noun
definition
Any salt or ester of phosphoric acid.
definition
A carbonated soft drink sweetened with fruit syrup and with some phosphoric acid.
Examples of phosphates in a Sentence
Salt and phosphates of lime are exported.
There are three sources of phosphates which are of importance geologically.
The phosphatic rocks which occur among the sedimentary strata are the principal sources of phosphates for commerce and agriculture.
Of zinc phosphates we notice the minerals hopeite, Zn.
The principal exports are olive oil, wheat, esparto grass, barley, sponges, dates, fish (especially tunny), hides, horses, wool, phosphates, copper, zinc and lead.
The prosperity of the town is largely due to the export trade in phosphates, esparto grass, oil, almonds, pistachio nuts, sponges, wool, &c. There is in the Gulf of Gabes a rise and fall of 5 ft.
Columbia is in a fine farming region; is engaged extensively in the mining and shipping of phosphates; has an important trade in live-stock, especially mules; manufactures cotton, lumber, flour, bricks, pumps and woollen goods; and has marble and stone works.
It imports general merchandise and manufactures, and exports phosphates, iron, zinc, barley, sheep, wool, cork, esparto, &c. There are manufactories of native garments, tapestry and leather.
Where the production of acetylene is going on on a small scale this method of purification is undoubtedly the most convenient one, as the acid present absorbs the ammonia, and the copper salt converts the phosphuretted and sulphuretted hydrogen into phosphates and sulphides.
An additional basin, southeast of the main harbour, was opened in 1905 and is used for the exportation of phosphates.
The exports are chiefly phosphates and other minerals, cereals, olive oil, cattle, hides, sponges and wax.
The ultimate source of these mineral phosphates may be referred in most cases to the apatite widely distributed in crystalline rocks.
Being soluble in water containing carbonic acid or organic acids it may be readily removed in solution, and may thus furnish plants and animals with the phosphates required in their structures.
On the decay of these structures the phosphates are returned to the inorganic world, thus completing the cycle.
The soluble phosphates washed out of the guano may become fixed by entering into combination with the elements of the rock beneath.
Christmas Island has been a great source of phosphates of this type; also Jaluit Island in the Maldive Archipelago, Banaba or Ocean Island, and Nauru or Pleasant Island.
In the older formations the phosphates tend to become more and more mineralized by chemical processes.
Important deposits of mineral phosphates are now worked on a large scale in the United States, the annual yield far surpassing that of any other part of the world.
In 1892 the phosphates of Tennessee, derived from Ordovician limestones, came into the market.
From North Carolina, Alabama and Pennsylvania, also, phosphates have been obtained but only in comparatively small quantities.
Phosphates occur also in Egypt, in the desert east of Keneh and in the Dakla oasis in the Libyan desert.
Phosphates occur in Belgium, especially near Mons, and these, like those of north-east France, are principally in the Upper Chalk.
The Lower Greensand phosphates have been worked, under the name of " coprolites," at Potton in Bedfordshire and at Upware and Wicken in Cambridgeshire.
Many of the above include descriptions of mineral phosphates in other parts of the world.
The town is the seat of a sub-prefect and has a tribunal of first instance; it has trade in phosphates, of which there are workings in the vicinity, and carries on cotton-spinning and the manufacture of leather, paper and sugar.
The chief exports are sheep and oxen, most of which are raised in Morocco and Tunisia, and horses; animal products, such as wool and skins; wine, cereals (rye, barley, oats), vegetables, fruits (chiefly figs and grapes for the table) and seeds, esparto grass, oils and vegetable extracts (chiefly olive oil), iron ore, zinc, natural phosphates, timber, cork, crin vegetal and tobacco.
It is a business centre for the prosperous farming region by which it is surrounded, and is a shipping point for oysters and fish; among its manufactures are canned fruits and vegetables, flour, hominy, phosphates, underwear and lumber.
The Devonian system yields much oil and gas in western Pennsylvania, south-western New York, West Virginia and Ontario; and some of the Devonian beds in Tennessee yield phosphates of commercial value.
Grindstones, building-stone, talc, gypsum, marble and phosphates are also produced.
In 1840 a paper on the phosphates and arsenates, which was clearly unworthy of him, was refused by the Royal Society, and he was so incensed that he published it himself.
Aluminium phosphates may be prepared by precipitating a soluble aluminium salt with sodium phosphate.
The effects of bones are no doubt mainly due to the phosphates they contain, and they are most effectual on dry soils.
Both are remarkable for the quantity of nitrates and phosphates they contain.
Potash and soda are also valuable inorganic manures in the form of carbonates, sulphates, silicates and phosphates, but the most valuable is the nitrate of potash.
Phosphoric acid, in the form of phosphates, is a most valuable plant food, and is absorbed by most plants in fairly large quantities from the soil.
Soot forms a good top-dressing; it consists principally of charcoal, but contains ammonia and a smaller proportion of phosphates and potash, whence its value as a manure is derived.
In the basic Bessemer process phosphorus is readily removed by oxidation, because the product of its oxidation, phosphoric acid, P 2 O 5, in the presence of an excess of base forms stable phosphates of lime and iron which pass into the slag, making it valuable as an artificial manure.
Since the opening of the new port the traffic has considerably increased, and it exports oil, pig-lead, silver, flour, wine, marble and sandstone for paving purposes, while it imports quantities of coal, iron, cereals, phosphates, timber, pitch, petroleum, and mineral oils.
Under all these three conditions the diamond is associated with fragments of the rocks of the country and the minerals derived from them, 'especially quartz, hornstone, jasper, the polymorphous oxide of titanium (rutile, anatase and brookite), oxides and hydrates of iron (magnetite, ilmenite, haematite, limonite), oxide of tin, iron pyrites, tourmaline, garnet, xenotime, monazite, kyanite, diaspore, sphene, topaz, and several phosphates, and also gold.
Salt, phosphates and cattle are exported.
Should it be thought that the traces of the more valuable sorts of plant food (such as compounds of nitrogen, phosphates, and potash salts) existing in ordinary brook or river water can never bring an appreciable amount of manurial matter to the soil, or exert an appreciable effect upon the vegetation, yet the quantity of water used during the season must be taken into account.
Nitrates and phosphates are also found in various parts of the desert and are used as manures.
Berzelius as to their composition; and his observation that corresponding phosphates and arsenates crystallize in the same form was the germ from which grew the theory of isomorphism which he communicated to the Berlin Academy in December 1819.
Other instances of the isomorphism of thallous with potassium salts are the nitrates, phosphates, hydrazoates, sulphates, chromates, selenates, and the analogously constituted double salts, and also the oxalates, racemates and picrates.
Various thallous phosphates are known.
In this process phosphates must be absent, and the nitric acid liberated during the reaction should be neutralized as soon as possible.
Nitrates of cerium have been described, as have also phosphates, carbonates and a carbide.
Basic copper phosphates are of frequent occurrence in the mineral kingdom.
Copper arsenate is similar to cupric phosphate, and the resemblance is to be observed in the naturally occurring copper arsenates, which are generally isomorphous with the corresponding phosphates.
But in many regions the soil is deficient in phosphates and nitrates, and large irrigation works can be profitable only in districts where the soil is exceptionally fertile.