| 单词 | thiocyanate |
| 例句 | As another example, the thiocyanate ion, an ion formed from a carbon atom, a nitrogen atom, and a sulfur atom, could have three different molecular structures: NCS–, CNS–, or CSN–. Chemistry 2019-02-14T00:00:00Z Thiocyanate is easier to measure than cyanide, so when the tests pointed to high thiocyanate levels, more blood was sent to a forensic laboratory near Sydney to confirm high levels of cyanide, says Konstantatos. A man who took apricot kernels to beat cancer got cyanide poisoning 2017-09-11T04:00:00Z At 16, he won the national Westinghouse Science Talent Search with a project analyzing how metals bind to thiocyanate. Roger Y. Tsien, chemist who shared Nobel for Alzheimer’s research tool, dies at 64 2016-08-31T04:00:00Z But cobalt thiocyanate also turns blue when it is exposed to more than 80 other compounds, including methadone, certain acne medications and several common household cleaners. How a $2 Roadside Drug Test Sends Innocent People to Jail 2016-07-07T04:00:00Z Early blood pressure therapies included using thiocyanate and ablating parts of the sympathetic nervous system in the chest. Managing Blood Pressure: It’s a Marathon, Not a Sprint 2016-01-11T05:00:00Z Possible Lewis structures and the formal charges for each of the three possible structures for the thiocyanate ion are shown here: Chemistry 2019-02-14T00:00:00Z However, women rarely eat enough of the vegetables for thiocyanate levels from those sources to be concerning, they note. Pregnant women should take iodide supplement: docs 2014-05-26T04:00:00Z For example, when a solution of a ferric salt is added to a solution of potassium thiocyanate, a deep red coloration is produced, owing to the formation of ferric thiocyanate. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Titrate the excess silver with N/10 ammonium or potassium thiocyanate until a permanent light brown color appears. All About Coffee Laboratory experiments have also been carried out on such different nitrogenous substances as ethylamine, thiocyanates, gelatin, urea, asparagin, and albuminoids of milk. Manures and the principles of manuring The addition of a solution of potassium or ammonium thiocyanate to one of silver in nitric acid causes a deposition of silver thiocyanate as a white, curdy precipitate. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes If ferric nitrate is also present, the slightest excess of the thiocyanate over that required to combine with the silver is indicated by the deep red which is characteristic of the thiocyanate test for iron. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes If the ammonium thiocyanate is used, the amount is 76.08 grams. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes From the data obtained, calculate the relation of the thiocyanate solution to the normal. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes From the corrected volume of the thiocyanate solution required, calculate the percentage of silver in the coin. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes |
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