K(O2)
K(O2) - Names and Identifiers
| Name | potassium superoxide |
| Synonyms | K(O2) burntpotash cacinedpotash potassium superoxide Potassium oxide super PotassiuM dioxide powder potassium molecular oxygen Potassium dioxide chunks, 5-10 mm PotassiuM Superoxide, Uncatalyzed Granules |
| CAS | 12030-88-5 |
| EINECS | 234-746-5 |
| InChI | InChI=1/K.O2/c;1-2/q+1 |
K(O2) - Physico-chemical Properties
| Molecular Formula | KO2* |
| Molar Mass | 71.1 |
| Density | 2,14 g/cm3 |
| Melting Point | 400 °C |
| Water Solubility | reacts |
| Solubility | Soluble in ethanol and ether. |
| Vapor Presure | 322000mmHg at 25°C |
| Appearance | powder |
| Specific Gravity | 2.14 |
| Color | Yellow-green |
| PH | >7 (H2O, 20℃) |
| Storage Condition | Store at +15°C to +25°C. |
| Stability | Stable, but reacts violently with water. Incompatible with moisture, alcohols, strong reducing agents, strong acids, finely powdered metals. |
| Sensitive | Air & Moisture Sensitive |
| Physical and Chemical Properties | Yellow cubic Flake. |
K(O2) - Nature
Open Data Verified Data
potassium superoxide is a calcium carbide type powder Crystal, orange crystal, about 145 C decomposition, moisture absorption, paramagnetic. Melting Point 380 C (150 C decomposition). Density 2. 14 xl03kg/m3. At room temperature, the crystal of K02 is tetrahedral structure. At high temperature, the crystal of K02 has a cubic structure, that is, similar to the structure of NaCl, but the position of CI-is replaced by 02, that is, the center point of the bond connecting 2 oxygen atoms in 02-is located at the position of CI. It is a golden yellow solid powder when melted well at 450-500 °c. Strong oxidant. Hygroscopicity is very strong, and water intense reaction decomposition of oxygen and alkaline peroxide solution. Reaction with moist carbon dioxide gas produces potassium carbonate and oxygen. It has a stronger ability to adsorb oxygen atoms than peroxides.
Last Update：2025-06-10 22:55:16
K(O2) - Preparation Method
Open Data Verified Data
- Industrial process: potassium superoxide is prepared in stainless steel replacement kettle, with sodium metal replacement of potassium chloride to obtain more than 97% purity of potassium metal, the molten potassium is pressed and sent to a special spray gun to mix with the purified air and then injected into the oxidation furnace, which is generated by combustion at 230~250 °c.
- oxidation method: potassium metal is oxidized with compressed air from which oil, water and carbon dioxide are removed to obtain potassium superoxide.
Last Update：2025-06-07 19:20:19
K(O2) - Application
Open Data Verified Data
can be used as a source of oxygen for respiratory masks. For high-altitude flight or other need artificial oxygen source, such as can be used as spacecraft, submarine and other closed system of oxygen regeneration agent.
Last Update：2025-08-19 16:24:40
K(O2) - Safety
Open Data Verified Data
potassium superoxide is a kind of first-class oxidant, which can cause combustion and even explosion when exposed to flammable substances, organic substances, reducing agents, etc. When water or water vapor generates a lot of heat, the same explosion may occur! The warehouse is ventilated and dried at low temperature; It is stored separately from fuel and organic matter. The container shall be packed in an iron drum with explosion-proof device, and the barrel mouth shall be sealed. 50kg net weight per barrel. Package should be marked with "explosive. Should be stored in a dry, ventilated warehouse. The packaging shall be completely sealed and strictly moisture-proof. Transport should be protected from rain and sun exposure. When loading and unloading, it should be gently handled to prevent impact and packaging damage. Oxidant. GB 5.1 class 510110 UN NO.2466I IMDG CODE page 5176, Class 5 ^ 1. It is a Class I explosive. When there is a fire, it can be suppressed by sand and various kinds of fire extinguisher, but it is not possible to use water.
Last Update：2025-06-10 22:55:16
