Y: Right, but the thing is, when the bismuth combines with the trace amounts of sulfur in your saliva and in your gastrointestinal tract, it reacts to form a black substance called bismuth sulfide.

The bismuth sulfide nanoparticle and self-assembly system have more excellent optoelectronic and catalytic properties, which have a broad application prospects in the light-emitting materials, nonlinear optical materials, photocatalytic materials.

纳米Bi2S3及其组装体系具有优异的光电和催化性能，在发光材料、非线性光学材料、光催化材料等方面有着广泛的应用前景。

The results show that well crystallized bismuth sulfide nanorods can be obtained by refluxing at 160 ℃ in ionic liquid.

结果表明，在含有乙基硫酸根离子的1甲基3乙基咪唑盐的离子液中，160℃下回流反应，可以得到结晶良好的硫化铋纳米棒，并对其形成机理进行了探讨。

Bismuth sulfide nanorods were synthesized in ionic liquid using bismuth nitrate and thiourea as precursor.

采用硝酸铋和硫脲为先驱原料，以离子液为反应介质，合成了硫化铋单晶纳米棒。

And bismuth sulfide can also temporarily darken the stool.

而且，硫化铋还会使排泄物变黑。

This method for bismuth sulfide can make accurate controllability on shape and size feasible.

这种方法在对硫化铋的形貌尺寸有着精确可控的特点。

Extraction separation of bismuth with ethanol-ammonium sulfate-potassium iodide system

乙醇-硫酸铵-碘化钾体系萃取分离Bi（Ⅲ）的新方法

It was used to determine the content of bismuth in manganese sulfate.

测定了硫酸锰试剂中铋的含量。

The effect of bismuth sulfate content in plating bath and current density on current efficiency, bismuth content and morphology of obtained tin-bismuth alloy was studied.

研究了镀液中硫酸铋含量和电流密度对镀层铋含量、电流效率及镀层表面形貌的影响。

The amount of bismuth citrate in ranitidine capsules was determined by HPLC.

用高效液相色谱法测定了枸橼酸铋雷尼替丁胶囊的含量，并与络合滴定法的测定结果进行了比较。

Determination of ranitidine bismuth citrate in its capsules by UV spectrophotometry

枸橼酸铋雷尼替丁胶囊有效成份的紫外分光光度法的测定

Determination of Impurity Elements in Bismuth Citrate by ICP-AES

ICP-AES法测定枸橼酸铋制剂中的杂质元素

A Clinical Study of Ranitidine Bismuth Citrate in the Treatment of Peptic Ulcer

国产枸橼酸铋雷尼替丁治疗消化性溃疡的临床研究

Study on Chemical Structure and Spectra of Double Salt of Ranitidine Bismuth Citrate

枸橼酸铋雷尼替丁复盐的化学结构及光谱研究

Components in group A included colloidal bismuth citrate ( Denol, 6-8mg/ kg/ d, bid);

A组用胶体枸橼酸铋6～8mg/（kg·d），每日2次；

Thermal Decomposition Mechanism, Non-isothermal Reaction Kinetics of Bismuth Citrate and Its Catalytic Effect on Combustion of Double-base Propellant

柠檬酸铋的热分解机理、非等温反应动力学及其对双基推进剂燃烧的催化作用

Study on Preparation of Nanometer Bismuth Oxide Powders by Vapor-phase Oxidation

铋蒸气氧化法制备氧化铋纳米粉体的研究

Study on preparation of nanometer bismuth oxide powder

纳米三氧化二铋粉体的制备研究

Bismuth oxide is a advanced functional powder material, having wide application perspectives.

氧化铋是一种先进的功能粉体材料，应用前景广阔。

Preparation of Superfine Bismuth Oxide by High-Speed Shear Reactor

采用高速剪切反应器生产超细氧化铋工艺探讨

Study of a New Manufacturing Process of High Purity Bismuth Oxide

一种制备高纯氧化铋工艺的研究