Carbonate of potash

Ten grams of hydroxylamine hydrochloride are dissolved in 25 c.c. of water 10 grams of carbonate of potash, separately dissolved in 25 c.c. of water, are then added and the mixture filtered. With this solution 10 grams of the oil are thoroughly shaken for two hours at 15° to 18° C. The oil is then separated, dried with anhydrous sodium sulphate, and acetyl-ated with twice its volume of acetic. anhydride and one-fifth of its weight of anhydrous sodium acetate for two hours under a reflux condenser. The oil is washed, dried, and neutralised, and a weighed quantity (about 2 grams) saponified with alcoholic potash in the usual manner. 

Philadelphia, Pa, 1821, by triturating in a warm mortac 3 parts by wt of nitre, two of carbonate of potash and one of flower of sulfur. Its effects, when fused in a ladle and then set on fire, were very great. The whole of the melted material exploded with an intolerable noise, and the ladle disfigured, as if. it had received a strong blow downwards. 

By the previously melting together of the nitre and carbonate of potash, a more intimate union of these substances was effected than could possibly be made by mechanical means, or by the slight melting which was admissible in the after process and by the slight melting of the whole upon a thick iron plate, I was able to conduct the business with facility and safety. 

Synonyms Carbonate of potash, Pearl ash, Potash, Salt of tartar, Salt of wormwood, Subcarbonate of potash. 

Philadelphia, Pa, 1821, by triturating in a warm mortac 3 parts by wt of nitre, two of carbonate of potash and one of flower of sulfur. Its effects, when fused in a ladle and then set on fire, were very great. The whole of the melted material exploded with an intolerable noise, and the ladle disfigured, as if it had received a strong blow downwards, it was three times quicker dian common BkPdr A similar powder was manufd by S, Guthrie, Jr and sold in 1930 s in this country. He proposed, however, another powder, which he claimed to be superior to the above mixture. For its prepn were melted together 2 pts of nitre with 1 pt of K carbonate and, when the mass cooled, adding to 4)4 ps of it 1 pc of sulfur. This pdr was claimed to be no less than 8)4 times quicker than the best common BkPdr, More details are in Ref Ref Davis (1943), 51... 

Chemically pure carbonate of potash is best prepared by the ignition of pure bicarbonate (see below) in iron or (better) in silver or platinum vessels or else by the calcination of pure bitartrate (see TABTaaic Acu>). The iatlec operation furnishes an intimate mixture of the carbonate with charcoal, from which tho carbonate ia extracted by lixiviation with water and filtration. The filtrate is evaporated to dryness (in iron or platinum) and the residue fully dehydrated by gentle ignition. Tho salt is thus obtained as a white porous mass, fusible at a red heat (836 C., Carndlcy) into a colourless liquid, which freezes into a while opaque piass. The dry salt ia very hygroscopic it deliquesces into an oily solution oleum tartar ) in ordinary air. 100 parts of water dissolve—... 

The ordinary cyanide of potassium of trade is not strictly that at all, but at best a mixture of the real salt with cyanate. It is produced by fusing a mixture of eight ports of ar.hvdyous prossiate end throe puts of anhydrous carbonate of potash, allowing the reaction... 

FulmiAating Powder. Powder separately 3 ports nitre, 2 parts dry (sec JVo. 2065) carbonate of potash, and 1 fidwers of sulphur mix them together carefully. If 20... 

Nialk. [Occidental], TM for chlorine, caustic soda, caustic potash, carbonate of potash, paradi-chlorobenzene, and trichloroethylene. 

Take tluree parts by weight of nitre, two of dry carbonate of potash, and one of sulphur. Dry thoroughly and then grind them separately to a fine powder then mix them carefully with a paper knife or bone spatula. 

Melt together in a crucible fifteen parts of sand, ten parts of carbonate of potash and one part of ch.ar-coal,... 

Nitrate of Potassa. Called al.so nitre and saltpetre. This salt is spontaneously geuerated in the soil, owing to the action of e atmosphere, and crystamzes upon its sor-face in various parts of the world, especially in the Bast Indies. It is also produced artificially by exposing a mixture of calcareous soil and animal matter to the atmosphere, when nitrate of lime is slowly formed, and is extracted by lixiviation. The liquid is then decomposed by adding carbonate of potash, by which carbonate of lime is precipitated and nitrate of potash remains in solution. 

Tartrate of Potasaa. Dissolve 8 ounces carbonate of potash in 2 quarts distilled water whilst boiling hot, add gradually 1 pound, more or less, of bitartrate of potassa (cream of tartar) in fine powder, until the solution is neutralized, or ceases to change the color of either blue or reddened litmus paper. Filter through muslin, and evaporate until a pellicle forms on tho surface then set it aside to crystallize. After 12 hours, collect the crystals, dry them on bibulous paper, and keep preserved from the air. 

Hare s Pyrophorus. Lampblack, 3 parts burnt alum, 4 ports carbonate of potash, 8 parts as above. 

Pancoaatt s Styptic. Take carbonate of potash, I drachm costilo soap, 2 drachms alcohol, 4 ounces. Mix. This styptic has been found preferable to tho persulphate of iron in many of the minor cases of hemorrhage, inasmuch as it leaves the sorfaco of the stump in a hcalthjr condiUon, and does not produce the thick incrustation so often objectionable after tho application of tho iron. 

To BemtTve Birth-marks. Mix together, with frequent agitation. 1 part pure carbonate of potash, 4 parts rose-water, 2 parte Hoffmonn e Life Bofeom (aeo No. 5112),... 

Carbonate of potash Carbonic acid, dipotassium salt Caswell No. 685 CCRIS 7320 Dipotassium carbonate EINECS 209-529-3 EPA... 

Potassium carbonate (poe-TAS-ee-yum KAR-bun-ate) is also known as potash, pearl ash, salt of tartar, carbonate of potash, and salt of wormwood. It is a white, translucent, odorless, granular powder or crystalline material that tends to absorb water from the air. As it does, it is converted into the sesquihydrate ( sesqui = one-and-a-half) with the formula KjCOj i.sHjO. That formula means that three molecules of potassium carbonate share two molecules of water among them. 

Operation lasts ten hours and a final slag is obtained by the addition of 3 40 kilos, of carbonate of potash, 2-60 kilos, of carbonate of soda, 1 Mlo. of raw and 6 kilos, calcined crude r ulus (liquated sulphide of antimony), 12 kilos, of the same slag from previous operations. The impurities of refined antimony are —... 

If now the free A be removed from the mixture, the free C, being unresisted, at last effects a complete separation of A. The removal of the free A is effected either when that body assumes the solid form by virtue of its great cohesion, or when it takes the form of gas in consequence of its feeble cohesive power, or of the application of heat. The precipitation of an insoluble oxide by a soluble alkali is an example of the former the formation of glass by the fusion of silicic acid with carbonate of potash is an illustration of the latter case. Similar cases are of constant occurrence. 

Silicic acid may be obtained in a state of purity from any siliceous sand by fusing it with three or four parts of carbonate of potash, dissolving the fused mass in water, adding hydrochloric acid, which separates the silica as a jelly, which is a hydrate of the acid, and evaporating the whole to dryness. Water removes from the dry mass all soluble chlorides, and leaves the silica, which, when dried, is a snow-white pow der, insoluble in water, and all acids except the hydrofluoric acid. It dissolves in caustic or even carbonated alkalies with the aid of heat. 

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