Identification | Back Directory | [Name]
Peroxydicarbonic acid, dipotassium salt | [CAS]
589-97-9 | [Synonyms]
Peroxydicarbonic acid, dipotassium salt | [Molecular Formula]
C2K2O6 | [MOL File]
589-97-9.mol | [Molecular Weight]
162.14 |
Chemical Properties | Back Directory | [Melting point ]
200–300℃ [HAW93] | [form ]
or blue powder | [color ]
orange | [Water Solubility ]
1 part/15 parts cold H2O; evolves O2 in hot H2O [MER06] | [CAS DataBase Reference]
589-97-9 |
Hazard Information | Back Directory | [Chemical Properties]
white, granular mass; sensitive to light [MER06] | [Physical properties]
The monohydrate consists of a white granular mass; starts melting above 200°C; soluble in water, about 15 g/100mL at 20°C; decomposes in boiling water, evolving oxygen. | [Uses]
Potassium percarbonate is used in photography under the name “Antihypo” for removing the last traces of thiosulfate from film and paper. It is a strong oxidizing agent in certain chemical analysis; and in microscopic identification of tubercle bacilli. | [Preparation]
Potassium percarbonate can be prepared by electrolysis of potassium car-bonate, K2CO3. |
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