REFRACTIVE INDEX OF HYDROGEN PEROXIDE SOLUTIONS. A REVISION

1949 ◽  
Vol 27b (3) ◽  
pp. 168-173 ◽  
Author(s):  
Paul A. Giguère ◽  
Pierre Geoffrion
Keyword(s):  
Hydrogen Peroxide ◽  
Refractive Index ◽  
Aqueous Solutions ◽  
Temperature Coefficient ◽  
Analytical Method ◽  
Senior Author ◽  
Accurate Data ◽  
Average Temperature ◽  
Accuracy Of Measurements

Values for the refractive index of aqueous solutions of hydrogen peroxide reported some years ago by the senior author have been found in error by more than the estimated accuracy of measurements. The error is proportional to the concentration of the solutions and amounts to about 5 × 10−4 for the pure peroxide. More accurate data have now been obtained by using an instrument of higher precision and by refining the analytical method. In addition, some anhydrous hydrogen peroxide has been prepared; its refractive index at 25 °C. was 1.40672 ± 0.0001 with an average temperature coefficient of 3.4 × 10−5 per degree.

THE REFRACTIVE INDICES OF HYDROGEN PEROXIDE AND ITS AQUEOUS SOLUTIONS

1943 ◽  
Vol 21b (8) ◽  
pp. 156-162 ◽  
Author(s):  
Paul A. Giguère
Keyword(s):  
Hydrogen Peroxide ◽  
Refractive Index ◽  
Aqueous Solutions ◽  
Accurate Method ◽  
Refractive Indices ◽  
Pure Hydrogen ◽  
A Value ◽  
Concentration Of Solutions ◽  
Hydrogen Lines ◽  
Good Agreement

The refractive indices of aqueous solutions of hydrogen peroxide for the C-, F-, and G-lines of hydrogen and the sodium D-line have been measured over the whole range of concentration at four temperatures: 16°, 20°, 24°, and 28 °C. The results obtained with the hydrogen lines are somewhat different from those of Cuthbertson and Maass. A possible explanation of this discrepancy is given. By extrapolation it was found that for pure hydrogen peroxide nD = 1.4087 at 20°, a value in good agreement with previous determinations. The refractive index affords a rapid and fairly accurate method for determining the concentration of solutions of hydrogen peroxide.

LUMINESCENT DETERMINATION OF SUGAR IN NATURAL HONEY

2020 ◽  
Vol 0 (4) ◽  
pp. 29-32
Author(s):  
B.M. GAREEV ◽  
◽  
A.M. ABDRAKHMANOV ◽  
G.L. SHARIPOV ◽  
◽  
...  
Keyword(s):  
Quantum Dots ◽  
Laboratory Test ◽  
Aqueous Solutions ◽  
Analytical Method ◽  
Sugar Content ◽  
Carbon Quantum Dots ◽  
Photoluminescence Intensity ◽  
Sucrose Content ◽  
Natural Honey

The photoluminescence of carbon quantum dots synthesized from natural honey and mixtures of honey and sugar has been studied. An increase in the sugar content leads to a decrease in the photoluminescence intensity without changing the shape of the luminescence spectrum of these quantum dots aqueous solutions, which is associated with a decrease in the yield of their synthesis in the sugar presence. The discovered effect can be used to detect sugar in honey. When examining five different market samples of flower honey using this method, two of them showed a significant decrease in the photoluminescence intensity. A laboratory test for compliance with GOST 19792-2017 Standard requirements established an excess of the sucrose content in these samples. Luminescent determination of sugar in honey does not require complicated equipment and can be used to develop a new analytical method for determining the sugar content in counterfeit natural honey.

Radiation-induced oxidation of 2-propanol by hydrogen peroxide in aqueous solutions

1970 ◽  
Vol 48 (18) ◽  
pp. 2948-2948
Author(s):  
C. E. Burchill ◽  
I. S. Ginns
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Radiation Induced

not available

Oxidation-reduction chemistry of hydrogen peroxide in aprotic and aqueous solutions

1979 ◽  
Vol 18 (7) ◽  
pp. 1971-1973 ◽  
Author(s):  
Mark M. Morrison ◽  
Julian L Roberts ◽  
Donald T. Sawyer
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Oxidation Reduction

Hydrogen Peroxide Yields in X-Irradiated Aqueous Solutions A Sensitive Method Based on Hydrazide Chemiluminescence

1955 ◽  
Vol 3 (4) ◽  
pp. 379 ◽  
Author(s):  
W. V. Mayneord ◽  
W. Anderson ◽  
H. D. Evans ◽  
D. Rosen
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Sensitive Method

Gamma radiolysis of alachlor aqueous solutions in the presence of hydrogen peroxide

2010 ◽  
Vol 184 (1-3) ◽  
pp. 308-312 ◽  
Author(s):  
Dongkyu Choi ◽  
O-Mi Lee ◽  
Seungho Yu ◽  
Seung-Woo Jeong
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Gamma Radiolysis

scholarly journals The influence of temperature on the absorption of water by seeds of hordeum vulgare in relation to the temperature coefficient of chemical change

1912 ◽  
Vol 85 (582) ◽  
pp. 546-553 ◽  
Keyword(s):  
Hordeum Vulgare ◽  
Aqueous Solutions ◽  
Temperature Coefficient ◽  
Chemical Change ◽  
Experimental Conditions ◽  
Influence Of Temperature ◽  
Suitable Medium ◽  
Influence Of Temperature On

Attention has previously been directed by one of us to the existence of a differential septum enclosing the seeds of Hordeum (barley). When the seeds are immersed in aqueous solutions of most electrolytes, and of many non-electrolytes, this covering behaves as a very efficient differential septum, water alone entering the seeds under the attractive influence of the finely granulated contents. The rate at which the water enters is considerably affected if substances are dissolved in it, being increased by some and diminished by others; it is also markedly dependent on the temperature of the water or solution in which the seeds are immersed. Variations of the rate at which water enters with alterations of the experimental conditions are presumably due mainly to changes in the water, and the seeds of Hordeum would thus appear to be a very suitable medium for the investigation of the nature of the changes produced in water by the presence of dissolved substances or by alterations of temperature.

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