Topic
Sodium chlorate
About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, the role of metal fuel in the combustion mechanism of NaClO3 was investigated and thermal analysis was conducted in argon flow for binary NaCl O3/Me mixtures, where Me = Al, Fe, Co, Ni, and Sn.
Abstract: Chemical compositions for emergency oxygen generators typically include sodium chlorate (NaClO3) as the oxygen source, transition metal oxide as catalyst for NaClO3 decomposition, and metal fuel to provide energy for self-sustained combustion. To clarify the role of metal fuel in the combustion mechanism, potential catalytic effects of metals on NaClO3 decomposition are investigated. Thermal analysis was conducted in argon flow for binary NaClO3/Me mixtures, where Me = Al, Fe, Co, Ni, and Sn, as well as in oxygen flow for metal powders alone and mixtures of NaClO3 with Sn and Co. The experiments show that catalytic effects of metals on NaClO3 decomposition range from negligible for Al and Sn, to significant for Co and Ni, while Fe exhibits moderate catalytic activity. Thermodynamic calculations indicate that replacement of Sn with Co or Ni does not significantly alter combustion characteristics, which determine product oxygen flow rate. Replacing Sn with Co or Ni may decrease the number of ingredients in ...
13 citations
TL;DR: In this article, the reduction of CrVO4 3− leads to the formation of a monolayer of CrIII(hydr)oxide, which is then de-hydroxylated.
12 citations
TL;DR: In this article, the velocities of the ultrasonic waves in sodium chlorate crystal, with propagation direction (100) and vibration direction (010) and (001), respectively, are found to be equal to within 0.1%.
Abstract: The velocities of the ultrasonic waves in sodium chlorate crystal, viz., V12 and V13, with propagation direction (100) and vibration direction (010) and (001), respectively, are found to be equal to within 0.1%. This shows that the classical theory of elasticity is adequate to describe the elastic behavior. The elastic constants of this crystal, obtained by the author using the pulse‐echo method, are also reported. The effect of piezoelectricity on the elastic constants of sodium chlorate crystal is shown to be too small, well within the present experimental accuracy.
12 citations
TL;DR: The effects of a 6-h chlorine dioxide sanitation of alfalfa seed on total coliform bacteria, seed germination, and the presence of chlorate and perchlorate residues in seed rinse, seed soak, and alf Alfalfa sprouts was determined.
Abstract: The effects of a 6-h chlorine dioxide sanitation of alfalfa seed (0, 50, 100, and 200 mg/kg seed) on total coliform bacteria, seed germination, and the presence of chlorate and perchlorate residues in seed rinse, seed soak, and alfalfa sprouts was determined. Chlorate residues in 20,000 mg/L calcium hypochlorite, commonly used to disinfect seed, were quantified. Chlorine dioxide treatment reduced (P 0.05) on germination. Dose-dependent sodium chlorate residues were present in seed rinse (4.1 to 31.2 μg/g seed) and soak (0.7 to 8.3 μg/g seed) waters, whereas chlorate residues were absent (LOQ 5 ng/g) in sprouts, except for 2 of 5 replicates from the high chlorine dioxide treatment. Copious chlorate residues were present (168 to 1260 mg/L) in freshly prepared 20,000 mg/L calcium hypochlorite solution, and storage at room temperature increased chlorate residues significantly (P < 0.01).
12 citations
Patent•
22 Feb 1977
TL;DR: In this article, the reaction medium is maintained at its boiling point under sub-mospheric pressure and the resulting steam is used to dilute the chlorine dioxide and chlorine and remove the same from the reaction zone.
Abstract: Chlorine dioxide is produced in a continuous process by reaction of sodium chlorate and hydrochloric acid. The reaction medium is maintained at its boiling point under subatmospheric pressure and the resulting steam is used to dilute the chlorine dioxide and chlorine and remove the same from the reaction zone. Sodium chloride is deposited from the reaction medium in the reaction zone. The mole ratio of chlorate to chloride in the reaction medium, and the temperature of the reaction medium are controlled within narrow limits to provide high efficiency of production of chlorine dioxide.
12 citations