Chlorine dioxide (CIO2) off-gassed from an aqueous solution and reacted incrementally with potassium iodide solutions (sinks). After 30 min, 45% of the initial dose was detected as chlorite ion in the sink, whereas 35% of the initial dose was still in the source. Aqueous solutions of CIO...
题目 16 What happens when chlorine is bubbled through aqueous potassium iodide?C A Chlorine is oxidised to chlorate(V) ions. B Chlorine is oxidised to chloride ions. C lodide ions are oxidised to iodine. D There is no observable reaction. 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
29. Chlorine is passed into a colourless aqueous solution of a compound Z. At first, a brown colour is seen and then a black precipitate appears. What could Z be? C A ammoni a B iron(III) sulphate C potassium iodide D sodium hydroxide 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
The concentrations of chlorine and chlorine dioxide in a gas stream may be determined by passing a known quantity of gas into an acidic potassium iodide solution with subsequent analysis of that solution for iodine by thiosulfate titration and chloride by ion chromatography.doi:10.1080/00032718108081396...
Normally, chlorine is the first bleaching stage, where unbleached pulp is treated with elemental chlorine, Cl2, that is either gaseous or in solution, at a pH of 0.5–1.5. Bleaching is carried out with a pulp consistency of 3%–4%, ambient temperature as the reaction is quick, and a rete...
(He) purge into a potassium iodide solution, and the amount of dissolved chlorine was then measured by Iodometric titration31. Prior to the stability tests, the system was purged with a pure He stream for two hours. Near unity faradaic efficiency was observed for H2production for all samples....
potassium iodide (ki) sodium silicate ((na 2 o) x ·sio 2 ) tetrachloroethylene (c 2 cl 4 ) chemistry related links benzene uses bleaching powder 20 examples of chemical changes acetate formula wittig reaction calcium carbide formula canal rays chemical thermodynamics van t hoff factor what is...
solution and DPD test solution is added to the sample, a small amount of potassium iodide is added, the reaction will be limited to the free chlorine and the chloroamine in the chlorine; Before the sample is added with the buffer value and DPD, a small amount of potassium iodide is ...
The DPD reagent reacts rapidly with the residual chlorine in the water to form a red solution. Under the catalysis of potassium iodide, the combined residual chlorine can also develop color with DPD. Applications It can be used to monitor the resid...
The discharge gas of the reactor was collected by a trap which consisted of an absorption bulb of an aqueous solution of potassium iodide and an absorption bulb of an aqueous solution of caustic soda connected in series. The aqueous solutions were titrated respectively with an aqueous solution of...