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- pyridine disulfonic acid [化] 吡啶二磺酸
- This method has several advantages: manipulation is simple and safe, and less interference in comparison with phenol disulfonic acid method. 与常用的酚二磺酸比色法相比,该方法具有简便、安全的优点,干扰少、准确度高。
- A sensitive chromogenic reagent,2-(4-chloro-2-phosphophenylazo)-7-(2,4-dichlorophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid(abbreviation:DC-CPA),has been used in the spectrophotometric determination of bismuth. 研究了2-(4-氯-2-膦酸基苯偶氮)-7-(2;4-二氯苯偶氮)-1;8-二羟基-3;6-萘二磺酸(DC-CPA)与铋的显色反应.
- The reduction of 4,4'-dinitrostilbene-2,2'-disulfonic acid (DNS) by zero-valant iron is one of the most widely used methods to produce the intermediate of 4,4'-diaminostilbene-2,2'- disulfonic acid (DSD). 4,4’-二硝基二苯乙烯-2,2’-二磺酸(DNS)的零价铁还原是目前广泛应用于生产精细化工中间体4,4’-二氨基二苯乙烯-2,2’-二磺酸(DSD)的传统方法。
- phenol disulfonic acid spectrophotometry 酚二磺酸分光光度法
- dinitro naphthalene disulfonic acid 二硝基萘二磺酸
- SPADNS sulfo phenyl azo dihydroxy naphthalene disulfonic acid 磺苯基偶氮二羟基萘二磺酸
- spectrophotometric method with phenol disulfonic acid 酚二磺酸光度法
- Keywords diaminostilbene disulfonic acid;leather dye;coupling reaction; 二氨基茋二磺酸;偶联反应;皮革染料;
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- Butadiene vinyl pyridine rubber latex. 丁二烯、乙烯基吡啶经乳液共聚制得的胶乳。
- Pyridine is a colorless chemical liquid. 吡啶是一种无色的化学液体。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She dropped acid in high school. 她高中时代服迷幻药。
- The metal is fretted with the acid. 金属被酸腐蚀。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
