| 单词 | potassium ferrocyanide |
| 例句 | He extensively used potassium ferrocyanide to bleach detail into dark areas. For retiree Jerry Gay, former Seattle Times photographer, it’s a quiet life now 2018-01-20T05:00:00Z He admonished them for sending their spies to a foreign country equipped with “soap made of potassium ferrocyanide or toilet water that contains lead acetate.” Invisible Ink War: How Chemists Revealed Germany’s Secret WW I Writing [Excerpt] 2014-04-05T11:30:00Z After thorough drying for forty-eight hours, there was placed on the surface of each board a few drops of a solution of potassium ferrocyanide. Paint Technology and Tests 2011-09-15T02:00:12.263Z White Gunpowder: a mixture of potassium chlorate, potassium ferrocyanide, and sugar. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z Another mixture is 1.8 part aniline salt, 12 parts potassium ferrocyanide, 200 parts water, 3.5 parts potassium chlorate dissolved in water. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Ammonium chloride in a potassium ferrocyanide solution produces growths shaped like catkins, and the alkaline chlorides tend to produce vermiform growths. The Mechanism of Life Ammonia gives a characteristic blue coloration when added to a solution of a copper salt; potassium ferrocyanide gives a brown precipitate, and, if the solution be very dilute, a brown colour is produced. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" They are soluble in water and give characteristic precipitates with platinic and auric chlorides, and with potassium ferrocyanide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" Titrate the boiling solution with the sodium phosphate till it ceases to give a brown colouration with potassium ferrocyanide. A Text-book of Assaying: For the Use of Those Connected with Mines. A spiral of platinum wire is employed as the cathode, and the presence of the metal confirmed for by dissolving it in a little nitric acid, diluting with water and adding potassium ferrocyanide. Scientific American Supplement, No. 810, July 11, 1891 If the gelatine has been treated with a drop of potassium ferrocyanide solution instead of salicylate of sodium, a few drops of FeSO4 will give a blue pattern. The Mechanism of Life These projects involve items such as gunpowder, acetylene, hydrogen, lead, mercury, sulfuric acid, nitric acid, cadmium, potassium sulfate, potassium cyanide, potassium ferrocyanide, copper sulfate, and hydrochloric acid. The Boy Mechanic: Volume 1 700 Things for Boys to Do They give a characteristic pale red precipitate with sodium pyrophosphate, soluble in an excess of the precipitant; they also form precipitates on the addition of platinic chloride and potassium ferrocyanide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" |
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