| 词汇 | nitric-acid |
| 释义 | nitric acid noun[ U ] uk /ˌnaɪ.trɪk ˈæs.ɪd/ us /ˌnaɪ.trɪk ˈæs.ɪd/ a clear liquid that is used in making many chemicals, especially explosives and fertilizers (= substances that help plants grow)硝酸 Chemicals, chemical compounds & gases acetic acid acetone acrolein acrylamide activated charcoal adenine agglomerate ethyl alcohol glyphosate H2O HCFC HFC hyaluronic acid hydrochloric acid laughing gas limescale meths oxyacetylene prussic acid tartaric acid nitric acid | American Dictionarynitric acid noun[ U ] us/ˈnɑɪ·trɪk ˈæs·ɪd/ chemistry a clear, colorless liquid that is used in making many chemicals, especially explosives and fertilizers (= substances that help plants to grow) Examples of nitric acidnitric acid Samples of 10-50 g of coal were macerated in nitricacid and then cleared in potassium hydroxide. For instance, it is said that nitricacid consists of hydrogen, nitrogen, and oxygen. The segments of the discs are created by mechanical scratching, or alternatively by etching the upper electrode with nitricacid. This sampling method allows the determination of the nitricacid amount which is present only in the aerosol phase. The fractions were dissolved in hydrofluoric and nitricacid. Sodium content was analyzed using emission spectroscopy after hydrolysis with nitricacid. Beakers, pre-treated in nitricacid to remove metal contamination, were used to collect the ash. Both zircons and monazites were then cleaned thoroughly with dilute nitricacid, followed by ionized water and acetone rinses. Nitricacid is similar, but it vaporises more easily and was perhaps the basis of the cloud in the area. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There were no studies specifically with nitricacid aerosols. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 This showed that the material was fuming nitricacid, a rocket motor propellant, and not chemical warfare agent. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I say this because there is the acid rain problem and desulphurisation will not prevent the equally noxious nitrous oxides which produce nitricacid. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In the atmosphere, nitrogen oxides become transformed into gaseous or liquid forms of nitricacid, adding to the acidification of lakes and rivers and the formation of acid rain. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 This test is carried out by adding concentrated nitricacid to the substance being tested, and then heating the mixture. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, the nomenclature extends to inorganic oxo acids, e.g. phosphoric acid, sulfuric acid, nitricacid and boric acid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of nitric acid These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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