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-
Name
Barium peroxide
- EINECS 215-128-4
- CAS No. 1304-29-6
- Article Data126
- CAS DataBase
- Density 4.96 g/cm3
- Solubility Insoluble in water
- Melting Point 450 °C
- Formula BaO2
- Boiling Point 150.2 °C at 760 mmHg
- Molecular Weight 169.329
- Flash Point 21 °C
- Transport Information UN 1449 5.1/PG 2
- Appearance greyish white powder
- Safety 13-27
- Risk Codes 8-20/22
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Molecular Structure
-
Hazard Symbols
O,
Xn
- Synonyms Bariumoxide (BaO2);Barium peroxide(Ba(O2));
- PSA 46.12000
- LogP -0.23760
Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| With water at 500-600°C; with oxygen containing 0.001g H2O/l; | 100% |
| With water at 400°C with oxygen containing 0.001g H2O/l; | 94.6% |
| With water at 750°C with oxygen containing 0.001g H2O/l; | 61.9% |
Conditions
| Conditions | Yield |
|---|---|
| With oxygen -35°C; | A 7.5% B 92.5% |
| With oxygen -50°C; | A 9.1% B 90.9% |
| With oxygen at low temp.; |
Conditions
| Conditions | Yield |
|---|---|
| In ammonia conducting oxygen into Ba soln. in NH3 liq.; | A 9.07% B n/a |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| Kinetics; byproducts: oxygen; Ba-atoms and O3-molecules are brought to reaction in crossed molecular beams to form BaO2 and O-atoms at high collision energies. Lower collision energies lead to BaO and O2 as products.; Reaction products are detected by quadrupole mass spectrometry.; |
Conditions
| Conditions | Yield |
|---|---|
| In not given Electrolysis; electrolysis of Ba(OH)2-solution at 0-12°C at using of a diaphragma; the used solution is treated before and during the electrolysis with O3-containing O2 or ozonated CO2-free air; BaO2 ppts.;; | |
| In not given Electrolysis; electrolysis of Ba(OH)2-solution at 0-12°C at using of a diaphragma; the used solution is treated before and during the electrolysis with O3-containing O2 or ozonated CO2-free air; BaO2 ppts.;; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With pyrographite exclusion of air, annealing while passing steam into react. mixt.; | |
| With pyrographite exclusion of air, annealing while passing steam into react. mixture; | |
| With pyrographite exclusion of air, annealing while passing steam into react. mixt.; |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| gentle glowing; | |
| heating; |
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) inert conditions, thermal decompg. of BaCO3 (1373 K, 10**(-2) Pa, 100 h), then dry O2 atmosphere (623 -673 K, 100 h, several regrindings); detd. by X-ray diffraction; | |
| With air In neat (no solvent) heating of a mixture of BaCO3 and soot forms BaO; treatment of the hot BaO with air;; |
Conditions
| Conditions | Yield |
|---|---|
| With chlorine In neat (no solvent) Cl2 reacts with BaO at grinding under formation of an instable addition-compound which decomposites to BaO2, BaCl2 and a trace of Ba(ClO)2;; | A <1 B n/a C n/a |
| With Cl2 In neat (no solvent) Cl2 reacts with BaO at grinding under formation of an instable addition-compound which decomposites to BaO2, BaCl2 and a trace of Ba(ClO)2;; | A <1 B n/a C n/a |
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A
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| With copper(II) oxide glowing; | |
| With copper(II) oxide glowing; dry reactants; | A 0% B n/a |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| With detonating gas 250-280°C; | |
| With oxygen In neat (no solvent) reaction of BaO with O2 under formation of BaO2;; | |
| With air; water at 500-600°C and normal pressure; |
Conditions
| Conditions | Yield |
|---|---|
| With air; water 500°C; | |
| With air; H2O 500°C; |
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) reation of N2O with BaO at 480-620°C forms BaO2 and Ba(NO2)2;; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating a mixture of 3 mol BaO and 1 mol Ag2O in a stream of N2 at 300-400°C for several days;; | |
| In neat (no solvent) heating a mixture of 3 mol BaO and 1 mol Ag2O in a stream of N2 at 300-400°C for several days;; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With hydrogen In not given reaction at 250°C;; | |
| With H2 In not given reaction at 250°C;; |
Conditions
| Conditions | Yield |
|---|---|
