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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
TL;DR: Fours strains of nitrate reducing bacteria isolated from soil were studied for their behavior towards chlorate: some resisted to chlorate or were different as to gas formation, according to the type of strain.
Abstract: Fours strains of nitrate reducing bacteria isolated from soil were studied for their behavior towards chlorate. They are facultative anaerobes, except for Bacillus megatherium (which is a strict aerobe) and they possess a nitrate reductase A. The growth of three strains of bacteria (Klebsiella pneumoniae, B. licheniformis and Micromonospora globosa) was slowed by sodium chlorate at a concentration of 0.06 to 0.1% while the other strain (B. megatherium) tolerated the CIO3- well. The delay of bacterial growth due to chlorate lasts for a certain period, after which the bacteria multiply again. The lag phase is due to small quantities of chlorite produced from the chlorate; the growth phase which follows is provoked by the multiplication of chlorate resistant mutants, most often nitrate reductase-negative and sometimes positive. Some reverse mutants nitrate reductase positive of K. pneumoniae no longer had the same characteristics as the wild strain: some resisted to chlorate or were different as to gas formation. The reduction of nitrate to ammonia by these bacteria is diminished in the presence of chlorate: the reduction of nitrate to nitrite was inhibited or not inhibited according to the type of strain. The bacteria broke down the chlorate partially or completely, according to the strains and the sustrates.

1 citations

Patent
15 Jul 2015
TL;DR: In this paper, the authors proposed an antifouling paint for a ship, which comprises: a resin compound; a solvent; and a liquid anti-ouling agent, wherein the liquid ant-ouming agent is formed by mixing 10 to 200 parts by weight of a mixture which is produced by mixing one or more compounds selected from the group consisting of manganese dioxide (MnO_2), methyl cellosolve, sodium chlorate (NaClO-2), sodium perchlorate (NClO_4), sodium oxide (NaO_3
Abstract: The present invention relates to an antifouling paint for a ship, which comprises: a resin compound; a solvent; and a liquid antifouling agent, wherein the liquid antifouling agent is formed by mixing 10 to 200 parts by weight of a mixture which is produced by mixing one or more compounds selected from the group consisting of manganese dioxide (MnO_2), methyl cellosolve, sodium chlorate (NaClO_2), sodium perchlorate (NaClO_4), sodium oxide (NaO_2), sodium chlorite (NaCIO_2), sodium hypochlorous acid (NaCIO_3), tetraethylorthosilicate (TEOS), metal salt of carbonic acid, and sodium hydroxide (NaOH) with inorganic salt which is metal salt of carbonic acid, 10 to 100 parts by weight of sodium hydroxide (NaOH) with respect to 100 parts by weight of the mixture, and 10 to 100 parts by weight of inorganic mineral with respect to 100 parts by weight of the mixture. According to the present invention, the liquid antifouling agent is very eco-friendly since cuprous oxide (Cu_2O) which is an environmental toxic material causing the contamination and destruction of an aquatic ecosystem is not added thereto, In addition, a service life of a product can be extended by enhancing protection performance of the antifouling paint through the inorganic salt and inorganic mineral added into the liquid antifouling agent.

1 citations

Journal Article
TL;DR: In this article, the thermal decomposition of sodium chlorate with oxygen evolution in the NaClO 3 -CaO-Mg and NaCl O 3-CaO 2 -Mg systems was studied and the combustibility of mixtures with calcium peroxide and magnesium was determined.
Abstract: Thermal decomposition of sodium chlorate with oxygen evolution in the NaClO 3 -CaO-Mg and NaClO 3 -CaO 2 -Mg systems was studied. NaClO 3 decomposition in a ternary system occurs at a lower temperature than in binary systemsof magnesium or of calcium oxides. Complete and concurrent NaClO 3 decomposition and metal oxidation occur for a certain molar proportion of the components of the system and within a narrow range of temperatures lying ca. 150°C below the temperature at which magnesium melts and oxidizes in air. The combustibility of sodium chlorate mixtures with calcium peroxide and magnesium was determined as a function of the ratio of the components. The low-magnesium boundary of the field of combustible compositions lies at 2.3 wt %.

1 citations

Book ChapterDOI
01 Jan 1992
TL;DR: Sodium dichromate is used in the electrochemical manufacture of sodium chlorate to both buffer the electrolyte and to minimize undesirable cathodic reactions as discussed by the authors, and it is used as a buffer in the production process.
Abstract: Sodium dichromate is used in the electrochemical manufacture of sodium chlorate to both buffer the electrolyte and to minimize undesirable cathodic reactions.

1 citations

Patent
31 Aug 2018
TL;DR: In this article, a simple and low-cost joint denitration process is described, which has the characteristics of simple process, low cost, circular economy, no introducing of new chemical impurities, effective removing of impurities of the sodium chlorate mother liquor and high additional value.
Abstract: The invention discloses a sodium chlorate and chlor-alkali joint denitration process. The sodium chlorate and chlor-alkali joint denitration process comprises the following steps that (1), mixing is carried out, specifically, sodium chlorate mother liquid and light salt brine are mixed proportionally to enable the concentration of sodium chlorate to be less than 200g/L, and mixed liquor is obtained; (2), pretreatment is carried out, specifically, the mixed liquor is pretreated with crude filtration, pH value adjustment, dechlorination and fine filtration, and pretreated liquid is obtained; (3), concentration is carried out, specifically, the pretreated liquid is introduced into a nano-filtration membrane concentration system through a booster pump, and permeate liquid and a concentrated solution are obtained; (4), refrigeration and denitration are carried out, specifically, the concentrated solution is crystallized in a refrigeration system to obtain mirabilite and crystallization mother liquor; and (5), recovery is carried out, specifically, the crystallization mother liquor is mixed with the sodium chlorate mother liquid to be used for the step of mixing again. The sodium chlorate and chlor-alkali joint denitration process has the characteristics of simple process, low cost, circular economy, no introducing of new chemical impurities, effective removing of impurities of the sodium chlorate mother liquor and high additional value.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20237
202215
202110
202014
201925
201836