However, if the materials being composted are themselves deficient in calcium then the organisms of decomposition may not develop fully.
There is no disputing that the calcium content of plant material and animal manure resulting from that plant material is very dependent on the amount of calcium available in the soil.
The impurities combine with calcium and magnesium, rise to the surface of the molten metal, and are skimmed off.
Soils deficient in calcium can be inexpensively improved by adding agricultural lime which is relatively pure calcium carbonate (CaC03).
However, ammonium sulfate does not eliminate or reduce worms when the soil contains large amounts of chalk or other forms of calcium that counteract acidity.
Limestone and dolomite--soft, easily powdered rocks--have been used for centuries to add calcium and magnesium.
The other pot had just as much calcium but had more potassium, giving it a ratio similar to a high quality farm soil in the eastern United States.
One pot had soil with a high amount of calcium relative to the amount of potassium, imitating dryland prairie soil.
Minerals, especially phosphorus which tends to be locked up as insolublecalcium phosphate and consequently unavailable to plants, become soluble in the worm's gut, and thus available to nourish growing plants.
Average vegetation from dryland soils contains slightly more potassium than calcium (1.
In dryland soils there is much morecalcium in the soil than there is potassium while in wetter soils there is as much or more potassium than calcium.
Agriculturally useful slag has an average composition of 40 percent calciumand 5 percent magnesium.
They are called basic as opposed to "acid" rocks because they are richer in calcium and magnesium with lesser quantities of potassium.
Borax is also manufactured from boronitrocalcite, a calcium salt of boric acid, which is found in Chili and other parts of South America.
The coastal motor boats had lit the approaches and the ends of the piers with calcium flares and made a smoke-cloud which effectually hid the fact from the enemy.
Upon contact with the water it ignited a calcium flare, and he was adrift in the uncanny illumination with a German machine-gun a few hundred yards away giving him its undivided attention.
It bobbed up again under the battleship's quarter, emitting a dense cloud of calcium smoke as it did so.
By the time the swimmers reached the Kisbie the emission of calcium smoke had ceased.
Only practice torpedoes send up a calcium light when their compressed air has given out.
In the latter case the matrix contains calcium salts, in the former it is composed of the peculiar homogeneous mucoid tissue which stains so characteristically with thionin.
The groundwork of this tissue, in which these cells and fibrils are embedded, contained calcium salts, and so the whole tissue was preserved.
This pigment is apparently calcium phosphate, which still remains as the 'brain-sand' of the human pineal gland.
The chief constituents of the waters are calcium sulphate, sodium sulphate, magnesium chloride, calcium carbonate, and sodium chloride, and there are traces of other minerals.
The alkaline earths, the oxides ofcalcium and barium.
Calcium oxide is also good but zinc oxide must be used sparingly as it is apt to suffer if overfired.
The sample is exhausted with water, filtered, and, to eliminate calcium sulphate and basic iron sulphate, evaporated to dryness.
In the air it deliquesces much more rapidly than ignitedcalcium chloride.
With certain waters such as those derived from the chalk the incrustation is of a different character, consisting of nearly pure calcium carbonate.
Having two atoms or equivalents of calcium to the molecule.
Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite.
A short glass jar fitted with an air-tight cover, and containing some desiccating agent, as sulphuric acid or calcium chloride, above which is suspended the material to be dried, or preserved from moisture.
The two substances may be roughly separated by the addition of calcium chloride, which combines with the methyl-alcohol.
Acetone is usually prepared, however, by the dry distillation of crude calcium or barium acetate.
Finally, dry the product by adding a little granulated calcium chloride, and allowing to stand for some little time, it may then be distilled.
The calcium carbonate is also finely pulverised and dried, and is added to the mixed nitro-celluloses after they have been sifted through a 16-mesh sieve.
Their calcium salts are less soluble than the picrate, and may be approximately separated from it by fractional crystallisation, or by precipitating the hot saturated solution of the sample with excess of lime water.
Calcium carbonate and mercury chloride have no influence.
It is a nitro-cellulose powder, a mixture of insoluble and soluble nitro- cellulose together with the nitrates of barium and potassium, and a small percentage of calcium carbonate.
The nitrates are next weighed out and dissolved in hot water, and to this solution is added the mixture of nitro-celluloses and calcium carbonate with constant stirring until the entire mass becomes a homogeneous paste.
So far as its calcium value is concerned, calcium glycerophosphate has no advantages over such calcium salts as the carbonate, phosphate, lactate, or chlorid.
Report of the Council on Pharmacy and Chemistry Calcium glycerophosphate and sodium glycerophosphate were accepted for New and Nonofficial Remedies chiefly in order that these products might be standardized.