| byproducts: KCl; gentle glowing; leaching off KCl from the cooled melt (water); hydrated BaO2; |
Conditions
| Conditions | Yield |
|---|---|
| In melt equal wt. amts.; | A 0% B n/a |
| In melt equal wt. amts.; | A 0% B n/a |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With Al2O3 In neat (no solvent) heating (air, 300 K/h to 1073 K, 5 h at 1073 K), slowly cooling to 923 K (4.2 K/h); |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air burning; |
Conditions
| Conditions | Yield |
|---|---|
| burning; | |
| With water 500°C; with dry oxygen; | <1 |
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12337-90-5
barium peroxide * hydrogen peroxide
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| careful drying; | |
| careful drying; |
-
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| 100°C; 2 wk standing above P2O5 in vac. at 350°C; | |
| above 200°C; | |
| careful drying; |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| heating; | |
| heating; | |
| With O2 In water precipitation from oxygenated water; XRD; |
Conditions
| Conditions | Yield |
|---|---|
| With NH3 In water pptn. on addn. of NH3 and H2O2 to aq. Ba(NO3)2; drying (O2 flow, 200°C); |
Conditions
| Conditions | Yield |
|---|---|
| In water boiling of a solution of Ba(OH)2*8H2O in H2O for a longer period of time; addition of 3% H2O2-solution ppts. BaO2*8H2O; sucking off and washing; draining over P2O5 at roomtemperature;; contains 98.87-99.33% BaO2;; | |
| In water filtration of a solution of Ba(OH)2*8H2O in destillated H2O in CO2-free O2-atmosphere; addition of 1% H2O2-solution ppts. BaO2*8H2O; sucking off, washing and drying at 95°C for 5 min in CO2-free O2; draining in vac. at 90°C for 20 min;; content: 97.4% BaO2, 1.4% BaO and 1.2% H2O + CO2;; |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| byproducts: H2O; at 700°C in pure dry oxygen stream; pure prod. with little hydroxide content; |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| careful drying; | |
| careful drying; |
Conditions
| Conditions | Yield |
|---|---|
| With barium amalgam not very dry oxygen; | A <1 B n/a C n/a D n/a |
...Expand
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80937-33-3
oxygen
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| With barium amalgam 10h, 60 atm, 15°C; | |
| With barium amalgam >10h, 60 atm, 15°C; or 1h, 60 atm, 100°C; | 0% |
Conditions
| Conditions | Yield |
|---|---|
| In melt blowing air or oxygen into the melt at 400-600°C; sieving in melt; | |
| 10h, 60 atm, 15°C; | 0% |
| In water Electrolysis; blowing oxygen into a cooled soln.; | |
| In water Electrolysis; blowing oxygen into a cooled soln.; |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| 1h at 1150°C in electric oven; | 100% |
| With metals heating; | |
| iron(III) oxide byproducts: oxygen; beginning of oxygen formation at 200-250°C; |
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) High Pressure; the mixt. of the oxides was placed in a pyrophyllite container with a graphite heater lined with a Pt foil in a toroidal high-pressure chamber; 1.0 GPa, 940°C, 10 min.;; | 100% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) (Ar or vac.); heated to 900°C at a rate of 200°C/h, kept at 900°C for 20 h, cooled to 500°C at a rate of 5°C/h; allowed to cool to room temp.; | A 1% B 1% C 99% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In solid heating mixt. of educts in air, O2 or N2 atm. at 450 °C, 10 min.;; | 95% |
| In neat (no solvent, solid phase) heating mixt. of educts in air, O2 or N2 atm. at 450 °C, 10 min.;; | 95% |
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) a mixt. of 1BaCO3 + 1BaO2 + 0.5Y2O3 + 1 Pd is heated in a silica crucible at 815°C (22 h); at temps. above 850°C, YBa2Cu(3-x)Pd(x)O(y) is decomposed; at temps. below 800°C, BaCuO2 is the major phase; Cu(3+) content detd. by chem. anal.; | A n/a B n/a C 90% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) heated in alumina crucibles at 815°C; | 90% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air explosive compression of a powder mixture of the reaction components; | A 80% B 10% |
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Conditions
| Conditions | Yield |
|---|---|
| 96% of the theoretically necessary Al; 80% BaO2 refer to used Al amt.; Al content: <0.1%; | 74.3% |
