硫代硫酸钠

Sodium thiosulfate and carbon disulfide were used as sulfur sources in water and absolute alcohol systems, respectively.

在水溶液体系和乙醇溶液体系中，于常温常压下不加入任何催化剂，用γ射线辐照技术可以成功制备出纳米ZnS晶体，其中硫代硫酸钠和二硫化碳分别为上述两体系的硫源。

The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

The process improvement of flaky sodium hydrosulfide production;2. The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

Conceal disturbing elements like iron,copper,lead with hydrogen fluoride amine-EDTA,add the potassium iodide to separate iodine, and take starch as indicator,titrate with sodium hyposulfite.

试样以王水分解、泡塑富集分离金，硫脲解脱，以硝酸-硫酸破坏硫脲，用氟化氢胺-EDTA掩蔽铁、铜、铅等干扰元素，加碘化钾使之析出碘，以淀粉为指示剂，用硫代硫酸钠进行滴定。

Binary mixture system made of sodium thiosulfate pentahydrate and sodium sulfate hydrate was studied using DSC method.

运用DSC热分析方法，研究了五水硫代硫酸钠与硫酸钠二元体系的相变温度和相变焓Tm=45。

If the specific surface area (0.3391 m2/g) of non-modified tea extracted residual was set as 1, the specific surface area of 9 adsorbents, modified with optimized condition, will be 24.7 thiocarbamide plus phosphorylation (1, 12.2 phosphorylation (1, 6.7, 6.5 phosphorylation (2, 6.1 (sodium thiosulfate modification), 5.9 formaldehyde (1, 5.8 formaldehyde (2, 5.4, and 4.9.

设未经修饰过茶叶渣比表面积(0.3391 m2/g)之相对比值为1，其余九种化学修饰化法制备之吸附剂比表面积相对比值分别为硫脲加磷酸化修饰处理法24.7，磷酸化修饰处理法 12.2，磷酸化修饰处理法 6.7，硫脲提升纤维素架桥作用6.5，硫代硫酸钠修饰处理法6.1，甲醛修饰处理法 5.9，甲醛修饰处理法 5.8，醋酸修饰处理法5.4，柠檬酸修饰处理法4.9。

To the separatory funnel in 10 ml acetate buffer and dispensable 1 ml of sodium thiosulfate solution, blending, followed by a second all-Canadian 10.0mL tetrachlorocarbon dithizone-0.01g/L solution, vibrating 2min, standing out carbon tetrachloride layer to 1 cm chromatometry Cup, zero-zero, adjusting to 520nm wavelength measuring the absorbance at, draw a comparison between the quantitative standard curve.

向各分液漏斗内加5mL乙酸盐缓冲液及1mL硫代硫酸钠溶液，混匀后再各加10.0mL二硫腙－四氯化碳溶液(0.01g/L)，振摇2min，静置分层，分出四氯化碳层于1cm比色杯中，以零管调节零点，于520nm波长处测吸光度，绘制标准曲线比较定量。

Bunte salt was first prepared by α-furfuryl chloride and sodium thiosulfate. Then under the reaction of Bunte salt with 2-methyl-3-furanthiol in the presence of sodium hydroxide, furfuryl 2-methyl-3-furyl disulfide was prepared.

首先以α-糠基氯和硫代硫酸钠反应制备Bunte盐，然后Bunte盐与2-甲基－3-呋喃硫醇在碱性条件下反应合成了产品糠基2-甲基－3-呋喃基二硫醚。

The research and status of non-cyanide electroless gold plating using sodium sulfite and/or hyposulphite as complexing agent are described in detail.

详细阐述以亚硫酸钠及硫代硫酸钠为配位剂的无氰化学镀金的研究及发展现状。

On the condition of the existence of the buffer solution of ammonium acetate (PH5-6) and ammonium thiocyanate, quantitatively reduce Cu2+ into Cu+ by using sodium thiosulphate .

本文在PH5-6的乙酸铵缓冲溶液及硫氰酸铵存在下，用硫代硫酸钠定量还原Cu~(2+)为Cu~+，Cu~+与SCN~-结合，形成稳定的硫氰酸亚铜白色沉淀，反应终点可由全自动电位滴定仪确定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