... 

Insoluble in water, soluble in organic solvents b.p. — 15°C. Prepared by treating 1,4-dibromo-butane with metallic sodium. Reduced to n-butane by hydrogen at 200" C in presence of nickel catalysts. 

Basic copper ethanoate arsenates(iii) prepared from verdigris (or other basic copper salt), sodium arsenate(m) and ethanoic acid. Used in insecticides for spraying fruit trees. Readily decomposed to soluble arsenic compounds so use is very restricted. 

C12H9N3O4. A brownish-red powder, soluble in sodium hydroxide. Used for the detection and estimation of magnesium, with which it forms a blue lake in alkaline solutions. 

C12H12N2O3. White crystals, m.p. 174°C. Prepared by condensing the ethyl ester of phenylethylmalonic acid with urea. It is a more active hypnotic than barbitone. It and its sodium salt - soluble phenobarbitone - are used as sedatives and in treating epilepsy. 

CfiHsNjOs. Red needles m.p. 168-169°C. Soluble in dilute acids and alkalis. Prepared by reduction of picric acid with sodium hydrogen sulphide, ft is used for the preparation of azodyes, which can be after-chromed by treatment with metallic salts owing to the presence of a hydroxyl group ortho to the amino-group. 

The alkali silicates are soluble in water and are used industrially. See sodium silicates. 

NHCOCH3. White crystals, m.p. 18l-l83"C. Soluble sulphacetamide is the sodium salt which is soluble in water. Il is prepared by acetylating sulphanilamide and hydrolysing one acetyl group. Being more soluble than most of the sulphonamides it is used in treating infections of the urinary tract and of the conjunctiva. 

C10H10N4O2S. White powder, which darkens on exposure to light m.p. 255-256 C. Prepared by condensing p-acet-amidobenzenesulphonyl chloride with 2-aminopyrimidine and subsequent hydrolysis. Soluble sulphadiazine is the sodium salt. Sulphadiazine is the least toxic of the more potent sulphonamides. ... 

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