| 96% of the theoretically necessary Al; 80% BaO2 refer to used Al amt.; Al content: <0.1%; | 74.3% |
| 96% of the theoretically necessary Al; 30% BaO2 refer to used Al amt.; Al content: <.1%; | 65% |
| 96% of the theoretically necessary Al; 30% BaO2 refer to used Al amt.; Al content: <.1%; | 65% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air explosive compression of a powder mixture of the reaction components; | A 70% B 20% |
...Expand
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| With oxygen In solid solid combustion synthesis, mixed, pressed, ignited under O2 atmosphere, powdered and recompacted products resintered; | A 35% B 65% |
| With oxygen In solid solid combustion synthesis, mixed, pressed, ignited under O2 atmosphere; BaCuO2: main product; | A n/a B 30% |
| With oxygen In solid pellets fired twice in the conventional way; | A 5% B n/a |
...Expand
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) High Pressure; the mixt. of the oxides was placed in a pyrophyllite container with a graphite heater lined with a Pt foil in a toroidal high-pressure chamber; 1.0 GPa, 940°C, 10 min.;; | A n/a B n/a C 60% |
| With Cu In neat (no solvent) High Pressure; the mixt. of the oxides was placed in a pyrophyllite container with a graphite heater lined with a Cu foil in a toroidal high-pressure chamber; 2.0 GPa, 940°C, 10 min.;; | A n/a B n/a C 10% |
| With Cu In neat (no solvent) High Pressure; the mixt. of the oxides was placed in a pyrophyllite container with a graphite heater lined with a Cu foil in a toroidal high-pressure chamber; 1.0 GPa, 940°C, 10 min.;; | A n/a B n/a C 5% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air explosive compression of a powder mixture of the reaction components; | A 40% B 50% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| after 3 h; | 40% |
| after 3 h; | 40% |
...Expand
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1304-29-6
barium peroxide
Conditions
| Conditions | Yield |
|---|---|
| With air explosive compression; | 30% |
| With alkali carbonate In water byproducts: alkali peroxide; | |
| With alkali carbonate In water byproducts: alkali peroxide; |
Conditions
| Conditions | Yield |
|---|---|
| mechanical activation, annealing at 1200°C; detd. by X-ray diffraction and scanning electron microscopy; | A 1% B n/a C n/a |
| mechanical activation, annealing at 1100 or 1300°C; detd. by X-ray diffraction and scanning electron microscopy; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air In neat (no solvent) heating of components at 850-900°C for 48 h; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air used an alumina crucible with a lid, samples are fired in air in a temp. range of 900 to 935°C; powder x-ray diffraction; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air used an alumina crucible with a lid, attempts are made under a moderate flow of N2 with one end of the furnace tube open to the air, firing the samples in a temp. range of 900 to 935°C several times to ensure homogenity and phase purity; powder x-ray diffraction; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air used an alumina crucible with a lid, attempts are made under a moderate flow of N2 with one end of the furnace tube open to the air, firing the samples in a temp. range of 900 to 935°C several times to ensure homogenity and phase purity; powder x-ray diffraction; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air used an alumina crucible with a lid, firing the samples in air in a temp. range of 900 to 935°C several times to ensure homogenity and phase purity; powder x-ray diffraction; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air used an alumina crucible with a lid, sample is fired in air in a temp. range of 900 to 935°C; powder x-ray diffraction; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With air used an alumina crucible with a lid, attempts are made under a moderate flow of N2 with one end of the furnace tube open to the air, firing the samples in a temp. range of 900 to 935°C several times to ensure homogenity and phase purity; powder x-ray diffraction; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) further educt CuO; appropriate amts. BaO2, SrCO3, Y2O3, CaO and CuO mixed, sintered twice (930°C, 12, air), cooled, PbO mixed in, heated twice (830°C, 12h, 