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Cyanide concentration
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A study of the electrodeposition of silver from 2 different types of electrolytes; (1) neutral pyrophosphatecyanide electrolyte and (2) alkaline high concentrated cyanide electrolyte in the presence of a variety of additives such as 2-mercaptobenzothiazole, potassium selenocyanate, and potassium antimony tartrate was performed. Influence of additives and cyanide concentration on microstructure and kinetics of the cathodic processes were studied.
15p
tudichquannguyet
29-11-2021
12
1
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In this paper, we present the evaluation results of the conversion efficiency of stable cyanide complexes using a specialized distillation system. The experiments show that the optimal distillation time for complexes of [Fe(CN)6]4-and [Fe(CN)6]3-is 60 minutes, conversion efficiencies of [Fe(CN)6]4- and [Fe(CN)6]3- are 100, 0,08 and 84 ± 0,02, respectively, and the average of recovery rate of complexes RTB is 90÷100.
10p
tamynhan9
02-12-2020
5
2
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Cyanide is used to extract gold from gold-bearing ore, resulting in wastewater containing cyanide compounds which is released to a tailing storage facilities (TSF). Hydrogen Cyanide (HCN) is highly volatile and the most toxic form of cyanide. A large gold mine in Phichit Province, Thailand uses cyanide to extract gold from ore, and cyanide contaminated waste product is released into a TSF, which is allowed to have a maximum cyanide concentration of 20 mg/l. There is great concern whether airborne HCN emissions from TSF pose a public health hazard.
8p
caygaocaolon8
07-11-2020
27
2
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The electrolyte solutions, sweep rates, purges time, etc...were researched on the determination of cyanide. Distillation time of 90 minutes was recommended to use; some interferences of other anions including sulphide and sulphite were also investigated. Cyanide content ion of cassava and bamboo shoot has been determined by differential pulse polarography method using the quantitative technique of standard addition. The ranges of cyanide concentration in bamboo shoot were within 0.00045 -0.075 mg/g and from limit of detection to 1.7902 mg/g for cassava.
5p
khidoichuoi
04-03-2020
27
0
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The lugwormArenicola marinainhabits marine sediments in which sulfide concentrations can reach up to 2 mm. Although sulfide is a potent toxin for humans and most animals, because it inhibits mitochondrial cyto-chromec oxidase at micromolar concentrations,A. marinacan use elec-trons from sulfide for mitochondrial ATP production.
9p
media19
06-03-2013
32
2
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The organisation of sewers and systems is closely related to the different types of industry and, as a result, a whole array of configurations exist. In all cases, it is essential to avoid unnecessary dilution during treatment.
91p
real_spamer9x
03-12-2012
84
18
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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Effect of Hyperbaric Oxygen Therapy on whole blood cyanide concentrations in carbon monoxide intoxicated patients from fire accident
6p
toshiba18
31-10-2011
61
2
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Introduction: Determination of methemoglobin (Met-Hb) in blood is important for the diagnosis of poisoning by oxidants, such as nitrite, nitrate, chlorate, chlorite, alkyl nitrites, nitroglycerin, aniline and other compounds. In 1938, Evelyn and Malloy [1] had devised a photoelectric method for determination of Met-Hb in blood. Minor modifications of this method were made by several researchers to increase sensitivity [2–4]. These methods are based on a phenomenon that the absorbance maximum of weakly acidic Met-Hb at 630 nm disappears by addition of cyanide.
17p
bigbaby87
01-09-2010
158
14
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