Baryta

The baryta is a heavy grayish porous substance prepared by carefully igniting the nitrate of barium; and of this each retort having the above dimensions holds about 125 lb. ❋ Various (N/A)

Carbonic acid readily betrays its presence through solutions of the alkaline earths such as baryta and chalk, in which its passage produces an insoluble carbonate, and consequently makes the liquid turbid. ❋ Various (N/A)

He used a vessel of 34 litres in volume, and washed the air with baryta-water, collecting the carbonate of baryta precipitated. ❋ Unknown (2007)

His process consisted in exhausting a large glass balloon of almost 10 lites capacity, in which baryta water was previously placed. ❋ Unknown (2007)

By turning the stopcock a fresh quantity of air was allowed to enter the globe: This was permitted to remain in contact with the baryta water for some time, the absorbtion of carbon dioxide being promoted by shaking the ballon. ❋ Unknown (2007)

The color of the baryta has the most influence on the highlights of the photograph. ❋ Unknown (2003)

On the bottom is the paper base; in the middle is the white-pigmented baryta layer; and on the top is the gelatin where the image-forming silver is dispersed. ❋ Unknown (2003)

The aqueous extract, freed from the pectin which it contains, yields with baryta - and lime-water yellow precipitates, from which acids separate the colouring matter of a vermilion hue. ❋ George Field (N/A)

Is a mixture of chloride and oxide of lead, formed by precipitating a solution of chloride of lead with soda, potash, lime, or baryta, in the caustic or hydrated state. ❋ George Field (N/A)

Occasionally, starch, chalk, white clay, and carbonate of baryta, are employed as adulterants; none of which, however, are inimical to stability. ❋ George Field (N/A)

A drop of phenolphthalein is now added, a little water, and the acidity determined by titration with deci-normal baryta solution, and the baryta solution taken calculated as oleic acid. ❋ Unknown (N/A)

Sir H. Davy tried to electrolyse baryta, but was unsuccessful; later attempts were made by him using barium chloride in the presence of mercury. ❋ Various (N/A)

_Uranium Orange_ is obtainable by wet and dry methods as a yellowish-red, or, when reduced to powder, an orange-yellow, uranate of baryta. ❋ George Field (N/A)

Barium bromate, Ba (BrO_3) _2, can be prepared by the action of excess of bromine on baryta-water, or by decomposing a boiling aqueous solution of 100 parts of potassium bromate with a similar solution of 74 parts of crystallized barium chloride. ❋ Various (N/A)

Barium dioxide, BaO_2, can be prepared as shown above, or in the hydrated condition by the addition of excess of baryta-water to hydrogen peroxide solution, when it is precipitated in the crystalline condition as BaO_2 · ❋ Various (N/A)

Barium bromide is prepared by saturating baryta-water or by decomposing barium carbonate with hydrobromic acid. ❋ Various (N/A)

Ba (C.O_3) _2 · H_2O, and begins to decompose on being heated to 250° C. Barium iodate, Ba (IO_3) _2, is obtained by the action of excess of iodic acid on hot caustic baryta solution or by adding sodium iodate to barium chloride solution. ❋ Various (N/A)

By using sulphate of baryta, ultramarine, oxide of chrome, etc., mixed with silicate of potash, fast colors are obtained similar to the semi-transparent colors of painted windows. ❋ Various (N/A)