1%O2-N2); quenched (N2), sintered (740-830°C, 40h, 1%O2-N2), quenched (N2); impurity phase = BaPbO3 (X-ray diffraction), EDX, iodide titration for amt. O; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) further educt CuO; appropriate amts. BaO2, SrCO3, Y2O3, CaO and CuO mixed, sintered twice (930°C, 12, air), cooled, PbO mixed in, heated twice (830°C, 12h, 1%O2-N2); quenched (N2), sintered (740-830°C, 40h, 1%O2-N2), quenched (N2); single phase (X-ray diffraction), EDX, iodide titration for amt. O; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) further educt CuO; appropriate amts. BaO2, SrCO3, Y2O3, CaO and CuO mixed, sintered twice (930°C, 12, air), cooled, PbO mixed in, heated twice (830°C, 12h, 1%O2-N2); quenched (N2), sintered (740-830°C, 40h, 1%O2-N2), quenched (N2); single phase (X-ray diffraction), EDX, iodide titration for amt. O; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) further educt CuO; appropriate amts. BaO2, SrCO3, Y2O3, CaO and CuO mixed, sintered twice (930°C, 12, air), cooled, PbO mixed in, heated twice (830°C, 12h, 1%O2-N2); quenched (N2), sintered (740-830°c, 40h, 1%O2-N2), quenched (N2)L; single phase (X-ray diffraction), EDX, iodide titration for amt. O; |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) further educt CuO; appropriate amts. BaO2, SrCO3, Y2O3, CaO and CuO mixed, sintered twice (930°C, 12, air), cooled, PbO mixed in, heated twice (830°C, 12h, 1%O2-N2); quenched (N2), sintered (785 or 830°lC, 40h, 1%O2-N2), quenched (N2); EDX, iodide titration for amt. O; |
...Expand
Barium peroxide Consensus Reports
Reported in EPA TSCA Inventory. Barium and its compounds are on the Community Right-To-Know List.
Barium peroxide Standards and Recommendations
OSHA PEL: TWA 0.5 mg(Ba)/m3
ACGIH TLV: TWA 0.5 mg(Ba)/m3; Not Classifiable as a Human Carcinogen
DFG MAK: 0.5 mg(Ba)/m3
DOT Classification: 5.1; Label: Oxidizer, Poison
Barium peroxide Specification
The systematic name of this chemical is barium dioxidanediide. With the CAS registry number 1304-29-6, it is also named as Peroxyde de baryum. The product's categories are industrial / fine chemicals; inorganics; oxidation; peroxides; synthetic reagents. It is greyish white powder which is insoluble in water. In addition, it is noncombustible, but accelerates the burning of combustible material. Barium peroxide is one of the most common inorganic peroxides, and it is a peroxide, containing O22- subunits wherein the oxygen atoms bond to each other as well as to the barium. Furthermore, it is not compatible with reducing agents, acids, bases, acetic anhydride, finely powdered metals, hydroxylamine, organic materials, and you must not take it combustible materials, heat and incompatible materials. This chemical should be sealed in the container and stored in the cool and dry place.
The other characteristics of this product can be summarized as: (1)ACD/LogP: -0.43; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.42; (4)ACD/LogD (pH 7.4): -0.42; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)#H bond acceptors: 2; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 1; (10)Enthalpy of Vaporization: 45.09 kJ/mol; (11)Boiling Point: 150.2 °C at 760 mmHg; (12)Vapour Pressure: 1.48 mmHg at 25°C.
Preparation of Barium peroxide: It can be obtained by the reversible absorption of O2 by barium oxide. The oxygen is released above 500°C. 2 BaO + O2 = 2 BaO2
Uses of Barium peroxide: It is used for bleaching. And it is also used in fireworks as an oxidizer, which also gives a vivid green colour, as do all barium compounds.
When you are using this chemical, please be cautious about it as the following:
It may cause fire when contact with combustible material. And it is harmful by inhalation and if swallowed, so peopel should keep away from food, drink and animal foodstuffs. Additionally, it should kept away from combustible material.
People can use the following data to convert to the molecule structure.
1. SMILES:[Ba+2].[O-][O-]
2. InChI:InChI=1/Ba.O2/c;1-2/q+2;-2
3. InChIKey:ZJRXSAYFZMGQFP-UHFFFAOYAZ
The following are the toxicity data which has been tested.
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | subcutaneous | 50mg/kg (50mg/kg) | Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974. |
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