Grey lime

Fig. 19. Profile of locality no. 2 of Vertesszolos. 1. detrital cone 2. sandy loess 3. grey lime mud 4. freshwater limestone blocks 5. slope debris.

Grey lime is used to describe some semi-hydraulic limes, which often have a warm grey colour. 

Chemical Designations - Synonyms Quicklime Unslaked Lime Chemical Formula CaO. Observable Characteristics - Physical State (as normally shipped) Solid Color White yo grey Odor. Odorless. 

To detect elderberry coloring in. port [ nd. Other red wines, aeetete of lead is the simplest test, With pure red wine it throws down a greenish-grey precipi-, tate. A deep blue precipitate isthe result of elder berries, logwood, and bilberries, Brazil wood. and red sunders are thrown down red. Lime water destroys the color imparted by beet... 

Gypsum white or grey CaS04 2 H20 Ba, Sr, Mg Also called hydrated gypsum, lime, gips, selenite New York, Maryland, Oklahoma... 

Vegetable black gives little ash (usually not more than 4—5%). which is pale grey and alkaline and largely soluble in hydrochloric acid its principal constituents are lime, magnesia, potash and phosphoric acid. 

Calcium Sulfide (Crude CaS is called Sulfurated lime, Calcic liver of sulfur. Liver of lime. Hepar caicis or Oldhamite). CaS mw 72.14 colorl cub cryst the crude material is yel to pale grey odor of H2S in moist air unpleasant alkaline taste mp > 2000° (decompn) d 2.5g/cc RI 2.137. V sol in solns of amm salts sol in hot w with partial decompn si sol in cold w insol in ethanol. CA Registry No [20548-54-3]. Prepn is by heating pure CaC03 in a stream of H2S+H2 at 1000°... 

United States.—The principal deposits are in South Carolina, Florida, Tennessee, Arkansas, Utah and Wyoming. The South Carolina deposits are of Miocene age and occur both as land and river rock. They contain 25 to 28 per cent, of phosphoric oxide and 35 to 42 per cent, of lime. They were the earliest to be exploited, namely, from 1868 onwards, and in 1893 they furnished about one-fifth of the world s supply. Since this date the production has declined, while that of Florida has greatly increased. In 1913 Florida and Tennessee together produced some 96 per cent, of the total output from the United States of America. The hard-rock deposits of Florida are of Tertiary age, and they run parallel to the coast for 144 miles. After concentration by mechanical means they contain usually from 77 to 79 per cent, of calcium phosphate (more rarely up to 82 per cent.) with 3 per cent, of oxides of iron and alumina, some calcium fluoride and other constituents, and 3 per cent, of moisture. The best grades of Tennessee rock were guaranteed to contain 72 per cent, of calcium phosphate, and 65 per cent, is common. The soft rock is a phosphatic clay. The river pebbles are dark grey to black and are very cheaply obtained by dredging. 

---