Sodium
['səʊdɪəm] or ['sodɪəm]
解釋/意思:
(noun.) a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt).
錄入:山姆--From WordNet
解釋/意思:
(n.) A common metallic element of the alkali group, in nature always occuring combined, as in common salt, in albite, etc. It is isolated as a soft, waxy, white, unstable metal, so readily oxidized that it combines violently with water, and to be preserved must be kept under petroleum or some similar liquid. Sodium is used combined in many salts, in the free state as a reducer, and as a means of obtaining other metals (as magnesium and aluminium) is an important commercial product. Symbol Na (Natrium). Atomic weight 23. Specific gravity 0.97.
欧文整理
例句/造句/用法:
- Muriate of ammonium 5 parts}| n t | Nitrate of potassium 5 parts}| y u | | r | Snow or pounded ice 12 parts}| e | Muriate of sodium 5 parts}| to -25° | . 威廉K.大衛. 智者、化學家和偉大醫生的秘密.
- In the following year Davy reported other chemical changes produced by electricity; he had succeeded in decomposing the fixed alkalis and disc overing the elements potassium and sodium. 李貝. 西洋科學史.
- An enormous quantity of sodium carbonate, or soda, as it is usually called, is needed in the manufacture of glass, soap, bleaching powders, and other commercial products. 伯莎M.克拉克. 科學通論.
- The production of caustic soda, sodium carbonate, and chlorine by the electrolysis of brine, is carried on upon a large scale, and will probably supersede all other methods. Edward W. Byrn. 十九世紀發明進展.
- Chemically it is known as sodium chloride. 佚名. 神奇的知識之書.
- Kirchhoff and Bunsen that the eighteen-millionth part of a grain of sodium may be detected. Edward W. Byrn. 十九世紀發明進展.
- Of all the vast group of salts, the most abundant as well as the most important is common salt, known technically as sodium chloride because of its two constituents, sodium and chlorine. 伯莎M.克拉克. 科學通論.
- NaCl is the formula for sodium chloride, which is the chemical name of common salt. 伯莎M.克拉克. 科學通論.
- Muriate of sodium 1 part }| | | t | Snow or pounded ice 5 parts}| F e | Muriate of sodium 2 parts}| r m to -12° | . 威廉K.大衛. 智者、化學家和偉大醫生的秘密.
- The trough battery was used by Sir Humphry Davy in his series of great experiments--1806-1808--in which he isolated the metallic bases, calcium, sodium, potassium, etc. 威廉·亨利·杜利特. 世紀發明.
- All metallic sodium and potassium are now obtained by electrolysis of fused hydroxides or chlorides (Pats. Edward W. Byrn. 十九世紀發明進展.
- Muriate of ammonium 1 part }| o p | | m e | Snow or pounded ice 24 parts}| r | Muriate of sodium 10 parts}| a a to -18° | . 威廉K.大衛. 智者、化學家和偉大醫生的秘密.
- The addition of soda, or sodium carbonate to the water will usually produce the desired effect. 伯莎M.克拉克. 科學通論.
- He scrutinized the crystals of sodium ammonium racemate obtained from aqueous solution. 李貝. 西洋科學史.
- Chlorine is never free in nature, but is found in combination with other substances, as, for example, in combination with sodium in salt, or with hydrogen in hydrochloric acid. 伯莎M.克拉克. 科學通論.
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