Sodium Peroxide

sodium peroxide

[′sōd·ē·əm pə′räk‚sīd] (inorganic chemistry) Na₂O₂ A fire-hazardous, white powder that yellows with heating; decomposes when heated; causes ignition when in contact with water; used as an oxidizing agent and a bleach, and in medicinal soap.

Sodium Peroxide

Na₂O₂, a peroxide-type compound of sodium that contains the O₂^2– anion. Pure sodium peroxide is a colorless powder, while the technical-grade product is a yellowish powder; the yellow tinge is due to an impurity, the superoxide NaO₂. The melting point is about 600°C. Sodium peroxide decomposes with the release of O₂ upon heating above 300°C.

When dissolved in water, sodium peroxide is hydrolyzed according to the reaction Na₂O₂ + 2H₂O = 2NaOH + H₂O₂. The reaction is accompanied by the release of heat and by partial decomposition of H₂O₂ to give H₂O and O₂. Sodium peroxide reacts with moist atmospheric carbon dioxide to release oxygen according to the equation 2Na₂O₂ + 2CO₂ = 2Na₂CO₃ + O₂; this reaction is used to regenerate air in enclosed spaces. Sawdust, cotton, oil, and paper ignite upon contact with sodium peroxide.

Sodium peroxide is obtained by the oxidation of sodium at about 300°C in dry air that is free of CO₂. It is used as a solid substitute for hydrogen peroxide in the bleaching of various materials and as a strong oxidizing agent in laboratory work.

单词	sodium peroxide
释义	sodium peroxide sodium peroxide n. A yellowish-white powder, Na₂O₂, used industrially as an oxidizing and bleaching agent and medically as a germicide, antiseptic, and disinfectant. sodium peroxide n (Elements & Compounds) a yellowish-white odourless soluble powder formed when sodium reacts with an excess of oxygen: used as an oxidizing agent in chemical preparations, a bleaching agent, an antiseptic, and in removing carbon dioxide from air in submarines, etc. Formula: Na2O2 Sodium Peroxide sodium peroxide [′sōd·ē·əm pə′räk‚sīd] (inorganic chemistry) Na₂O₂ A fire-hazardous, white powder that yellows with heating; decomposes when heated; causes ignition when in contact with water; used as an oxidizing agent and a bleach, and in medicinal soap. Sodium Peroxide Na₂O₂, a peroxide-type compound of sodium that contains the O₂^2– anion. Pure sodium peroxide is a colorless powder, while the technical-grade product is a yellowish powder; the yellow tinge is due to an impurity, the superoxide NaO₂. The melting point is about 600°C. Sodium peroxide decomposes with the release of O₂ upon heating above 300°C. When dissolved in water, sodium peroxide is hydrolyzed according to the reaction Na₂O₂ + 2H₂O = 2NaOH + H₂O₂. The reaction is accompanied by the release of heat and by partial decomposition of H₂O₂ to give H₂O and O₂. Sodium peroxide reacts with moist atmospheric carbon dioxide to release oxygen according to the equation 2Na₂O₂ + 2CO₂ = 2Na₂CO₃ + O₂; this reaction is used to regenerate air in enclosed spaces. Sawdust, cotton, oil, and paper ignite upon contact with sodium peroxide. Sodium peroxide is obtained by the oxidation of sodium at about 300°C in dry air that is free of CO₂. It is used as a solid substitute for hydrogen peroxide in the bleaching of various materials and as a strong oxidizing agent in laboratory work. sodium peroxide so·di·um pe·rox·ide used externally as a paste or soap. sodium peroxide n. A yellowish-white powder, Na₂O₂, used industrially as an oxidizing and bleaching agent and medically as a germicide, antiseptic, and disinfectant.
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sodium peroxide

sodium peroxide

sodium peroxide

Sodium Peroxide

sodium peroxide

Sodium Peroxide

sodium peroxide

so·di·um pe·rox·ide

sodium peroxide