| 单词 | sodium fluoride |
| 例句 | Solid calcium fluoride can also be prepared by the reaction of aqueous solutions of calcium chloride and sodium fluoride, yielding aqueous sodium chloride as the other product. Chemistry 2019-02-14T00:00:00Z The main ingredients in Tom’s of Maine Simply White toothpaste, for instance—including sodium fluoride, hydrated silica, sorbitol and sodium lauryl sulfate—are also in some types of Colgate toothpaste. ‘Natural’ Product Claims Can Be Murky 2016-03-30T04:00:00Z A spokesman said the export licences - granted for potassium fluoride and sodium fluoride meant for use in aluminium shower products and toothpaste - were also revoked after EU sanctions was introduced. 'Sarin chemicals' claim rejected 2013-09-01T20:26:59Z Most salts tend to increase the spacing, but there are a few – sodium fluoride, for example – that decrease the spacing. Osmosis Confusion: 60 Years and Counting 2013-05-01T13:45:00.377Z Sulphurous acid and sulphites are chiefly used in the preservation of thin ales, wine and fruit, and sodium fluoride has been found in butter. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z But the use of sulphites in sausage and chopped meat, the addition of formaldehyde to milk, and of boric acid or sodium fluoride to butter are practices altogether objectionable from the standpoint of public health. Food Poisoning In the authors' experience, however, sodium fluoride appears to have little value as a germicide when added to soap, such soaps being found to rapidly become rancid and change colour. The Handbook of Soap Manufacture In January 2012, we issued licences for sodium fluoride and potassium fluoride. 'Sarin chemicals' claim rejected 2013-09-01T20:26:59Z To remove the last traces of hydrofluoric acid, advantage is taken of the fact that fused sodium fluoride combines with the free acid with great energy to form the double fluoride HF.NaF. Scientific American Supplement, No. 832, December 12, 1891 After traversing the worm condenser, therefore, the fluorine is caused to pass through two platinum tubes filled with fragments of fused sodium fluoride, from which it issues in an almost perfect state of purity. Scientific American Supplement, No. 832, December 12, 1891 |
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