It should be understood that the calcium and iron salts are held in solution by the hydrochloric acid.
Absorption experiments have been carried out with creosote and creosote compounds, such as creosote with hypophosphites or calcium or creosote carbonate, chiefly by a study of the elimination products in the urine.
As a matter of fact, the phosphates of calcium and potassium present in a dose of Phillips’ Phospho-Muriate of Quinine are probably devoid of appreciable effect in practically all conditions.
By the acid of the gastric juice, the calcium iodid and calciumiodate are decomposed with liberation of free iodin.
Modern Pharmacy has devised no better means of utilizing these anti-syphilitics than Elixir Iodo-Bromide of Calcium Comp.
The manufacturers’ statement of composition is: “Each fluidounce represents Nux Vomica 8 grains, Damiana 64 grains, combined with Glycerophosphates of Calcium and Sodium.
He found that this produced calcium carbide and secured a patent for the invention in 1892.
By the slow action of acidulated waters, the grey limestone deteriorated into a yellowish clay-bank, and now its particles are being re-united into solid rock by the deposit of calcium carbonate from the drip.
This calcium carbonate was slowly deposited in crystalline form, so that in time the cracks were filled and the crushed rock firmly cemented with calcite seams.
But the geodes show some striking combinations of both crystals and colors with an exterior formed like box work, composed of a very heavy dark material said to be a mixture of barium, calcium and iron.
The chloride of calcium solution was poured into a glass tumbler, then rubbed over the inside and outside of the beaker.
On the one hand, portions of anhydrous calcium sulphate, when moistened with water, dissolve as they are hydrated, forming a supersaturated solution.
These are composed chiefly of hydrogen and calcium gas, though other elements also appear, especially near the bases of the prominences.
At this temperature it is possible for the more refractory chemical compounds to form, the oxides and the hydrides, and the spectra of sun-spots reveal the presence of titanium oxide and magnesium and calcium hydride.
Calcium carbide for making the gas can be transported without difficulty.
Ammonium chlorate, NH4ClO3, is obtained by neutralizing chloric acid with either ammonia or ammonium carbonate, or by precipitating barium, strontium or calcium chlorates with ammonium carbonate.
The formation of hydrogen is caused by small traces of metallic calcium occasionally found free in the carbide, and cases have been known where this was present in such quantities that the evolved gas contained nearly 20% of hydrogen.
The first action of the lime is to convert the manganese chloride into manganous hydrate (Mn(OH)2) and calcium chloride; then more lime is added which greatly promotes and hastens the oxidizing process.
The solution ofcalcium chloride is run to waste, the ammonia is re-introduced into the process.
Dr Wolff employs purifiers in which the gas is washed with water containing calcium chloride, and then passed through bleaching-powder solution or other oxidizing material.
Moissan in France that if lime and carbon be fused together at the temperature of the electric furnace, the lime is reduced to calcium, which unites with the excess of carbon present to form calcium carbide.
Chemically, analcite is a hydrated sodium and aluminium silicate, NaAlSi2O6 + H2O; small amounts of the sodium being sometimes replaced by calcium or by potassium.
Add acetic acid to the filtrate till slightly alkaline, boil till carbon dioxid is expelled, and if on the addition of calcium sulfate a precipitate forms, it indicates the presence of malic acid.
Other adulterants of cream of tartar are acid calcium phosphate, starch, gypsum, and alum.
Add a very little water to the residue and neutralize the extract with calcium carbonate.
This in turn is connected with a calcium chlorid tube and this with a small, hard glass tube, 15 or 20 cm.
Whenever the ash is greater than this it should be tested for calcium sulfate, the presence of a considerable quantity of which is an almost certain proof that starch glucose or invert sugar has been added to the honey.
If gypsum has been used to clarify the wine, it will be present in the cream of tartar as calcium tartrate.
Three quarts of milk would yield almost if not quite as much protein as the meat and a liberal supply of calcium to offset the iron furnished by the meat.
Some of our very common vegetables are good sources of the calcium (lime) and phosphorus so freely supplied in milk.
From the sea water the polyps secrete calcium carbonate and build it up into the stony framework which supports their colonies.
When springs rise from rocks containing gypsum they are hard with calcium sulphate.
In limestone regions springs are charged with calcium carbonate (the carbonate of lime), and where the limestone is magnesian they contain magnesium carbonate also.
The reef rock is made of corals in place and broken fragments of all sizes, cemented together with calcium carbonate from solution by infiltrating waters.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "calcium" in a variety of sentences. We hope that you will now be able to make sentences using this word.
