The reason of this appears to be that a part of the manganese is first precipitated as hydrated sesquioxide, which is afterward oxidized to hydrated peroxide, for the upper portion of the liquid may sometimes be colored by chameleon, while the lower portion, which is in closer contact with the precipitate, is less colored or absolutely colorless. ❋ Various (N/A)
Oxisols with sesquioxide clays also tend to be highly permeable. ❋ Unknown (1991)
As an antidote, the best when the poison is in solution is the hydrated sesquioxide of iron, formed by precipitating tinctura ferri perchloridi with excess of ammonia, or carbonate of soda. ❋ Unknown (N/A)
Gmelin states that yellow prussiate of potash yields with a solution of oxalate of sesquioxide of cobalt a blue resembling Prussian blue -- that, in fact, there can be obtained a Prussian blue with a base of cobalt instead of iron. ❋ George Field (N/A)
During the operation the mass is constantly puddled to bring all the particles into contact with the hot air, so that all the sesquioxide of chromium of the ore will be oxidized. ❋ Various (N/A)
_ -- On the electrolysis of the ammonical solution the sesquioxide appears at the positive pole. ❋ Various (N/A)
‘Harvest Scene’ in the exhibition, being from an albumen negative lent me by Mr. Ross, the well-known Edinburgh photographer, is an example, the salt of the sesquioxide of uranium being in this case the hydrofluate, and the time of exposure from the strength of the albumen negative fully an hour of good sunshine. ❋ Peter C. Duchochois (N/A)
In like manner it frequently happens that unpainted iron, such as weather vanes, fences, etc., is exposed to the air for a century with very little injury, being covered with a thin coating of the magnetic oxide (proto-sesquioxide), which acts as a protection and prevents farther action. ❋ Various (N/A)
The investigation of Weppen appears to prove that the action of the charcoal extends to all metallic salts; with the following, no doubt remains of this being so, to wit: -- the sulphates of copper, zinc, chromium, and protoxide of iron; the nitrates of lead, nickel, silver, cobalt, suboxide and oxide of mercury; the protochlorides of tin and mercury; the acetates of lead and sesquioxide of iron; and the tartrate of antimony. ❋ George Field (N/A)
When the oxidation is completed, the mass contains: Chromate of calcium, chloride of calcium, carbonate of lime and caustic lime in excess, sesquioxide of iron and the gangue, part of which is united with the lime. ❋ Various (N/A)
The intimate mixture of the material before treatment being made mechanically, the puddling is avoided, and in consequence a greater proportion of the sesquioxide of chromium in the ores is utilized. ❋ Various (N/A)
Send to druggist's for two ounces hydrated sesquioxide of iron, the best antidote, and give tablespoonful every quarter hour in half a glass of water. ❋ Kenelm Winslow (N/A)
*** “The next class of processes are dependent on the sensitiveness to light of the salts of uranic oxide or sesquioxide of uranium, U2O3.” ❋ Peter C. Duchochois (N/A)
From a nitric acid solution it is thrown down, according to the proportion of free acid, either as sesquioxide only or in small quantities as silvery, metallic leaflets; from alkaline solutions it is deposited as sesquioxide and metal, the latter of a lead-gray color. ❋ Various (N/A)
The rare metal iridium affords a blue which is a mixture of the oxide and the sesquioxide. ❋ George Field (N/A)
The red coloration disappears, a part of the iron perchloride is washed out, and in the parts which have not been acted on by light the perchloride is transformed into sesquioxide. ❋ Peter C. Duchochois (N/A)
The ore very finely pulverized is mixed with chloride of calcium or lime, or carbonate of calcium, in such proportions that all the base, proceeding from the caustic lime or the carbonate of calcium put in the mixture, shall be in slightly greater quantity than is necessary to transform into chromate of calcium all the sesquioxide of chromium of the ore, when this sesquioxide will be by oxidation changed into the chromic acid state. ❋ Various (N/A)
The colouring matter of which is sesquioxide of iron, is used as a crayon. ❋ George Field (N/A)
By mixing it in the same way with ammonio-oxalate of sesquioxide of iron, we get a dull green picture, changeable through intermediate stages into brown by alkaline carbonates, and that into a ❋ Peter C. Duchochois (N/A)
It is only necessary then to expose the loaves to the air at the ordinary temperature, for the oxidation of the sesquioxide of chromium will go on by degrees without any manipulation, by the action of the atmospheric air, the matter thus prepared having a sufficient porosity to allow the air free access to the interior of the mass. ❋ Various (N/A)
