Topic
Sodium chlorate
About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.
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Journal Article•
6 citations
TL;DR: In this article, Fourier transform infrared spectra of aqueous sodium chlorate, perchlorate, and dichromate solutions were obtained using multivariate spectral reconstruction and spectral subtraction.
Abstract: Infrared spectra of single and mixed aqueous sodium chlorate, sodium perchlorate and sodium dichromate solutions were recorded using Fourier transform infrared spectrometry. With the aid of spectral subtraction and multivariate spectral reconstruction, clear spectra of these salts, in the spectral region 900–1250 cm–1, were obtained. The features of these spectra include maximum absorption bands at 973 cm–1, 1110 cm–1 and 950 cm–1 due to chlorate, perchlorate and dichromate, respectively. In mixed solutions these salts could be detected at concentrations as low as 0.64 g l–1. The linear dynamic range was found to be 0.2–63.8 g l–1, 0–73.47 g l–1 and 0–149 g l–1 for chlorate, perchlorate and dichromate, respectively. The results obtained in the analysis of industrial samples compared well with certified values. Interference effects of different inorganic salts were studied. Sodium salts of bromide, iodate, carbonate, chloride, nitrate, and hydrogencarbonate were found to have no significant interference. Standard deviations of industrial sample determinations were found to be in the range of 2.5–4.10%.
6 citations
TL;DR: This study presents an adaptive neuro-fuzzy inference system model for predicting the pH of sodium chlorate cell from real plant data and shows good agreement between the measured pH and estimated pH confirms that the model can be further used to design the controller.
Abstract: Sodium chlorate production is a highly energy-intensive electro-chemical process. The current efficiency is as low as 66.66% if the pH of the process is not controlled. Hence for energy-efficient s...
6 citations
Patent•
06 Aug 1959
TL;DR: Chlorate candles may be produced by mixing the constituents with water, pressing the composition into a mould and drying or by melting the alkali metal chlorate, dispersing the other materials uniformly through the melt and casting the resultant suspension into a mold as discussed by the authors.
Abstract: A composition which upon burning liberates oxygen comprises a consolidated body containing 70-90% by weight of an alkali metal chlorate, the remainder comprising barium peroxide and steel wool clippings. The steel wool clippings may be steel wool having a diameter of 0.002-0.01 inch cut into 1/16 inch- 3/8 inch length clippings and the chlorate used may be lithium, sodium or potassium chlorate. The composition preferably contains 83-89% by weight of sodium chlorate, 4-7% of steel wool clippings, 2-6% of barium peroxide and 0-4% of hydrogen reduced iron powder. Chlorate candles may be produced by mixing the constituents with water, pressing the composition into a mould and drying or by melting the alkali metal chlorate, dispersing the other materials uniformly through the melt and casting the resultant suspension into a mould. The candle may be disposed in a closed canister provided with an oxygen outlet and means for igniting the candle.
6 citations
Patent•
23 Jun 2010
TL;DR: In this paper, a method for producing high purity chlorine dioxide with high purity by adopting a combined reducing agent was proposed, which comprises the following steps of: injecting concentrated sulfuric acid and a sodium chlorate solution into a generator to form a reacting mother solution; maintaining the reaction mother solution to a certain acidity, temperature and the content of sodium chlorates; then adding a combined reduction agent formed by mixing methanol, hydrogen peroxide, hydrochloric acid or sodium chloride to react for generating chlorine dioxide gas and a byproduct namely acid mirabilite; cooling and then
Abstract: The invention relates to a method for producing chlorine dioxide with high purity by adopting a combined reducing agent. The method comprises the following steps of: injecting concentrated sulfuric acid and a sodium chlorate solution into a generator to form a reacting mother solution; maintaining the reacting mother solution to a certain acidity, temperature and the content of sodium chlorate; then adding a combined reducing agent formed by mixing methanol, hydrogen peroxide, hydrochloric acid or sodium chlorate to react for generating chlorine dioxide gas and a byproduct namely acid mirabilite; cooling and then absorbing the chlorine dioxide gas by using low temperature frozen water to obtain a water solution of chlorine dioxide; and simultaneously recovering the byproduct. The conversion rate of the chlorine dioxide produced by the method is improved by 3-6 percent as comparison with that of the chlorine dioxide produced by a single reducing agent, the stability of chemical reaction is improved, the production cost is reduced, and the chlorine amount in the chlorine dioxide solution and tail gas exhausted from a chlorine dioxide absorbing tower is remarkably reduced.
6 citations