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You will see that as the potassium hisses and the flame burns round it, they will make waves which will travel all over the water to the edge of the basin,, and you can imagine how in the same way waves travel over the ether from the sun to us.
He went upstairs, carrying the lamp, and opened the door of his quarters. Instantly he recognized the faint, sickly odour of hydrocyanide of potassium, and remembered that he had left the bottle with the solution on his table that afternoon in his hurry. Then he looked down and saw a white face upon the floor, and the flowered bodice and smart skirt of the peasant girl.
Potassium permanganate oxidizes ferrous salts in cold, acid solution promptly and completely to the ferric condition, while in hot acid solution it also enters into a definite reaction with oxalic acid, by which the latter is oxidized to carbon dioxide and water.
I filled our largest billycan, holding about a gallon, slung it over the fire and added, as the wood burnt down, charcoal, till the top was covered to a depth of two inches. With the charcoal there was, of course, a little ash containing bi-carbonate of potassium. The effect was marvellous.
Of incised wounds an elliptical cicatrix is typical, linear being chiefly found between the fingers and toes. By way of disguise the hair may be dyed black with lead acetate or nitrate of silver; detected by allowing the hair to grow, or by steeping some of it in dilute nitric acid, and testing with iodide of potassium for lead, and hydrochloric acid for silver.
Sodium is called natrium in Latin, and Na is the symbol used in English to be in harmony with all other languages, for practically all use the same chemical symbols. Sodium and potassium are very similar elements in some respects, and in the free state they are very peculiar, apparently taking fire when thrown into water. Chlorin in the free state is a poisonous gas.
From the acid solution, hydrogen sulphide precipitates copper, lead, and mercury, dark; arsenic, antimony, and tin, yellowish. If no precipitate, add ammonia and ammonium sulphide, iron, black, zinc, white, chromium, green, manganese, pink. The residue of the material after digestion with hydrochloric acid and potassium chlorate may have to be examined for silver, lead, and barium.
A careful consideration of the trustworthy data clearly reveals the fact that potassium is very abundant in normal soils, while phosphorus is relatively very deficient; and, all things considered, calcium and probably magnesium is of much greater significance than potassium, from the standpoint of the maintenance of usable plant food in the soil.
Muller presently discovered that bichromate of potassium in solution makes the best of fluids for the preliminary preservation and hardening of the tissues. Stilling, in 1842, perfected the method by introducing the custom of cutting a series of consecutive sections of the same tissue, in order to trace nerve tracts and establish spacial relations.
I don't mind being annoyed myself, but I really feel I must protect Mr. Boltwood." "What can I do?" "My dear sir, since you brought him here " It was the potassium cyanide and cracked ice and carpet tacks and TNT and castor oil in Jeff's "My dear sir" that did it. Milt discovered himself on his feet, bawling, "I am not your dear sir!
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