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氯化亚锡

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2 The analysis step by 25.0mL sample lixivium, moved in the direction of arsenic in the bottle, plus 10 ml of hydrochloric acid and 10 ml of potassium iodide solution and 5 drop acid stannochlor solution, shake the place 10min, together with 2 g of arsenic-free zinc metal, immediately mounted a good lead acetate paper turns red cotton and mercury bromide from log that arsenic tube placed in the 25-38, f μh of the dark side, remove the test strip and standard mercury bromide a color not deeper than standard.

7.2 分析步骤取25.0mL样品浸泡液,移入测砷瓶中,加5mL盐酸、5mL碘化钾溶液及5滴酸性氯化亚锡溶液,摇匀后放置10min,加2g无砷金属锌,立即将已装好乙酸铅棉花及溴化汞试纸的测砷管装上,放置于25~30℃的暗处1h,取出溴化汞试纸和标准比较,其色斑不得深于标准。

SnO2/kaolin composite was prepared from SnCl2 and kaolin as raw materials by alcoholysis and ammonia.

氯化亚锡和高岭土为原料,通过醇解,氨解反应,制备了纳米SnO2/高岭土复合材料。

Study of Ge and ascorbic acid, stannous chloride mixtures of color characteristics.

研究了Ge与抗坏血酸、氯化亚锡混合体系的显色反应特性。

The instrumental parameters and the conditions of measurement such as the concentration of acid and tin dichloride were investigated in detail.

指出了载气流速、酸浓度和氯化亚锡浓度等因素对检测结果的影响,并对各种影响因素进行优化。

The study indicated that, with SnCl22H2O and TSA as the catalyst, the comparatively appropriate reaction conditions were as follows: the catalyst content was 0.5% to OLLA, polymerized at 180℃ for lob under a system vacuum of 0.98 MPa.

研究表明,较为适宜的工艺条件为:以二水合氯化亚锡(SnCl22H2O)和对甲基苯磺酸为催化剂,且SnCl22H2O相对于乳酸预聚体的质量比为0.5%,真空度-0.98MPa,温度180℃,反应时间10h。

The Effects of SnCl2/naphthalene Disulphonic Acid on the Microstructure of Polymers Prepared from D, L-lactic Acid

CEPS 思博网--文章书目;-1页数:5 需求点数:20 电子全文:请登入。篇名氯化亚锡/萘二磺酸对D, L-乳酸聚合物微结构的影响

A series of light-weighted metal coated functional composites have been fabricated by electroless metal plating on activated ultrafine particles, with nickel or copper as the shell, ultrafine particles as the core templates, such as alumina, titania, ferriferous oxide, natural pollen, hollow microspheres.

结合分子自组装技术在硅片表面制备了密堆积的胶体钯纳米薄膜,并首次提出了一种无需氯化亚锡敏化、基于分子自组装膜化学吸附胶体钯纳米微粒的活化方法,成功地引发了金属铜或镍在金属与非金属表面的无电子沉积,制备了一系列金属包覆非金属粉末的轻质超细核壳结构功能材料。

Methods: 2ethyl aniline was used as starting material of the synthesis and was processed by acetic anhydride acylation, strong nitric acid nitraction at low temperature, and desacyl synthesis to produce 2ethyl5nitro aniline. The product was then synthesized to 3methyl6nitro1Hindazole by using ringclosing reaction in the presence of NaNO2, and then ethylated to obtain 2,3diethyl6 nitro2Hindazole. The latter compound was then reduced by SnCl2/Hcl to get target compound 2,3diethyl6nitro2Hindazole.

以2乙基苯胺为原料经醋酐酰化、浓硝酸低温硝化及去酰基保护合成2乙基5硝基苯胺,后用亚硝酸钠关环得3甲基6硝基1H吲唑,经硫酸二甲酯甲基化得2,3二甲基6硝基2H吲唑,最后用氯化亚锡将其还原得到目标产物,通过1H NMR确定结构与目标产物一致。

Methods: 2-ethyl aniline was used as starting material of the synthesis and was processed by acetic anhydride acylation, strong nitric acid nitraction at low temperature, and desacyl synthesis to produce 2-ethyl-5-nitro aniline. The product was then synthesized to 3-methyl-6-nitro-lH-indazole by using ring-closing reaction in the presence of NaNO2, and then ethylated to obtain 2, 3-diethyl-6- nitro-2H-indazole. The latter compound was then reduced by SnC12/Hcl to get target compound 2, 3-diethyl-6-nitro-2H-indazole.

以2-乙基苯胺为原料经醋酐酰化、浓硝酸低温硝化及去酰基保护合成2-乙基-5-硝基苯胺,后用亚硝酸钠关环得3-甲基-6-硝基-1H-吲唑,经硫酸二甲酯甲基化得2,3-二甲基-6-硝基-2H-吲唑,最后用氯化亚锡将其还原得到目标产物,通过1HNMR确定结构与目标产物一致。

White discharge printing disperse dye discharge agent stannous chloride worked tin PET fibre

拔染印花;分散染料;拔染剂;氯化亚锡;加工锡;聚对苯二甲酸乙二酯纤维

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