Sodium chlorate

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

Purifying agent for industrial wastewater

Abstract: The invention discloses a purifying agent for industrial wastewater. The purifying agent is prepared by mixing ferrous sulphate, technical hydrochloric acid, sodium chlorate, sodium carbonate, water and sodium silicate. The invention has the advantages of a reasonable formula, a good purifying effect and low production cost.

Thermal decomposition of NaClO3 in the presence of NiO or NiO mixtures with CaO or Na2O2

Abstract: Sodium chlorate decomposition in the presence of individual NiO or NiO mixed with CaO or Na 2 O 2 has been studied polythermally using DTA and isothermally by tracing the concentration of decomposition products. NaClO 3 decomposition catalyzed by NiO at temperatures of 285-345°C is about 200 times as fast. The process obeys a first-order rate equation. For extents of decomposition a < 0.6, Arrhenius parameters have been calculated: E a = (141.4′5.4) KJ/mol and logA = (10.46′0.5) [min - 1 ]. Addition of NiO mixed with CaO slows down NaClO 3 decomposition, however the rate constant of decomposition remains far higher than in the NaClO 3 -CaO binary system. When an NiO: Na 2 O 2 = 1: 0.5 mixture is added, nickel oxide and sodium peroxide mutually suppress the catalytic activity of each other. The NaClO 3 decomposition rate in this case is about two orders of magnitude lower than the decomposition rate catalyzed by individual NiO or Na 2 O 2 .

The Heats of Solution and Related Thermodynamic Properties of Sodium Chlorate in Water and Water–Dioxane Mixtures

Abstract: The heats of solution of sodium chlorate in water, and in several water-dioxane mixtures, have been determined experimentally at concentrations of salt ranging from 0.01 molal to saturation. For th...

Behaviour of sodium chlorate in different soil types in forest land.

Abstract: 塩素酸ソーダの枯殺力が土壌条件によって異なる原因を明らかにするために, BC, BD, BE, B1C型土壌を対象に, 土壌中の薬剤の消長と各土壌型上に生育するクマイザサの根系の分布状態を調査し, 検討を行った。1) 塩素酸ソーダの土壌中における残効は, B1C型土壌では散布14日後で消失したが, BD, BE型土壌では30日, BC型土壌では60日であり, 除草剤の残留期間は腐植含量が少なく構造深度の浅い土壌で長い傾向が認められた。2) エンバクに対する生長阻害作用を土壌中の移動性を含めて比較すると, BC型土壌で大きく, 以下BD型, BE型, B1C型土壌の順に小さくなる。この傾向は, 林地においてクマイザサを対象に行った施用試験の枯殺結果6)と一致した。3) 各土壌型でクマイザサの根系の垂直分布を調査した結果, A層の薄いBC型土壌で根系の分布深も浅い。一方, BE型, B1C型土壌ではA層は厚く, クマイザサの根系の分布深も深い。一般に塩素酸ソーダの効果は, A層が厚く根系が土壌中深くまで分布する土壌ほど小さい傾向が認められた。