Solubility and Density of Chloric Acid + Sodium Chlorate Solutions

1995 ◽  
Vol 40 (5) ◽  
pp. 1106-1110 ◽  
Author(s):  
Brian Crump ◽  
M. F. Hoq ◽  
Bhart Indu ◽  
W. R. Ernst
Keyword(s):  
Sodium Chlorate ◽  
Chloric Acid

Bactericidal Effect of Sodium Chlorate onEscherichia coliConcentrations in Bovine Ruminal and Fecal ContentsIn Vivo

2002 ◽  
Vol 14 (1) ◽  
Author(s):  
Robin C. Anderson ◽  
Todd R. Callaway ◽  
Timothy J. Anderson ◽  
Leon F. Kubena ◽  
Nancy K. Keith ◽  
...  
Keyword(s):  
Sodium Chlorate ◽  
Bactericidal Effect

Catalytic and inhibiting effects of barium peroxide and hydroxide on the decomposition of sodium chlorate

1995 ◽  
Vol 261 ◽  
pp. 119-124 ◽  
Author(s):  
Yunchang Zhang ◽  
Girish Kshirsagar ◽  
John E. Ellison ◽  
James C. Cannon
Keyword(s):  
Sodium Chlorate ◽  
Barium Peroxide

Sulphated proteoglycan is required for collecting duct growth and branching but not nephron formation during kidney development

Development ◽  
1995 ◽  
Vol 121 (5) ◽  
pp. 1507-1517 ◽  
Author(s):  
J. Davies ◽  
M. Lyon ◽  
J. Gallagher ◽  
D. Garrod
Keyword(s):  
Kidney Development ◽  
Collecting Duct ◽  
Sodium Chlorate ◽  
Ureteric Bud ◽  
Nephron Differentiation ◽  
Bud Growth ◽  
Nephron Development ◽  
Sulphated Glycosaminoglycans ◽  
Sulphated Proteoglycan ◽  
Hepatocyte Growth

Kidney epithelia have separate origins; collecting ducts develop by ureteric bud growth and arborisation, nephrons by induced mesenchyme-epithelium transition. Both express sulphated glycosaminoglycans (GAGs) which are strikingly upregulated during nephron differentiation. However, sodium chlorate, an inhibitor of GAG sulphation, and the GAG-degrading enzymes heparitinase plus chondroitinase, did not prevent nephron development. In contrast, ureteric bud growth and branching were reversibly inhibited by the above reagents, the inhibition correlating quantitatively with sulphated GAG deprivation caused by a range of chlorate concentrations. Growth and branching could be independently restored during GAG deprivation by hepatocyte growth factor and phorbol-12-myristate acetate (PMA) respectively. Together these signalling effectors stimulated both branch initiation and growth. Thus growth and morphogenesis of ureteric bud involve distinct signalling pathways both regulated by GAGs.

Chloric acid(I) affects antioxidant defense of lung epitelial cells

2011 ◽  
Vol 25 (7) ◽  
pp. 1328-1334 ◽  
Author(s):  
A. Robaszkiewicz ◽  
M. Pogorzelska ◽  
G. Bartosz ◽  
M. Soszyński
Keyword(s):  
Antioxidant Defense ◽  
Chloric Acid

Recovery Gemanium from Pulverized Fuel Ash through the Method of H2SO4-NH4F-NaClO3 - Leaching-Tannin Precipitation

2013 ◽  
Vol 669 ◽  
pp. 377-383
Author(s):  
Shi Kun Pu ◽  
Yao Zhong Lan ◽  
Yan Jun Li ◽  
Zhong Hui Zhang
Keyword(s):  
Sulfuric Acid ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Ammonium Fluoride ◽  
Sodium Chlorate ◽  
Sulphuric Acid Solution ◽  
Fuel Ash ◽  
Pulverized Fuel ◽  
Leaching Solution ◽  
Pulverized Fuel Ash

This paper will conduct a systematic study on method of recovering Ge from pulverized fuel ash in Lincang prefecture, Yunnan province. Details are like this, in view of the fact that Ge contained in pulverized fuel ash is wrapped up by a lot of Silica, Cao, magnesium oxide and is difficult to react with hydrochloric acid, so, first, have the pulverized fuel ash grinded to 200 meshes; then, ammonium fluoride should be put into 85-90°Cdilute sulphuric acid solution to produce hydrogen fluoride so as to destroy silicon dioxide and calcium oxide contained in the pulverized fuel ash. Meanwhile, dilute sulphuric acid solution dissolves magnesium oxide, by doing so, Ge will be released to react with sulfuric acid and produce Sulfuric acid Ge, and Ge will go into the solution；as for low state Ge（e.g,GeO,GeS）contained in the pulverized fuel ash which is difficult to be dissolved by sulfuric acid, sodium chlorate will be used as a kind of oxidant to change bivalence Ge into tetravalence Ge, then dissolve it into the solution, after the liquid-solid separation, sulfuric acid leaching solution rich in Ge will be obtained. Then, tannic acid will be used as precipitant to recover Ge from the leaching solution, and Ge concentrate will be produced through distillation and roasting. After this, put Ge concentrate on hydrochloric acid distillation to get germanium tetrachloride, After going through strenuous evaporation, distillation and hydrolysis, germanium dioxide with high purity will be yield. This paper has conducted conditional tests and discussion on the process parameters which will influence recovery Ge from pulverized fuel ash, including the dosage of Sulfuric acid, ammonium fluoride, sodium chlorate ,tannic acid and extraction time to find out the prior controlling condition of Ge recovery，under this prior condition, Ge leaching rate is as high as 84%，and tannic sinking Ge rate is as high as 98%. The pulverized fuel ash, after recovering Ge, can be used to backfill the mine pit, besides, most of the lixivium after recovering Ge can be recycled, and the rest of it will be released after neutralized up to the standard by lime. This process enjoys the following quality: high Ge recovery rate, less time used during the process ,less consumption of auxiliary material, easier to control the process, avoiding the potential pollution on the environment and lower cost involved in it, therefore, which is a kind of efficient and economic process of recovering Ge from pulverized fuel ash.

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