Sienna, like umber, is essentially a silicate of iron and alumina, containing manganic oxide.
Umber, another naturally occurring pigment, consists of iron and aluminum silicates, containing varying proportions of manganic oxide, its color and tone varying according to the percentage of the latter.
It is possible that an intermediate manganic compound is formed which reacts rapidly with the ferrous compounds--thus in effect catalyzing the oxidizing process.
Many still insist that lodes, particularly those containing gold, are of igneous origin, and point to the black and brown ferro-manganic outcrops in confirmation.
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.
The animal fibres are readily dyed by boiling with a solution of potassium permanganate, which, being at first absorbed by the fibre, is readily reduced to insoluble brown manganic hydrate.
Manganic acid, an acid, H2MnO4, formed from manganese, analogous to sulphuric acid.
It crystallizes in large pink crystals, the colour of which is probably due to the presence of a small quantity of manganic sulphate or of a cobalt sulphate.
These salts are derived from manganic acid H2MnO4.
It dissolves in water forming manganic acid, H2MnO4.
It dissolves in cold concentrated hydrochloric acid, forming a dark brown solution which probably contains manganicchloride (see R.
Manganic Fluoride, MnF3, a solid obtained by the action of fluorine on manganous chloride, is decomposed by heat into manganous fluoride and fluorine.
The precipitate of the aluminium group may contain aluminium, chromium and ferric hydroxides (possibly traces of manganic hydroxide) and their basic carbonates.
The loss of weight in grains, if doubled, at once indicates the percentage richness of the mineral examined in manganic peroxide; or, more correctly, every grain of carbonic anhydride evolved represents 1.
Finely powdered manganic peroxide, potassium chlorate, and potassium hydrate, made into a thick paste with water, and heated to dull redness.
It is produced by igniting manganous carbonate, or manganic oxide, or manganic peroxide.
The loss of weight, doubled, indicates the amount of pure manganic peroxide, in the sample, as before.
Potassium chlorate, or nitrate, and potassium hydrate are made into a paste with water, and manganic peroxide added; the mass is dried and heated to redness.
Prepared on the large scale by heating a mixture of manganic peroxide and sodium hydrate to redness in a current of air.
The standard weight of manganic peroxide recommended to be taken by Fresenius and Will is 2.
Dark green, almost black crystals, readily soluble in water, but decomposed by excess, or by acids into manganic peroxide, and potassium permanganate.
The chief compounds are the following:-- =Manganic Hydrate.
Green insoluble powder, obtained by fusing barium hydrate, potassium chlorate, and manganic peroxide together, and washing the product.
The retort containing the undecomposed peroxide and chlorides being still kept at a red-heat, air or oxygen is passed over them, the result being that the manganic chloride is decomposed at once.
In connection with the medicinal applications of manganese it may be mentioned that manganic acid is the agent employed in Dr.
Manganic acid and permanganate of potash are of great use when applied in lotions (as in Condy's Fluid diluted) to foul and fetid ulcers.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "manganic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
