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  • 1
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration. Communication 8. Thermal characteristics and stabilities of solid phases of the system. NaOh - h2O2 - H4O (1955)
    Springer
    Russian chemical bulletin 4 (1955), S. 187-191 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. An investigation has been made, with the aid of heating curves, of the thermal stabilities and dehydration behavior of the solid phases found in the ternary system NaOH - H2O2 - H2O at O0. namely Na2O2 8H2O and Na4O2 2H2O2 4H2O2, and also of the so-called “sodium hydroperoxido” NaOOH or Na2O2 H2O2 which was synthesized by Tafel's method. 2. The compound Na4O2 8H2O is undoultedly a hydrated form of sodium peroxide. This view is confirmed by the occurrence of endothermic dehydration effects, and by the curves for the dehydration of Na4O2 8H4O4 which pass through the stages Na2O2 8H2O, Na2O2 - 2H2O, and Na2O2 - H2O 3. The compound Na2O2 - 2H2O4 - 4H2O is of lower stability. Its heating curve has a very marked exothermic maximum at 60–65 characteristic of pcthydrate compounds. The temperature at which complete decomposition occurs is the same as the decomposition temperature of Na2O2 - 8H2O. 4. The existing data on the properties of the so-called “sodium hydropetoxide” NaOOH support the view that this compound should be regarded as Na2O2 - H2O2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178266
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  • 2
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration communication 9. The ternary system LiOH-H2O2-H2O (1955)
    Springer
    Russian chemical bulletin 4 (1955), S. 365-371 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. The ternary system LiOH \3- H2O2 \3- H2O was studied by the solubility method at +10\dg, 0\dg, \t-10\dg, and \t-21\dg, and solubility isotherms and polytherms were plotted 2. A solubility study of the ternary system LiOH \3- H2O2 \3- H2O in which the compositions of solid phases were determined by the residue method has established the existence of the following peroxide compounds of lithium: Li2O2H2O2 \sd 3H2O, Li2O2 \sd H2O2 and Li2O2 \sd 2H2O2. 3. Cohen's assertion regarding the absence of the compound Li2O2 \sd H2O2 \sd 3H2O, previously found by de Forcrand, was not confirmed. The compound Li2O2 · H2O2 · 3H2O exists over a wide range of temperature and over a wide range of hydrogen peroxide concentrations (5.0–40.0% H2O2). 4. The existence of the previously unknown compound Li2O2 \sd 2H2O2 is at a hydrogen peroxide concentration in the liquid phase of 64.8% at +10\dg and 84.0% at \t-21\dg. 5. The solid phases isolated in the course of the study of this system were investigated by several physicochemical methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01191918
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  • 3
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration Communication 11. Characterization of the solid phases of the system LiOH-H2O2-H2O by thermal analysis (1956)
    Springer
    Russian chemical bulletin 5 (1956), S. 283-287 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. Study of the thermal decomposition of Li2O2-H2O2-2H2O and LiO2-2H2O2 showed that when these compounds are heated to 150–170°, they are converted into Li2O2 with simultaneous loss of H2O2 and H2O. 2. The simultaneous loss of H2O2 and H2O by the preparation Li2O2-H2O2-2H2O and its conversion by heat into Li2O2 give grounds for assigning a perhydrate structure to this compound, Le, Li2O2-H2O2-2H2O, and not the hydroperoxide LiOOH-H2O. 3. The compound Li2O2-2H2O2 was isolated for the first time, and its individuality was confirmed by the thermal method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01172445
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  • 4
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration (1957)
    Springer
    Russian chemical bulletin 6 (1957), S. 147-150 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. The solid phases found in the investigation of the system Zn(OH)2-H2O2-H2O are stable only when in equilibrium with the corresponding liquid phases. Only ZnO2 · 0.5 H2O was isolated as a chemical individual. 2. The final product of the dehydration of the various solid phases of the system is ZnO2 · 0.5H2O. 3. Further prolonged drying of ZnO2 · 0.5 H2O at 110° does not give anhydrous zinc peroxide, ZnO2, but is accompanied by decomposition of the peroxide. 4. Thermal analysis showed that ZnO2 · 0.5 H2O decomposes with elimination of H2O and active oxygen at 180–190°
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01170547
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  • 5
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration Communication 18. Physicochemical characterization of the solid phases in the system Sri(OH)2-H2O2-H2O (1959)
    Springer
