Recommended specifications for analytical reagent chemicals: Barium acetate, borax (sodium borate, Na2B4O710H2O), cadmium sulfate, ferric chloride, ferric nitrate, litmus paper, potassium bisulfate fused

1932 ◽  
Vol 4 (1) ◽  
pp. 154-156 ◽  
Author(s):  
W. D. Collins ◽  
Gregory P. Baxter ◽  
H. V. Farr ◽  
J. V. Freeman ◽  
Joseph. Rosin ◽  
...  
Keyword(s):  
Ferric Chloride ◽  
Sodium Borate ◽  
Ferric Nitrate ◽  
Barium Acetate ◽  
Cadmium Sulfate ◽  
Analytical Reagent ◽  
Litmus Paper

Experimental Study on Preparation and Pb2+ Adsorption Capability of Ferric Salt Modified Sands

2011 ◽  
Vol 130-134 ◽  
pp. 852-855
Author(s):  
Chun Sheng Ding ◽  
Xiao Yan Ma ◽  
Ying Long Zhou ◽  
Ping Ning
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Removal Efficiency ◽  
Specific Surface Area ◽  
Ferric Chloride ◽  
Quartz Sand ◽  
Deposition Process ◽  
Ferric Nitrate ◽  
Ferric Salt ◽  
Adsorption Capability

Ferric salt modified sands were prepared with quartz sand as a carrier and ferric salt coating by the two methods of repeat high-temperature process and repeat alkaline deposition process. The specific surface area of two ferric salt modified sands were detected, and their Pb2+ adsorption capability in different conditions were also described in this paper. The results showed that the specific surface area of ferric chloride and ferric nitrate modified sand was 2.468m2/g and 4.247m2/g respectively, which was 6.910 and 12.612 times more than that of raw quartz sand. In the neutral pH condition, the removal efficiency of Pb2+ by raw quartz sands was approximately 37%, in contrast, the removal efficiency reached 85% by ferric nitrate modified sand and over 90% by ferric chloride modified sand, and it was much higher than that of raw quartz sand.

Ferric Reduction and Oxalate Mineralization with Fered-Fenton Method

2007 ◽  
Vol 10 (2) ◽  
Author(s):  
Cheng-Hong Liu ◽  
Yao-Hui Huang ◽  
Hung-Ta Chen ◽  
Ming-Chun Lu
Keyword(s):  
Stainless Steel ◽  
Oxalic Acid ◽  
Ferric Chloride ◽  
Chloride Solution ◽  
Chloride Concentration ◽  
Ferric Chloride Solution ◽  
Ferric Sulfate ◽  
Main Reaction ◽  
Ferric Nitrate ◽  
Main Reaction Product

AbstractOxalic acid is common used in industry. It is also found to be the main reaction product in many advanced oxidation processes (AOPs), especially in the Fenton degradation process. In light, it may be mineralized via Fe(III)-catalyzed photoreaction (i.e. Photo-Fenton reaction). In this study, we found a novel electrochemical oxidation reaction called Fered-Fenton method to mineralize oxalic acid. We investigated the effects of anion and cathode material on the mineralization of oxalate. It was found that Ti-DSA cathode and ferric chloride solution showed the better results than those cathodes made of stainless steel and solutions prepared by ferric sulfate and ferric nitrate. COD could be completely removed in 3 hours when used Ti-DSA cathode and 30 mM ferric chloride solution to treat 20 mM oxalate. On the other hand, only 91% COD could be removed when used stainless steel net cathode instead of Ti-DSA one, and only 55% COD removal was obtained when further used ferric sulfate instead of ferric chloride. We also found that COD and TOC removals made little difference when reduced ferric chloride concentration from 30 mM to 6.67 mM. It could reduce the reagent cost of Fered-Fenton method.

A rapid silver-impregnation technique on ultra-thin sections for Electron Microscopy

1993 ◽  
Vol 51 ◽  
pp. 242-243
Author(s):  
K. Chien ◽  
R.C. Heusser ◽  
M.L. Jones ◽  
R.L. Van de Velde
Keyword(s):  
Electron Microscopy ◽  
Silver Nitrate ◽  
Silver Impregnation ◽  
Sodium Borate ◽  
Renal Diseases ◽  
Distilled Water ◽  
Thin Sections ◽  
Impregnation Technique ◽  
Centrifuge Tube ◽  
Simplified Procedure

Silver impregnation techniques have been used for the demonstration of the complex carbohydrates in electron microscopy. However, the silver stains were believed to be technically sensitive and time consumming to perform. Currently, due to the need to more specifically evaluate immune complex for localization in certain renal diseases, a simplified procedure in conjunction with the use of the microwave has been developed and applied to renal and other biopsies. The procedure is as follows:Preparation of silver methenamine solution:1. 15ml graduated, clear polystyrene centrifuge tube (Falcon, No. 2099) was rinsed once with distilled water.2. 3% hexamethylene tetramine (methenamine) was added into the centrifuge tube to the 6ml mark.3. 3% silver nitrate was added slowly to the methenamine to the 7ml mark while agitating. (Solution will instantly turn milky in color and then clear rapidly by mixing. No precipitate should be formed).4. 2% sodium borate was added to the solution to the 8ml mark, mixed and centrifuged before use.

Leaching Studies of Cement-Glass Package Containing Sodium Borate

1986 ◽  
Vol 84 ◽  
Author(s):  
Masahiro Okamoto ◽  
Koichi Chino ◽  
Tsutomu Baba ◽  
Tatsuo Izumida ◽  
Fumio Kawamura ◽  
...  
Keyword(s):  
Sodium Silicate ◽  
Liquid Waste ◽  
Sodium Borate ◽  
Pressurized Water Reactor ◽  
X Ray Diffraction ◽  
Adsorption Ability ◽  
Pressurized Water ◽  
X Ray ◽  
Solidification Reaction ◽  
Main Components

AbstractA new solidification technique using cement-glass, which is a mixture of sodium silicate, cement, additives, and initiator of the solidification reaction, was developed for sodium borate liquid waste generated from pressurized water reactor (PWR) plants. The cement-glass could solidify eight times as much sodium borate as cement could, because the solidifying reaction of the cement-glass is not hindered by borate ions.The reaction mechanism of sodium silicate and phosphoric silicate (initiator), the main components of cement-glass, was studied through X-ray diffraction and compressive strength measurements. It was found that three- dimensionally bonded silicon dioxide was produced by polymerization of the two silicates. The leaching ratio of cesium from the cement-glass package was one-tenth that of the cement one. This low value was attributed to a high cesium adsorption ability of the cement-glass and it could be theoretically predicted accordingly.

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