查询词典 potassium acid carbonate

The blue-violet range, while ascorbic acid, dehydroascorbic acid and hexacyanoferrate are

抗坏血酸和氰合铁酸根是无色的。因此对[Fe6]3-进光谱测定时它们是会造成干扰的。

Based on the higher alcohols and lactic acid metabolism theory, a method was developed to low higher alcohols capability Saccharomyces cerevisiae strains by screening high lactic acid dehydrogenization enzyme activity in this study.

本研究对Y1110菌株及其出发菌株、突变等株16株不同来源的酵母菌株进行全基因组RAPD分析，建立并优化了酵母RAPD扩增体系和分型系统，从20条随机引物中筛选出了3条具有较好的扩增多态性，共扩增出34条RAPD谱带，多态性为85.3％；获得了稳定清晰的RAPD指纹图谱。

Diglycol diacetate had been obtained with sulfuric acid or toluene-p-sulfonic acid as catalyst in lab.

研究了在实验室条件下，以硫酸、对甲苯磺酸为催化剂合成二甘醇二醋酸酯的方法。

Originally techniques dropped formaldehyde into the mixture of phosphorous acid and monosodium of imino diacetic acid in high temperature.

原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应，考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得，直接将三氯化磷用于双甘膦的合成，不仅可以简化操作过程，而且对于降低生产成本和能耗有明显意义。

Trisodium salt of N,N,N'-ethylenediamine triacetic acid was prepared by hydrolyzing 2-oxo-1, 4-piperazine diacetic acid(3-KP) in the strong base solution. Then it was combined with lauroyl chloride, hexadecanoyl chloride and benzoyl chloride respectively. N-lauroyl-ED3A and N-hexadecanoyl-ED3A were prepared in succsess. The molecular structure of N-lauroyl-ED3A was characterized by ~1HNMR and ~(13)CNMR. The molecular structure of N-hexadecanoyl-ED3A was characterized by 1HNMR.

将3-KP 在强碱性条件下水解，生成ED3ANa3 的水溶液，然后分别与月桂酰氯、棕榈酰氯和苯甲酰氯反应，成功制得N—月桂酰基ED3A 和N—棕榈酰基ED3A，并用~1HNMR 和~(13)CNMR 对N—月桂酰基ED3A 的分子结构进行了表征，用1HNMR 对N—棕榈酰基ED3A 的分子结构进行了表征。

Inthis papor,we synthesize and symbolize three sulphide bicarboxylate ligands such as 2.5-bis-1.3,4-thiadiazole;2,2 -(o-phenylenedimethylenethio) diacetic acid(L11); 2,2 -(m-phenylenedimethylenethio) diacetic acid.

本文合成和表征了2，2′-(1，3，4-噻二唑-2，5-二硫基)二乙酸、2，2′-邻苯二甲硫基二乙酸和2，2′-间苯二甲硫基二乙酸三个含硫二元羧酸配体。

A diacid triglyceride containing two molecules of palmitic acid and one of stearic acid could be named dipalmitostearin or steartodipalmtin.

含有二分子棕榈酸和一分子硬脂酸的二酸式甘油三酸脂可命名为二棕榈酰硬脂酰甘油酯或硬脂酰二棕榈酰甘油酯。

The components of the hydrochloric acid and the fire_retardant - an organic diacid in the waste water produced by production of the fire_retardant were analysed rapidly by acid base potentiometer.

采用酸碱电位滴定法快速简便地测定了阻燃剂生产中产生的含有盐酸和阻燃剂———一种有机二元酸的含量。

OH radicals produced by ultrasound in aqueous solution attack phenolic cycle at adjacent or para position of the hydroxyl on phenol so that phenol is changed into small organic molecules such as muconic acid, maleic acid and ethane diacid. These small organic molecules will be oxidized to form carbon dioxide and water by.

苯酚超声降解的作用机理是，超声空化在水溶液中产生的·OH自由基进攻苯酚苯环上羟基的邻位或对位而使苯环断裂生成己二烯酸、顺式丁烯二酸和乙二酸小分子有机物而使苯酚得以降解，这些小分子有机物在·OH自由基的进一步作用下最终被氧化成CO〓和H〓O。

The effects of temperature, dialogite-to-sulfuric acid ratio, and solid-to-liquid ratio on leaching of dialogite by sulfuric acid were researched in the leaching experiment of ores from Hubei.

通过对湖北矿的浸取试验研究，讨论了温度、矿酸比、固液比对菱锰矿硫酸浸取的影响，优化了浸取条件，并确定温度对浸取的影响最为显著，使浸取率可以达到99。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"