Synthesis of barium peroxide

Preparation of barium peroxide

Preparation of barium peroxide from barium oxide and air

Preparation of barium peroxide

Preparation of barium peroxide

Twenty-six grams of barium nitrate are placed in a large covered crucible and heated with slowly rising temperature to a dull red color (about 500°C) for about one-half hour. After cooling, the mass is broken up quickly into small lumps and transferred rapidly to a weighed combustion tube. The tube and contents are weighed to determine the amount of barium oxide present and then heated in a circular combustion oven at about 460°G in a steady stream (about 3 bubbles/sec) of air which has been dried by passing first through sodium hydroxide and then through concentrated sulfuric acid. After cooling in the air current, the tube is weighed; the increase in weight should correspond to one-tenth the initial weight of the barium oxide, otherwise the material must be reheated again in oxygen using a slightly higher temperature (500° C).

Preparation of barium peroxide from hydrogen peroxide and barium hydroxide

Preparation of barium peroxide by the action of hydrogen peroxide on barium hydroxide

Preparation of barium peroxide by the action of hydrogen peroxide on barium hydroxide

Thirty grams of barium hydroxide are agitated with 500 ml of distilled water in a stoppered Erlenmeyer flask at 14° C until no more of the alkali dissolves. The mixture is then filtered by suction into 25 ml of fresh 3% hydrogen peroxide. The barium peroxide 8-hydrate that forms is first dehydrated in vacuum over phosphorus pontoxide in a desiccator, and then at 100°C. The yield of barium peroxide is 2.5-3 g.

Inorganic laboratory preparations, by G. G. Schlessinger, 7-8, 1962

IUPAC Name

barium(2+);peroxide

InChI

InChI=1S/Ba.O2/c;1-2/q+2;-2

InChI Key

ZJRXSAYFZMGQFP-UHFFFAOYSA-N

Canonical SMILES

[O-][O-].[Ba+2]

Depositor-Supplied Synonyms

BARIUM PEROXIDE, Barium binoxide, Barium dioxide, Barium superoxide, Barium peroxide (Ba(O2)), Barium oxide, per-, Bariumperoxid [German], Bariumperoxyde [Dutch], Dioxyde de baryum [French], Peroxyde de baryum [French], HSDB 396, Bario (perossido di) [Italian], EINECS 215-128-4, UN1449, Bariumperoxid, Bariumperoxyde, Dioxyde de baryum, Peroxyde de baryum, Bario (perossido di), Ba(O2), MolPort-003-925-965, Barium peroxide [UN1449] [Oxidizer], Barium peroxide [UN1449] [Oxidizer], 1304-29-6, LS-24695, 16678-58-3, 55396-27-5, 61233-09-8

Removed Synonyms

CID14773

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