Sodium chlorate

About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.

Process and device for generating chlorine dioxide for the disinfection of water

Abstract: A process and a device (1, 1') for generating chlorine dioxide for the disinfection of water are presented. The process comprises the steps of providing a cartridge (2) having a first inlet (7) and an outlet (8), the cartridge (2) in terms of flow being filled with sodium chlorate (9) between the first inlet (7) and the outlet (8), introducing a stream of an acid through the first inlet (7) into the cartridge (2), wherein the acid is reacting with the sodium chlorate (9) to at least chlorine dioxide and water, wherein the water and at least one part of the not reacted sodium chlorate (9) are forming an aqueous sodium chlorate solution and wherein the chlorine dioxide is forming a gaseous phase above the aqueous sodium chlorate solution, taking out through the outlet (8) a gaseous stream of the chlorine dioxide from the gaseous phase, and providing the gaseous stream of the chlorine dioxide to be introduced into the water to be disinfected.

Fire Hazards in the Use of Oxidizing Agents as Herbicides

Abstract: The combustibility of organic matter-sodium chlorate mixtures in various proportions has been tested at different relative humidities. It was found that mixtures containing more than 10% of sodium chlorate are sufficiently combustible to be hazardous at all relative humidities below 75% but are non-hazardous at higher humidities. Data were obtained showing the minimum moisture content required for protecting such mixtures and this information may be used to calculate the approximate amount of any water-absorbing chemical that has to be added to sodium chlorate to render it safe. Admixture of calcium chloride or magnesium chloride with the sodium chlorate renders the mixture safe when these protecting salts form one-half and one-third respectively of the resulting herbicide. Judging from the chlorate content the above sodium chlorate-magnesium chloride mixture would be the most effective "safe" herbicide of those tested, but it would be about only half as toxic as pure sodium chlorate. Several other salts ...

Method for preparing sodium hydroxide

Abstract: The invention discloses a method for preparing sodium hydroxide. The method comprises the steps that S1, a refined saturated sodium chloride solution is added into a preheater to be preheated, wherein the preheating temperature is 47 to 63 DEG C; S2, the preheated saturated sodium chloride solution is transferred into an anode chamber of an electrolytic bath, the power is turned on for energization, when the current of a circuit reaches 5.3 KA, acid is added into the anode chamber, and the pH value of a cathode chamber is maintained at 2 to 3; S3, the temperature of the electrolytic bath is increased to 62 to 73 DEG C, and heat preservation energization reaction is carried out; S4, air exhaust treatment is carried out on the anode chamber and the cathode chamber, and pressure of the anode chamber and the cathode chamber is maintained at 47.35*10 Pa to 53.41*10 Pa; and S5, a part of a sodium hydroxide solution obtained from the side surface of the cathode chamber flows back to the cathode chamber, hydrogen is generated above an electrode of the cathode chamber, and chlorine is generated above an electrode of the anode chamber. According to the saturated sodium chlorate electrolysis manner, gases adhering to the surfaces of the electrodes are reduced, the conductive ability of an entire electrolytic system is improved, and the yield of sodium hydroxide is greatly improved.

Composition for producting chlorine dioside

Abstract: PURPOSE: A chlorine dioxide generation composite is provided to prevent the explosiveness accident generated among the manufacture, the circulation, or the keeping by blocking the chemical reaction of the acidic additive and oxide-based additive fundamentally, and secure the stability and to be added to induce the generation of chlorine dioxide which can prevent constitutional change. CONSTITUTION: The chlorine dioxide generation composite includes: an acidic additive formed in the powder form which is more than one selected from the citric acid, the sodium bisulfate, oxalic acid, vitamin C, magnesium sulfate, sodium sulfate and calcium chloride; and an oxide-based additive formed in the powder form which is more than one selected from the sodium chlorite, sodium chlorate, sodium dichloroisocyanurate, trichloride isocyanuric acid sodium, sodium bromide and sodium hydrogen carbonate. The acidic additive includes the solid citric acid of 70~80 weight% and 5~15 weight% magnesium sulfate and 10~20 weight% calciumsulfate. The oxide-based additive includes sodium solid chlorite of 50~60 weight% , 15~25 weight% sodium chlorate, and 10~20 weight% dichlorination isocyanic acid sodium and 1~10 weight% sodium hydrogen carbonate. The composition rate of the oxide-based additive and acidic additive is 10~60 : 40~90.