| 词汇 | caustic-soda |
| 释义 | caustic soda noun[ U ] uk /ˌkɔː.stɪk ˈsəʊ.də/ us /ˌkɑː.stɪk ˈsoʊ.də/ a caustic chemical used in industrial processes such as soap and paper production, and in powerful cleaning substances苛性钠，烧碱 Synonym sodium hydroxidespecialized 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 Borax is a mild alkaline body, and as a detergent is probably equivalent to a slight excess of caustic soda. Next add caustic soda solution until the colour of the solution changes from yellow to red. Permanent hardness in water, due to the presence of gypsum or sulphate of lime in solution, may be remedied by addition of caustic soda. The bicarbonate of sodium settles out at once as insoluble crystals, easily removed, marketable at once as such, or easily converted into simple carbonate of sodium, and further into caustic soda, as in the ordinary "old" process. The residue boiled with caustic soda would lose all its wool, which is soluble in hot strong caustic alkali. Examples of caustic sodacaustic soda Pollution in my own area is usually caused by causticsoda, which is used by many industries. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 One of the first stages—it has probably changed now, because this was 15 years ago—was the placing or dropping of sheets of wood pulp into a causticsoda bath. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Rather than give up causticsoda and synthetic dye, dyers ignored the bans and continued to use both items surreptitiously. Women responded by cutting prices and adopting new technologies (causticsoda and synthetic indigo) to reduce production costs. In order to appreciate the significance of causticsoda, it is important to understand the dyeing process. The most far-reaching initiative was the incorporation of new technologies, causticsoda and synthetic dyes, which had a dramatic impact on the dyeing industry. In addition to allowing dyers to circumvent the obstacles to obtaining quality ingredients, caustic soda and synthetic dye helped them to increase the volume of production. Causticsoda was also an important addition to the dyeing process because the quality of the available indigo had declined, and it had become increasingly difficult to get ashes. Too much causticsoda damaged the cloths. Presumably the chemical treatment of straw with causticsoda is referred to. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Is not a great deal of the wasted causticsoda valuable; and is it not required for many products needed now in medicine? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The arrangements made under it do not affect the supply position of causticsoda required for war purposes. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Threatened with closure are altogether four plants producing chlorine and causticsoda. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 They fail to place fail-safe systems round the causticsoda tanks, somebody leaves the valve on and as a result thousands of fish die. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 This is also true of export demands for soda ash, though some increase in exports of causticsoda might be possible if supplies were available. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 See all examples of caustic soda 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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