    Russian chemical bulletin 8 (1959), S. 751-758 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. A study of the dehydration process and the data from thermal investigations with a recording pyrometer have permitted the establishment of the individuality of each of the compounds SrO2, SrO2· 8H2, SrO2· H2O2, and SrO2 · 2H2O2. 2. Active oxygen is removed from the perhydrates with an exothermic effect at ≈75°, and from strontium peroxide at ≈450° with an endothermic effect. Water is removed stepwise in the dehydration at +80° and 100° for SrO2 · 8H2O. 3. The hydrates and perhydrates investigated go over to SrO2 upon dehydration. 4. The peroxide compounds of strontium investigated, except for the diperhydrate are stable at room temperature. The diperhydrate of SrO2 (SrO2 · 2H2O2) decomposes at-5°. 5. Data from x-ray and crystallooptical investigations confirm the individual nature of the peroxide compounds of strontium found in the study of the system Sr(OH)2-H2O2- H2O.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00915899
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  • 6
    Electronic Resource
    Electronic Resource
    Synthesis and study of the properties of lithium peroxide diperhydrate (1960)
    Springer
    Russian chemical bulletin 9 (1960), S. 1229-1232 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. Lithium peroxide diperhydrate Li2O2· 2H2O2 may be obtained by the action of concentrated hydrogen peroxide on lithium peroxide hydrate monoperhydrate Li2O2· H2O2· 2H2O at low temperatures. 2. Li2O2· 2H2O2 preparations are stable only when they are completely free from mother liquor. The mother liquor may be removed from Li2O2 · 2H2O2 preparations in vacuum at low temperatures. 3. The individuality of the compound Li2O2 · 2H2O2 was confirmed by differential thermal and qualitative x-ray phase analyses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00907647
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  • 7
    Electronic Resource
    Electronic Resource
    Systems containing concentrated hydrogen peroxide Communication 4. Solubility isotherms of the ternary system Ca(OH)2-H2O2-H2O (1954)
    Springer
    Russian chemical bulletin 3 (1954), S. 323-328 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. A study of the interaction of aqueous solution of calcium hydroxide with hydrogen peroxide over a wide range of concentrations, carried out by the solubility method applied to the ternary system Ca(OH)2-H2O2-H2O at 0°,−10°, and −21°, has made it possible to determine the actual composition and limits of existence of the stable solid phases. 2. The calcium peroxy compounds whose existence is fully established by the study of the ternary system Ca(OH2-H2O2-H2O at 0°, −10°, and −21° are: CaO2·8H2O; CaO2·2H2O and CaO2·2H2O2. 3. Formation of calcium peroxide octahydrate occurs under restricted conditions at low hydrogen peroxide concentrations. 4. Calcium peroxide diperhydrate is formed over a wide range of hydrogen peroxide concentrations and is relatively stable only at low temperatures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01167806
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  • 8
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration communication 12. The ternary system Zn (OH)2-H2O2-H2O (1957)
    Springer
    Russian chemical bulletin 6 (1957), S. 1-15 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. The system Zn (OH)2-H2O2-H2O was studied at 30,20, 0, −10, and −20° by the solubility method. 2. The true composition and succession of changes in the system Zn(OH)2-H2O2-H2O were established from a general analysis of data for the diagrams ZnO-H2O-1/2 O2 and ZnO-H2O2 in the liquid phase. 3. In the system Zn (OH)2-H2O2-H2O in the temperature range from 30° to −20° it may be considered provisionally that the following solid phases exist: a) a series of hydrates of zinc peroxide: ZnO2 · 2H2O; ZnO2 · 1.5H2O; ZnO2 · H2O; ZnO2 • 0.5H2O; b) anhydrous zinc peroxide ZnO2; c) zinc peroxide monohydrate semiperhydrate: ZnO2 · 0.5H202 β H2O; d) perhydrates of zinc peroxide: ZnO2 · H2O2, ZnO2 · 2H2O2. 4 Comparison of our data on the system Zn (OH)2 - H2O2 - H2 O in the temperature range from 30° to − 20° with data in the literature (Figure 1) shows that the great majority of the peroxy compounds of zinc reported previously were probably mechanical mixtures. 5. The polythermal solubility diagram of the ternary system Zn (OH)2 - H2O2 - H2O was constructed and enables the limits of existence of the solid phases of the system to be determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01168840
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  • 9
    Electronic Resource
    Electronic Resource
    Systems containing hydrogen peroxide at high concentration Communication 16. Solubility isotherms of the ternary system Sr(OH)2-H2O2-H2O (1958)
    Springer
    Russian chemical bulletin 7 (1958), S. 1358-1363 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. The interaction between Sr(OH)2 and H2O2 was investigated at various H2O2 concentrations by the solubility method in the system Sr(OH)2-H2O2-H2O at −10
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00914846
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  • 10
    Electronic Resource
    Electronic Resource
    A Study of systems containing concentrated hydrogen peroxide 14. Solubility isotherms of the ternary system K2CO3-H2O2-H2O (1958)
    Springer
    Russian chemical bulletin 7 (1958), S. 995-1000 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. The existence of stable solid phases of K2CO3· 6H2O, K2CO3 · 4H2O and K2CO3 · 3H2O2 was established by the study, by means of the solubility method, of the system K2CO3 -@#@ H2O2-H2O at three temperatures: 0, 20 and −10
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00912335
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