scholarly journals A Mn(iii) polyoxotungstate in the oxidation of organosulfur compounds by H2O2 at room temperature: an environmentally safe catalytic approach

2016 ◽  
Vol 6 (9) ◽  
pp. 3271-3278 ◽  
Author(s):  
Tiago A. G. Duarte ◽  
Sónia M. G. Pires ◽  
Isabel C. M. S. Santos ◽  
Mário M. Q. Simões ◽  
M. Graça P. M. S. Neves ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Room Temperature ◽  
Organosulfur Compounds ◽  
Keggin Type ◽  
Environmentally Safe

A manganese monosubstituted Keggin-type polyoxometalate was used as a catalyst in the oxidation of recalcitrant organosulfur compounds by hydrogen peroxide at room temperature.

scholarly journals Removal of refractory organosulfur compounds via oxidation with hydrogen peroxide on amorphous Ti/SiO2 catalysts

2010 ◽  
Vol 3 (3) ◽  
pp. 328 ◽  
Author(s):  
M. Carmen Capel-Sanchez ◽  
Jose M. Campos-Martin ◽  
Jose L. G. Fierro
Keyword(s):  
Hydrogen Peroxide ◽  
Organosulfur Compounds

Treatment of VX Hydrolysate with Ultraviolet Light and Hydrogen Peroxide

1997 ◽  
Vol 2 (3) ◽  
Author(s):  
Michael G. MacNaughton ◽  
James R. Scott
Keyword(s):  
Hydrogen Peroxide ◽  
Ultraviolet Light ◽  
Pilot Scale ◽  
Methylphosphonic Acid ◽  
Chemical Agent ◽  
Organosulfur Compounds ◽  
Two Phase ◽  
First Order ◽  
Engineering Study ◽  
Inorganic Sulfate

AbstractAn engineering study was performed to evaluate the use of ultraviolet light and hydrogen peroxide to destroy caustic-neutralized VX nerve agent in the U.S. chemical agent stockpile as an alternative to incineration. Whereas caustic neutralization completely destroys VX, (3-ethyl-S-2-(diisopropylamino)ethyl methylphosphonothiolate, the reaction leaves a complex two-phase mixture containing organic phosphates and organosulfur compounds which require treatment prior to ultimate disposal. Studies performed in laboratory-scale (320-mL), bench-scale (10-L) and pilot-scale (20-L) reactors demonstrated that the principal products of the caustic neutralization-ethyl methylphosphonic acid (EMPA), methylphosphonic acid (MPA), 2-(diisopropylamino)ethyl sulfide (RSR), disulfide (RSSR) and the other mixed sulfides-could be oxidized to inorganic sulfate, phosphate, ammonia and carbon dioxide. The reaction was zero order above 1000 mg/L and pseudo first order below. To mineralize 10,000 lb of VX per day to less than 10 mg/L organic carbon would require more than 1100 lamps of 30 kW each.

scholarly journals Studies on the Preservation of Raw Cow’s Milk by Chemical Method

1970 ◽  
Vol 42 (3) ◽  
pp. 317-326 ◽  
Author(s):  
F Rokhsana ◽  
UK Das ◽  
R Yeasmin ◽  
A Nahar ◽  
S Parveen
Keyword(s):  
Hydrogen Peroxide ◽  
Chemical Method ◽  
Room Temperature ◽  
Storage Period ◽  
Total Coliform ◽  
Human Consumption ◽  
Milk Products ◽  
E Coli ◽  
Keeping Quality ◽  
Control Milk

Studies carried out to develop a technique for the preservation of cow's milk in raw condition using hydrogen peroxide (H2O2) as a preservative. Fresh cow’s milk was collected and experiments were conducted by four treatments in order to achieve the optimum condition of storage. The treatments were with various concentration of H2O2 starting from 0.05 %, 0.1 %, 0.2 %, 0.3 %, 0.4 %, & 0.5 %. Treated milk with 0.05 % concentration of H2O2 had storage period of 20 days compared to that of the control one (5 days only) in refrigerated temperature (±8°C). On the other hand hydrogen peroxide treated milk (0.05 %) had a storage period of 8 hours at room temperature (±28°C). Results also showed that the higher concentration of H2O2 had no effect on storage period than that of control. Milk products like kheer and halawa prepared by treated milk and stored for 20 days showed almost nil growth of total coliform and E. coli which means that food products prepared from hydrogen peroxide treated milk is safe for human consumption. Key words: Raw, Storage, Hydrogen peroxide, Preservative, keeping quality, Pasteurization, deteriorated, MPN. Bangladesh J. Sci. Ind. Res. 42(3), 317-326, 2007

scholarly journals Formation of Water-Soluble Fullerenes [C60,C70] under Ultrasonication and Antioxidant Effect

2017 ◽  
Vol 5 (1) ◽  
pp. 61
Author(s):  
Weon-Bae Ko ◽  
Hong-Seok Jeong ◽  
Sung-Ho Hwang
Keyword(s):  
Hydrogen Peroxide ◽  
Room Temperature ◽  
Antioxidant Effect ◽  
Water Soluble ◽  
Maldi Tof Ms ◽  
Pc 12 Cells ◽  
Effect Of Water ◽  
Maldi Tof ◽  
Line Following ◽  
Tof Ms

<p>The water-soluble fullerenes [C<sub>60</sub>, C<sub>70</sub>] are prepared with fullerenes [C<sub>60</sub>, C<sub>70</sub>] and a mixture of oxidants (v/v) at the ratio of 3:1 under ultrasonic condition at room temperature. The MALDI-TOF MS confirmed that the water-soluble compounds were C<sub>60</sub> and C<sub>70</sub>. The antioxidant effect of water-soluble fullerenes [C<sub>60</sub>, C<sub>70</sub>] in the PC 12 cells (Rat pheochromocytoma) line following exposure to hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) was investigated.</p>

A comparative study between Keggin-type tungstophosphates and tungstosilicates in the oxidation of cyclooctane with hydrogen peroxide

2004 ◽  
Vol 222 (1-2) ◽  
pp. 159-165 ◽  
Author(s):  
M. Salete S. Balula ◽  
Isabel C.M.S. Santos ◽  
Mário M.Q. Simões ◽  
M. Graça P.M.S. Neves ◽  
José A.S. Cavaleiro ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Comparative Study ◽  
Keggin Type
Sign in / Sign up

Export Citation Format

Share Document