sodium carbonate 中文意思是什麼

sodium carbonate 解釋
純堿。
【化學】碳酸鈉。

  • sodium : n. 鈉。
  • carbonate : vt. 1. 使與碳酸化合；給…充碳酸氣。2. 使碳化，使化合成碳酸鹽[脂]；把…燒成炭。3. 使活潑[活躍]。n. 碳酸鹽[脂]；黑金剛石。
  1. Hard water which can be softened by adding sodium carbonate is called permanent hard water.

    經過加入碳酸鈉能被軟化的硬水，稱為永硬水。
  2. The shellac erythrophyll is from the parasitism the resinous substance shellac which in places the such as india, thailand, burma, china leguminosae, on the mulberry branch plant s lac insect secretes with the thin sodium carbonate watery solution extract fine but, assumes the reddish purple color either the bright red powder or the liquid, by shellac acid a and shellac acid b, c, e and so on is composed, serves as the edible erythrophyll, when the acidity assumes the orange, is extremely stable

    紫膠紅紫膠紅色素是從寄生於印度、泰國、緬甸、中國等地的豆科、桑科植物上的紫膠蟲所分泌的樹脂狀物質紫膠用稀碳酸鈉水溶液萃取精緻而得，呈紅紫色或鮮紅色粉末或液體，由紫膠酸a和紫膠酸b 、 c 、 e等組成，用作食用紅色素，酸性時呈橙色，非常穩定。
  3. In comparison with sol - gel system catalyzed by potassium carbonate and sodium carbonate, the gel time was markedly shortened and the densities of the prepared carbon aerogels were obviously reduced

    相對以k _ 2co _ 3和na _ 2co _ 3為催化劑的凝膠體系，凝膠化時間大大縮短，所得氣凝膠密度降低。
  4. Soda ash sodium carbonate

    堿灰碳酸鈉
  5. Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.

    例如碳酸鈉和鄰苯二酸氫鉀，分別用來標定酸和堿溶液。
  6. The manufacture of sodium alkalis, that is sodium carbonate

    生產堿性納，即
  7. Hygienic standard for sodium carbonate in the air of workplace

    車間空氣中碳酸鈉衛生標準
  8. Phytopharmaceutical products. sodium carbonate. requirements

    植物藥物學產品.碳酸鈉要求
  9. The crude sodium carbonate ash obtained from these plants

    蘇打灰從這些植物中獲得的粗碳酸鈉灰
  10. Chemical reagents - sodium carbonate, anhydrous

    化學試劑無水碳酸鈉
  11. Working chemical - sodium carbonate anhydrous

    工作基準試劑
  12. Primary chemical - sodium carbonate, anhydrous

    第一基準試劑
  13. Sodium carbonate for industrial use - part 1 : determination of bulk density

    工業用碳酸鈉.第1部分:體密度的測定
  14. It is stirred with 10%sodium carbonate solution(50ml)and then with water (50ml), after which it solidifies.

    與10碳酸鈉溶液（50毫升）混合攪拌，然後再用50毫升水混合攪拌，從而析出固體。
  15. Photography - processing chemicals - specification for anhydrous sodium carbonate and sodium carbonate monohydrate

    攝影技術.洗片化學製品.無水碳酸鈉和碳酸鈉一水化物規范
  16. Sodium carbonate for industrial use - part 3 : determination of total soluble alkalinity - section 1 : titrimetric method

    工業用碳酸鈉.第3部分:總溶物堿性的測定.第1節:滴定分析法
  17. This paper designs molecular structure of organic water - repellent admixture. we choose carboxylic acid that possesses amphiphilic molecular structure and sodium carbonate and potassium hydroxide as important raw materials. they carry through soaps turns reaction to synthesize polycarboxylic acid type waterproofing agent

    本文通過對有機質防水劑分子結構設計，選擇具有兩親結構的羧酸（酸a 、酸b ） 、無水碳酸鈉、氫氧化鉀為主要原材料，通過皂化反應，合成多元羧酸系防水劑。
  18. Sodium carbonate for industrial use. determination of sodium hydrogen carbonate. volumetric method

    工業用碳酸鈉.碳酸氫鈉含量的測定.容量法
  19. Sodium hydrogen carbonate for industrial use. determination of sodium carbonate content. titrimetric method

    工業用碳酸氫鈉.碳酸鈉含量的測定.滴定法
  20. Food additive - sodium carbonate

    食品添加劑碳酸鈉
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