STABILIZATION OF SODIUM DITHIONITE WITH DIVERSE ADDITIVES
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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The invention relates to a method for reducing or preventing the decomposition of a composition Z， containing Z1 a salt of dithionous acid in an amount in the range of 50 to 100 wt% and possibly Z2 an additive selected from the group consisting of alkali metal carbonate， alkaline-earth metal carbonate， alkali metal or alkaline-earth metal tripolyphosphate (Na 5P3O10)， alkali metal or alkaline-earth metal sulfite， disulfite， or sulfate， dextrose， and complexing agent in a total amount in the range of 0.0001 to 40 wt%， wherein the components Z1 and， if applicable， Z2 in a solid and/or dry state or in a state of suspension in a solvent are brought into contact with at least one of the following compounds V in a solid and/or dry state or in a state of suspension in a solvent， wherein the compounds V are selected from the group consisting of: (a) oxides of the alkali metals lithium， sodium， potassium， rubidium， cesium， or magnesium， (b) sodium tetrahydroborate (NaBH4)， (c) water-free copper(II) sulfate (Cu(SO4))， phosphorus pentoxide， and (d) basic amino acids arginine， lysine， histidine， characterized in that the solvent for Z1， Z2 if applicable， and V is practically free of water. The invention relates to a method for reducing or preventing the decomposition of a composition Z， containing Z1 a salt of dithionous acid in an amount in the range of 50 to 100 wt% and possibly Z2 an additive selected from the group consisting of alkali metal carbonate， alkaline-earth metal carbonate， alkali metal or alkaline-earth metal tripolyphosphate (Na5P3O10)， alkali metal or alkaline-earth metal sulfite， disulfite， or sulfate， dextrose， and complexing agent in a total amount in the range of 0.0001 to 40 wt%， wherein the components Z1 and， if applicable， Z2 in a solid and/or dry state or in a state of suspension in a solvent are brought into contact with at least one of the following compounds V in a solid and/or dry state or in a state of suspension in a solvent， wherein the compounds V are selected from the group consisting of: (a) oxides of the alkali metals lithium， sodium， potassium， rubidium， cesium， or magnesium， (b) sodium tetrahydroborate (NaBH4)， (c) water-free copper(II) sulfate (Cu(SO4))， phosphorus pentoxide， and (d) basic amino acids arginine， lysine， histidine， characterized in that the solvent for Z1， Z2 if applicable， and V is practically free of water.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
