sodium-hypochlorite and sodium-sulfate

sodium-hypochlorite has been researched along with sodium-sulfate* in 2 studies

Other Studies

2 other study(ies) available for sodium-hypochlorite and sodium-sulfate

Article	Year
A comparative study on toxicity identification of industrial effluents using Daphnia magna. Bulletin of environmental contamination and toxicology, 2011, Volume: 87, Issue:3 In this study, acute toxicity monitoring and toxicity identification evaluation procedures were applied to identify causative toxicants in industrial effluents. Effluents from a metal plating factory and a rubber products factory were acutely toxic toward Daphnia magna and the toxicity varied over different sampling events (2.9-5.9 and 1.7-7.6 TU, respectively). For the rubber products effluent, it was confirmed that zinc (5.65-13.18 mg L(-1)) was found to be a major cause of toxicity, which is likely originated from zinc 2-mercaptobenzothiazole and zinc diethyldithiocarbamate used as vulcanization accelerators. For the metal plating effluent, it appeared that the presence of high concentrations of Cl(-) and SO(4)(2-) (8,539-11,400 and 3,588-4,850 mg L(-1), respectively) caused the observed toxicity. These toxicants likely originated from sodium bisulfate (NaHSO(3)) and sodium hypochlorite (NaOCl) used as reducing and oxidizing agents. Though copper was found to be present in levels much higher than the EC(50) (50% effective concentration) value, this was not attributable to the toxicity of metal plating effluent likely due to complexation with dissolved organic matter. Topics: Animals; Daphnia; Electroplating; Environmental Monitoring; Industrial Waste; Industry; Risk Assessment; Rubber; Sodium Hypochlorite; Sulfates; Toxicity Tests, Acute; Water Pollutants, Chemical	2011
Factors affecting dimensional instability of alginate impressions during immersion in the fixing and disinfectant solutions. Dental materials journal, 1998, Volume: 17, Issue:4 To clarify the factors determining the dimensional stability of alginate impressions during immersion in disinfectant and fixing solution, the weight change of impressions in solutions of glutaraldehyde (GA), NaClO, Na2SO4, K2SO4, CaCl2, and ZnSO4 was measured. In the nonelectrolytic solution, GA, the weight decreased in proportion to concentration, possibly due to the gradient of osmotic pressure between the impression and solution. In monovalent metallic salt solutions the weight change decreased with increased concentration. Especially at lower concentrations the rate of weight loss was high. A chemical action of the solution might also be involved, in addition to the osmotic pressure difference. The weight loss in divalent metallic salt solutions was greater than in monovalent solutions, implicating crosslinking reactions between the impression and solution. Topics: Alginates; Calcium Chloride; Dental Disinfectants; Dental Impression Materials; Gels; Glutaral; Osmolar Concentration; Sodium Hypochlorite; Solutions; Sulfates; Viscosity; Zinc Sulfate	1998

Article

Year

A comparative study on toxicity identification of industrial effluents using Daphnia magna.

Bulletin of environmental contamination and toxicology, 2011, Volume: 87, Issue:3

In this study, acute toxicity monitoring and toxicity identification evaluation procedures were applied to identify causative toxicants in industrial effluents. Effluents from a metal plating factory and a rubber products factory were acutely toxic toward Daphnia magna and the toxicity varied over different sampling events (2.9-5.9 and 1.7-7.6 TU, respectively). For the rubber products effluent, it was confirmed that zinc (5.65-13.18 mg L(-1)) was found to be a major cause of toxicity, which is likely originated from zinc 2-mercaptobenzothiazole and zinc diethyldithiocarbamate used as vulcanization accelerators. For the metal plating effluent, it appeared that the presence of high concentrations of Cl(-) and SO(4)(2-) (8,539-11,400 and 3,588-4,850 mg L(-1), respectively) caused the observed toxicity. These toxicants likely originated from sodium bisulfate (NaHSO(3)) and sodium hypochlorite (NaOCl) used as reducing and oxidizing agents. Though copper was found to be present in levels much higher than the EC(50) (50% effective concentration) value, this was not attributable to the toxicity of metal plating effluent likely due to complexation with dissolved organic matter.

Topics: Animals; Daphnia; Electroplating; Environmental Monitoring; Industrial Waste; Industry; Risk Assessment; Rubber; Sodium Hypochlorite; Sulfates; Toxicity Tests, Acute; Water Pollutants, Chemical

2011

Factors affecting dimensional instability of alginate impressions during immersion in the fixing and disinfectant solutions.

Dental materials journal, 1998, Volume: 17, Issue:4

To clarify the factors determining the dimensional stability of alginate impressions during immersion in disinfectant and fixing solution, the weight change of impressions in solutions of glutaraldehyde (GA), NaClO, Na2SO4, K2SO4, CaCl2, and ZnSO4 was measured. In the nonelectrolytic solution, GA, the weight decreased in proportion to concentration, possibly due to the gradient of osmotic pressure between the impression and solution. In monovalent metallic salt solutions the weight change decreased with increased concentration. Especially at lower concentrations the rate of weight loss was high. A chemical action of the solution might also be involved, in addition to the osmotic pressure difference. The weight loss in divalent metallic salt solutions was greater than in monovalent solutions, implicating crosslinking reactions between the impression and solution.

Topics: Alginates; Calcium Chloride; Dental Disinfectants; Dental Impression Materials; Gels; Glutaral; Osmolar Concentration; Sodium Hypochlorite; Solutions; Sulfates; Viscosity; Zinc Sulfate

1998