Mn₃O₄ per hectare (as manganous chloride) was applied to rice.
On the practical application of manganous chloride in rice culture.
Manganous hydroxide, Mn(OH)2, is obtained as a white precipitate on adding a solution of a caustic alkali to a manganous salt.
MnO2, the most important oxide, may be prepared by heating crystallized manganous nitrate until red fumes are given off, decanting the clear liquid, and heating to 150 deg.
Manganous Carbonate, MnCO3, found native as manganese spar, may be prepared as an amorphous powder by heating manganese chloride with sodium carbonate in a sealed tube to 150 deg.
Such mixtures are obtained by the action of alkaline hypochlorites on manganous salts, or by suspending manganous carbonate in water and passing chlorine through the mixture.
The hydrated form, found native as the mineral manganite, is produced by the spontaneous oxidation of manganous hydroxide.
Manganous oxide, MnO, is obtained by heating a mixture of anhydrous manganese chloride and sodium carbonate with a small quantity of ammonium chloride (J.
The ferric and aluminium sulphates present are thus converted into insoluble basic salts, and the residue yields manganous sulphate when extracted with water.
Manganous Sulphide, MnS, found native as manganese glance, may be obtained by heating the monoxide or carbonate in a porcelain tube in a current of carbon bisulphide vapour.
Manganous Sulphate, MnSO4, is prepared by strongly heating a paste of pyrolusite and concentrated sulphuric acid until acid fumes cease to be evolved.
Manganese Disulphide, MnS2, found native as hauerite, is formed as a red coloured powder by heating manganous sulphate with potassium polysulphide in a sealed tube at 160 deg.
Manganic Fluoride, MnF3, a solid obtained by the action of fluorine on manganous chloride, is decomposed by heat into manganous fluoride and fluorine.
Cotton is dyed by first impregnating it with a solution of manganous chloride, then dyeing and passing into a hot solution of caustic soda.
There is thus precipitated on the fibre manganous hydrate, which by a short passage into a cold dilute solution of bleaching powder is oxidized and converted into the brown manganic hydrate.
With oxygen it probably forms manganous oxide, which is less harmful than ferrous oxide.
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.
Only so much lime is used that an acid manganite is formed corresponding to one molecule of calcium oxide to two of manganous oxide.
Manganous acid, a hypothetical compound analogous to sulphurous acid, and forming the so-called manganites.
Defn: A compound of manganese dioxide with a metallic oxide; so called as though derived from the hypothetical manganous acid.
Note 4: The end-point is more permanent in cold than hot solutions, possibly because of a slight action of the permanganate upon the manganous sulphate formed during titration.
It is, however, possible to obtain a satisfactory, although somewhat fugitive end-point in the presence of manganous sulphate and phosphoric acid.
Only the manganousand the chromic salts, however, are of importance.
Write the equations for the preparation of manganous chloride, carbonate, and hydroxide.
This is due to the manganous oxide absorbing oxygen from the air.
A double decomposition takes place, resulting in the formation of manganous hydroxide and calcium chloride.
In boiling a muriatic solution of the cobaltic, nickelic, and manganous oxides, with the mercuric oxide, the first two oxides alone are precipitated.
By precipitating a solution of manganous sulphate with a solution of sodium phosphate.
Manganous salts are distinguished as follows:--The hydrates of potassium and sodium give white precipitates insoluble in excess, and rapidly turning brown.
Formed by adding potassium hydrate to manganous sulphate, and filtering and drying the precipitate in vacuo.
By dissolving manganous carbonate in dilute sulphuric acid, and evaporating the filtered solution so that crystals may form, or at once gently evaporating it to dryness.
By saturating a solution of tartaric acid with most manganous carbonate.
Found native as "Braumite," and readily formed by exposing manganous hydrate to the action of air, and drying, or by gently igniting the peroxide brown or black powder decomposed by heat.
By passing a current of hydrogen over manganouscarbonate heated to whiteness in a porcelain tube.
By passing a current of air through recently precipitated and moist manganous hydrate.
Olive-green powder rapidly oxidising on exposure to air, and soluble in acids forming manganous salts.
It is produced by igniting manganous carbonate, or manganic oxide, or manganic peroxide.
By neutralising concentrated acetic acid with manganous carbonate, and evaporating the solution so that crystals may form.
When taken out they have a brown appearance; this is owing to the deposition of manganous oxide, and may be removed by steeping the sponge for about two minutes in a 2 per cent.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "manganous" in a variety of sentences. We hope that you will now be able to make sentences using this word.
