scholarly journals Standardization of potassium permanganate solution by sodium oxalate

1913 ◽  
Vol 8 (4) ◽  
pp. 611
Author(s):  
R. S. McBride
Keyword(s):  
Potassium Permanganate ◽  
Sodium Oxalate ◽  
Potassium Permanganate Solution

Etching of LLDPE and LLDPE/HDPE blends

1996 ◽  
Vol 54 ◽  
pp. 200-201
Author(s):  
M. S. Bischel ◽  
J. M. Schultz
Keyword(s):  
Potassium Permanganate ◽  
Morphological Features ◽  
Narrow Fraction ◽  
Potassium Permanganate Solution ◽  
Commercial Applications ◽  
Microscopy Techniques

Despite its rapidly growing use in commercial applications, the morphology of LLDPE and its blends has not been thoroughly studied by microscopy techniques. As part of a study to examine the morphology of a LLDPE narrow fraction and its blends with HDPE via SEM, TEM and AFM, an appropriate etchant is required. However, no satisfactory recipes could be found in the literature. Mirabella used n-heptane, a solvent for LLDPE, as an etchant to reveal certain morphological features in the SEM, including faint banding in spherulites. A 1992 paper by Bassett included a TEM micrograph of an axialite of LLDPE, etched in a potassium permanganate solution, but no details were given.Attempts to use n-heptane, at 60°C, as an etchant were unsuccessful: depending upon thickness, samples swelled and increased in diameter by 5-10% or more within 15 minutes. Attempts to use the standard 3.5% potassium permanganate solution for HDPE were also unsuccessful: the LLDPE was severely overetched. Weaker solutions were also too severe.

A Study on the Removal of NOx in Simulated Flue Gas Using Urea/Potassium Permanganate Solution as Absorbent

2011 ◽  
Vol 71-78 ◽  
pp. 2797-2805
Author(s):  
Jiang Jun Hu ◽  
Jing Liu ◽  
Ying Zheng ◽  
Chao Ping Cen ◽  
Fu Xing Gan
Keyword(s):  
Potassium Permanganate ◽  
Removal Efficiency ◽  
Flue Gas ◽  
Solution Process ◽  
Effective Height ◽  
Potassium Permanganate Solution

The removal of NOxin simulated flue gas was studied using urea/ potassium permanganate solution with different concentrations as absorbent. Experiments were carried out in a packed absorption reactor filled with steel pall rings at about 70°C. The effect of amount of urea, amount of potassium permanganate, effective height of absorption solution and addition of SO2on denitrification efficiency was examined. The results show that a high removal efficiency of NOxcan be attained using urea/ potassium permanganate solution process, In the solution of 5% urea and 600mg/L potassium permanganate, the removal efficency of NOxcould be achieved 91.5%. Increasing the amount of potassium permanganate and the effective height of absorption solution could improve denitrification efficiency remarkably. Whereas, no obvious improvement in NOxremoval efficiency was observed when increasing the amount of urea without potassium permanganate. The adding of SO2resulted in a decline of denitrification efficiency.

Experimental Study on the Modification of Granular Activated Carbon by Potassium Permanganate to Adsorb Cu2+ in the Water

2014 ◽  
Vol 955-959 ◽  
pp. 2453-2457
Author(s):  
Hui Yang ◽  
Meng Zhao ◽  
Ji Gang Yang ◽  
Xin Chai ◽  
Yue Xu
Keyword(s):  
Activated Carbon ◽  
Potassium Permanganate ◽  
Ph Value ◽  
Removal Rate ◽  
Solution Concentration ◽  
Test Methods ◽  
Adsorption Time ◽  
Potassium Permanganate Solution ◽  
Initial Concentration ◽  
Main Factors

This document studies test methods on modification of activated carbon by potassium permanganate to adsorb Cu2+. Ensure all factors’ effects on Cu2+ removal. Use potassium permanganate solution to modify activated carbon, investigate main factors’ effects on Cu2+ removal and analyze mechanism by changing potassium permanganate solution concentration, adsorption time, activated carbon’s additive amount and temperature. The results show that modification of activated carbon by 0.03mol/L potassium permanganate solution (0.03K-GAC) can adsorb Cu2+ best. 0.03K-GAC’s removal rate on Cu2+ is 98% when the initial concentration of Cu2+ is 50mg/L, the additive amount of 0.03K-GAC is 2.0g, the pH value is 5.5, the temperature is 25°C and the adsorption time is 4h. Modification of activated carbon by potassium permanganate has good adsorbability on Cu2+. Potassium permanganate solution concentration, adsorption time and additive amount can influence the adsorption of Cu2+ by activated carbon. However, temperature’s influence on the effect of adsorption is non-significant.

scholarly journals Some Observations on Thin Layer Chromatography Technique

2019 ◽  
Vol 8 (2) ◽  
pp. 1700-1702
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Potassium Permanganate ◽  
Mobile Phase ◽  
Technical Aspects ◽  
Potassium Permanganate Solution ◽  
Tlc Plates ◽  
Solvent Use ◽  
Layer Chromatography

The present study is to report the various problems faced during TLC methodology. Although used regularly some technical aspects must be kept in mind to get better and uniform results. During our experiments with TLC methods we came across some problems and here these aspects of TLC methodology are being highlighted. It is suggested that the solvent use as mobile phase should also be used for extraction of any particular phytochemical. TLC plates should be 3 to 4 mm thick, to be dried for at least 72 hrs. It is also suggested that potassium permanganate solution gives better clarity in visualizing the spots

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