Ammonia solutions specific gravity

Cellulose is a colourless, transparent mass, absolutely insoluble in water, alcohol, or ether. It is, however, soluble in a solution of cuprammoniac solution, prepared from basic carbonate or hydrate of copper and aqueous ammonia. The specific gravity of cellulose is 1.25 to 1.45. According to Schulze, its elementary composition is expressed by the percentage numbers —... 

Ammoniameter. This hydrometer, employed in finding the density of aqueous ammonia solutions, has a scale graduated in equal divisions from 0° to 40°. To convert the reading to specific gravity multiply by 3 and subtract the resulting number from 1000. 

Secondary butyl isothiocyanate, CH3. CH. CH(CH3). N C S, has been isolated from the oils of Cardamine amara and Cochlearia. It is a liquid with a powerful, irritating sulphur odour, having a specific gravity 0 9415 and boiling at 159° to 160°. Warmed with alcoholic solution of ammonia, it yields a thiourea, melting at 135° to 136°. 

Ammonium hydroxide solution - using a fume cupboard, dilute 158 ml ammonia solution (approximately 35% m/m NH3, 0.880 specific gravity) to 1 I. 

Carbonate op Strontia is found native as stron-tianite, both massive, and in forms belonging to the square prismatic system. It is most readily prepared pure by precipitating the nitrate or chloride with carbonate of ammonia, The artificial carbonate is beautifully white and soluble in one thousand five hundred and thirty-six parts of boiling Water. It is more soluble in aqueous solution of carbonio acid, and separates in needles when, evaporated. Heated to bright redness in a stream of watery vapor it loses its carbonic acid, and becomes changed into strontia. The symbol is SrO, CO Eq. 74-00 specific gravity, 3 605. 

This solution of ammonia has the specific gravity 0.925 and contains about 20 per cent of NIL,. 

Table XVIII.—Specific Gravity of Solutions of Ammonia under Saturation Pressure (grams per o.o.).

Ammonia solution is commonly supplied to laboratories as a 35% solution in water (0.88 specific gravity). In warm weather this strong solution develops pressure in its bottle and the cap must be released with care. 

Synthesis L-diiodo thyronine (1.05 g) is dissolved in ammonia (specific gravity 0.880) (40 ml) and methanol (40 ml) and iodinated slowly with shaking with N-iodine in KI solution at room temperature. After iodination,... 

Ammonia Solution occurs as a clear, colorless liquid. Upon exposure to air it loses ammonia rapidly. Its specific gravity is about 0.90. 

Potassium hexacyanocobaltate(III) crystals have a faint yellow color and belong to the monoclinic system. Their specific gravity is 1.906. The compound is not appreciably hydrolyzed iii solution, but concentrated mineral acids decompose it. On heating to moderately high temperatures it melts, with decomposition, to an olive-green mass. The crystals are very soluble in water at room temperature, only very slightly soluble in liquid ammonia at —33°, and insoluble in alcohol. The preparation of potassium hexacyanocobaltate(III) is sometimes used in qualitative analysis in the separation of cobalt and nickel. 

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