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氧化钡

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Aluminum nitrate enneahydrate and barium hydroxide octahydrate are considered as potential phase change materials for energy storage.

用热敏电阻作加热元件和测温元件,首次测定了适合用作相变储能材料的九水合硝酸铝、八水合氢氧化钡导热系数的测定在10℃~80℃温度范围的导热系数,其实验值的不准确度分别为2.8%和3.2%。

Analytical methods such as exploration and confirmation, another long-term production company also eight water barium hydroxide, sodium bisulfate, etc., and annual distribution of various chemical raw materials, product quality reliable, reputable!

分析方法的探索和确认等,另外公司还长期生产八水氢氧化钡,硫酸氢钠等产品,并且常年经销各种化工原料,产品质量可靠,信誉良好!

On the basis of an analysis of several steps in synthesizing manganese iso-octoate ,a kind of paint siccative,the one-step direct synthesis method is put forward,in which barium hydroxide is used to replace sodium hydroxide,and all the materials are at once added in the same reaction process.

对漆料催干剂异辛酸锰的多步合成条件进行了分析研究,提出了用既是沉淀剂又是皂化剂的氢氧化钡代替氢氧化钠,同时投料,同时反应,一步直接合成目标产品的合成路线。

The results show that the castor oil with barium hydroxide as catalyst in the transesterification reaction in the appropriate conditions: methanol to oil molar ratio of 6:1, 10:1, catalyst amount, reaction time 90 min

结果表明,蓖麻油在以氢氧化钡为催化剂的酯交换反应中适宜条件为:醇油摩尔比6:1,催化剂量10:1,反应时间90 min 不要翻译软件的!追加50!

Barium hydroxide Series is the Shanxi quality products,"99 international scientific and technological achievements chemical Expo seminars and product promotion," won the Gold Cup, the company was awarded Shanxi Shanxi Province,"STF" is ISO9001: 2000 quality management system certification enterprises, and companies in a decade was "contract trustworthiness Enterprise" honor.

氧化钡系列产品是山西省优质产品,"99国际化学科技成果博览暨产品推广研讨会"上荣获金杯,公司被山西省授予"山西省科技型中小企业",是ISO9001:2000质量管理体系认证企业,公司连续十年获得"重合同守信用企业"荣誉。

The results show that the appropriate conditions of castor oil with barium hydroxide as catalyst in transesterification reaction are: the molar ratio of methanol to oil is 6:1, castor oil to catalyst is 10:1, reaction time 90 min, the yield is 98.20%, the castor oil conversion rate is 75.13%.

结果表明,蓖麻油在以氢氧化钡为催化剂的酯交换反应中适宜条件为:醇油摩尔比6:1,蓖麻油与催化剂摩尔比10:1,反应时间90 min,生物柴油收率98.20%,蓖麻油转化率为75.13%。

Boron- and Silicone-Containing Phenolic Resin was synthesized by using barium hydroxide and zinc acetate composite catalyst. The structure of BSPR was characterized by FT-IR.

采用氢氧化钡和乙酸锌为催化剂合成了含硼和硅的酚醛树脂 BSP,用 FT- IR对其结构进行了分析,用 TGA和氧指数仪对树脂的耐热性和阻燃性进行了测试。

During the courseof several prior studies of anesthetic breakdown, we noted that barium hydroxide lime, but not sodalime, turns yellow upon desiccation.

我们在麻醉药分解的一些早期研究过程中,注意到氢氧化钡石灰干燥后会变黄,而钠石灰不会。

Blood samples from 23 Huacaya alpacas ,3 males and 20 females ,were used to study chromosome karyotype ,so as to provide some effective cytogenetics basis for the selectioiymprovement by crossing and disease diagnosis of alpacas ,and genetic mechanisms of sex determination. Peripheral blood lymphocyte culture was used to prepare chromosome. Methods of trypsase-EDTA and BSG (Barium hydroxide / Saline / Giemsa)were used for G-banding and C-banding respectively . The results showed as follows:Firstly , the number of diploid chromosomes was in the alpacas 2n=74,with the karyotype 74, XY and 74, XX for males and females respectively.

为了从选种、杂交改良、疾病诊断以及性别决定的遗传机制等方面为羊驼的繁育与推广提供更为有效的细胞遗传学资料,本试验采用外周血淋巴细胞培养法制备染色体,分析了23只胡阿基亚型羊驼(Huacaya alpaca,雌20只,雄3只)的染色体及其核型,并通过BSG法(Barium hydroxide/Saline/Giemsa,氢氧化钡-盐溶液-吉姆萨,也即Sumner BSG法)与胰酶-EDTA法分别对羊驼的C-分带和G-分带进行分析,结果表明:(1)羊驼二倍体染色体数目为2n=74,雄性羊驼核型为74,XY;雌性羊驼核型为74,XX。

A method for determination of basic nitrogen-containing compounds in mainstream smoke was established. In the condition of basic substance barium hydroxide powder and extractant chloroform, 18 basic nitrogen-containing compounds were analyzed by gas chromatography-selective ion monitored-mass spectrometry, such as pyridine, 2-methylpyridine, 2-methylpyrazine, quinoline and indole, etc.

在氢氧化钡碱性环境中,以三氯甲烷为萃取剂,采用气相色谱-选择离子监测-质谱法测定吡啶、2-甲基吡啶、2-甲基吡嗪、喹啉、吲哚等18种碱性含氮化合物。

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