phenolphthalein
英[ˌfiːnɒl'fθæliːn]
美['fiːnɒl'θæliːn]
- n. 酚酞
详细释义
Noun:
-
a laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8
双语例句
- 1. Phenolphthalein diphosphate pyridine salt;
- 酚酞二磷酸酯吡啶盐；
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- 2. Phenolphthalein diphosphate tetrasodium salt hydrate; CAS…
- 询价酚酞二磷酸四钠水合物；
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- 3. Acid calibration potassium hydroxide, to phenolphthalein as indicator.
- 钾标定，以酚酞为指示剂。
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- 4. Phenolphthalein or indicator of such a kind is used as colour indicator.
- 本发明还可加入酚酞或酚酞类酸碱指示剂作显色指示。
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- 5. Phenolphthalein: This chemical is an organic dye that is toxic in large quantities.
- 酚酞：这个化学药品是一个有机染料，大剂量是有毒的。
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- 6. Bromoc-resol Green and Phenolphthalein-Thymolphthalein were selected as indicators.
- 选择溴甲酚绿和酚酞一百里酚酞为指示剂。
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- 7. Soluble in water, its aqueous solution is strongly alkaline, can phenolphthalein red.
- 易溶于水，其水溶液呈强碱性，能使 酚酞变红。
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- 8. It is reacted with phenol to produce phenolphthalein, used as an indicator, a dye, and a pharmaceutical.
- 它与酚反应生产酚酞，可用作指示剂、染料和医药。
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- 9. The causes of producing error results were analyzed at detecting alkaline cell seal characteristics, using phenolphthalein solution.
- 分析了用酚酞试剂检测碱性电池密封性能产生错误结果的原因。
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- 10. The colored solidified alcohol has been prepared by utilizing alcohol, stearic acid, sodium hydroxide, phenolphthalein, copper nitrate and cobalt nitrate.
- 运用酒精、硬脂酸、氢氧化钠、酚酞、硝酸铜、硝酸钴等原料，制备彩色固体酒精。
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- 11. Objective:To set up a method for the detection of the content of phenolphthalein in phenolphthalein tablets and elimination of the foreign matter fluorane and excipients.
- 目的：建立测定酚酞片中酚酞含量的方法，消除杂质荧光母素及辅料的干扰。
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- 12. A kinetic method for the direct determination of CO_2 in gaseous phase is proposed, based on fading the phenolphthalein when CO_2 dissolves in dilute aqueous solution of NaOH.
- 本文基于气相中的二氧化碳在稀氢氧化钠-酚酞溶液中的溶解而使酚酞逐渐褪色的动力学行为提出了一种直接测定气相中微量二氧化碳的动力学分析法。
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- 13. The solubility parameter of phenolphthalein poly (ether sulfone) (PES-C) was determinated by using turbidity titration method, and estimated by using group contribution method.
- 采用浊度滴定法测定和基团贡献法估算了酚酞基聚醚砜的溶解度参数。
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- 14. Shanxi Liuqing Pharmaceutical Co., Ltd is the Largest phenolphthalein manufacturing factory in China. Produce 1000 tons of phenolphthalein, yellow phenolphthalein is 1000 tons per year.
- 山西柳青药业有限公司是中国最大的酚酞产品专业生产厂家，年产酚酞1000吨、黄酚酞1000吨。
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- 15. In order to increase reliability using phenolphthalein solution to detect alkaline cell sealing characteristics, the water in the alcohol was decreased, environment humidity were requisite.
- 为了提高酚酞溶液检测碱性电池密封性能的可靠性，就必须减少配制酚酞试剂酒精中的含水量，同时也必须降低测试环境湿度。
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- 16. In order to increase reliability using phenolphthalein solution to detect alkaline cell sealing characteristics, the water in the alcohol was decreased, environment humidity were requisite.
- 为了提高酚酞溶液检测碱性电池密封性能的可靠性，就必须减少配制酚酞试剂酒精中的含水量，同时也必须降低测试环境湿度。
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- Examples are litmus and phenolphthalein.
例如石蕊和酚酞。 - The paper presents a novel method for the separation and preconcentration of vanadium with microcrystalline phenolphthalein as the sorbent.
建立了以微晶酚酞作为吸附剂分离富集环境水样中痕量钒的新方法。
用作名词 (n.)
用法讲解
- phenolphthalein test 酚酞试验
- phenolphthalein indicator 酚酞指示剂
- phenolphthalein alkalinity 酚酞碱度
- methyl red phenolphthalein 甲基红酚酞
- phenolphthalein test paper 酚酞试纸
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