Name | Sodium binoxide |
Synonyms | Sodium binoxide SODIUM PEROXIDE sodioperoxysodium disodium dioxidanediide SODIUM PEROXIDE GRANULES Sodium Peroxide, Reag. ISO SodiuM peroxide, ACS reagent SODIUM PEROXIDE FOR SYNTHESIS SodiuM Peroxide, Granular, GR ACS SODIUM PEROXIDE GRANULAR GR FOR ANALYSIS |
CAS | 1313-60-6 |
EINECS | 215-209-4 |
InChI | InChI=1/2Na.O2/c;;1-2/q2*+1;-2/rNa2O2/c1-3-4-2 |
Molecular Formula | Na2O2 |
Molar Mass | 77.98 |
Density | 2.8 |
Melting Point | 460°C (dec.)(lit.) |
Boling Point | 657°C |
Flash Point | 657°C |
Water Solubility | Soluble in water, forming NaOH and H{2}O{2}. Soluble in acid. Insoluble in alkali. |
Solubility | Soluble in acid. Insoluble in alkali. |
Vapor Presure | 0.001Pa at 20℃ |
Appearance | beads (small) |
Specific Gravity | 2.805 |
Color | Yellow |
Odor | Odorless |
Merck | 14,8655 |
PH | 12.8 (100g/l, H2O, 20℃) |
Storage Condition | Store at +15°C to +25°C. |
Stability | Reacts violently with water. Contact with combustible materials may cause fire or explosion. Incompatible with strong oxidizing agents, alcohols, organic materials, acids, powdered metals. |
Sensitive | Air Sensitive & Hygroscopic |
Physical and Chemical Properties | Character: yellow-white powder. relative density 2.805 solubility: soluble in dilute acid, insoluble in alkali. |
Use | Can be used as a raw material for the manufacture of hydrogen peroxide, metal peroxide, perborate, can also be used as a strong oxidant, bleach, disinfectant and preservative |
Risk Codes | R8 - Contact with combustible material may cause fire R35 - Causes severe burns |
Safety Description | S8 - Keep container dry. S27 - Take off immediately all contaminated clothing. S39 - Wear eye / face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 1504 5.1/PG 1 |
WGK Germany | 1 |
RTECS | WD3450000 |
FLUKA BRAND F CODES | 3-9-23 |
TSCA | Yes |
HS Code | 2815 30 00 |
Hazard Class | 5.1 |
Packing Group | I |
light yellow powder, the goods are often made into small round particles. The melting point is about 675 ° C., the relative density is 2. 805, there are dihydrate and octahydrate. Density 2. 805G/cm3. It is easy to absorb moisture, when water or dilute acid will react to generate 02. With strong oxidation, can strongly oxidize some metals, and other flammable products placed together with the occurrence of combustion. In the molten state, almost no decomposition, but encountered Cotton, charcoal powder or aluminum powder can occur when the explosion, the use of caution. Easy to absorb moisture, and water or dilute acid, the formation of hydrogen peroxide, and violent heat. The generated hydrogen peroxide is unstable. The oxygen is released by immediate decomposition, so the oxygen is released by heating the sodium peroxide aqueous solution. Sodium peroxide with strong oxidants, such as potassium permanganate, the role also shows reducibility. It is insoluble in ethanol and can react with carbon dioxide in the air to release oxygen.
Metal sodium oxidation method molten metal sodium was preheated to 180 ° C. Or higher, and injected into the oxidation furnace at a pressure of 39. A high-speed compressed air flow of 2-44.1Pa oxidizes and Burns sodium at 300-350 ° C., and the generated sodium peroxide is gradually cooled to below 100 ° C. Through free sedimentation to obtain a sodium peroxide finished product.
can be used as oxygen supply agent, strong oxidant, with bleaching. Oxygen-increasing agent. Commonly used in the absence of air, such as mine, tunnel, diving, spacecraft, etc., can be exhaled carbon dioxide into oxygen, for people to breathe. Sodium peroxide is commonly used in industry as a bleaching agent, disinfectant, disinfectant, deodorant, oxidant, etc. Sodium peroxide is generally prepared by heating sodium metal to 300 °c in a stream of dry air that does not contain carbon dioxide. Due to its easy deliquescence and easy reaction with carbon dioxide, it must be stored in a sealed vessel.
It has a strong oxidation, in the molten state encountered Cotton, carbon powder, aluminum powder and other reducing substances will be an explosion. Therefore, it should be safe to store and not to contact with flammable materials. With small iron drum packing, barrel seal, every 10 barrels for a box (white iron leather), each box of 50kg net weight. Moisture-absorbing agent is placed in the box, the box is covered by a solid and dry wooden box, and an iron waist or iron wire is attached. The package shall be marked with "oxidant" and "corrosive substance. It is a Class I inorganic oxidant. Should be stored in a cool, ventilated, dry warehouse. It is preferable to store it in a specialized library. The container must be sealed to avoid direct sunlight, with special attention to moisture and water resistance. When loading and unloading should be light to prevent packaging damage. Keep the items in the inventory first-in first-out, found that the package rust, should be handled in a timely manner. Regular examinations should be strengthened. Risk code: GB 5.1 class 51002. UN0.1504; IMDG CODE P. 5184, category 1. Fire, can only be covered with dry sand, fine stone, absolutely not water l toxicity and protection: strong erosion of the skin and mucous membranes, splash into the eyes will cause vision loss, and even blindness. If you accidentally splash into the eyes, you should immediately rinse with water for 15min, and then admitted to the hospital for treatment. If it is spattered on the skin, it should also be quickly rinsed with plenty of water and neutralized with boric acid water. Staff should wear protective equipment for labor protection.
pH indicator color change ph range | 12.8 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
toxicity | is highly aggressive to skin and mucous membranes. splashing into eyes will cause vision loss and even blindness. If you accidentally splash your eyes, you should immediately rinse with water for 15 min, and then send them to the hospital for treatment. If it splashes on the skin, it should also be quickly rinsed with plenty of water and neutralized with boric acid water. Staff should wear labor protection equipment when operating. |
use | can be used as a raw material for manufacturing hydrogen peroxide, metal peroxide, perborate, and can also be used as a strong oxidant, bleaching agent, disinfectant and Preservative Used as a common analytical reagent and oxidant The main purpose is to be used as an oxygen generating agent, it is widely used in coal mines, chemical industry, diving, rescue, mountain surveying and mapping, high-altitude flight and other occasions requiring oxygen supply, as well as the composition of air regeneration agents in closed systems. widely used as strong oxidant, bleach, deodorant, disinfectant and preservative. It is used in the chemical industry to prepare other peroxides. its aqueous solution can be decolorized and bleached, oxidant, preservative, fungicide, deodorant and microanalysis. As a raw material for the manufacture of hydrogen peroxide, metal peroxides, and perborates in the chemical industry, it can also be used as a strong oxidant, bleaching agent, disinfectant and preservative. |
production method | sodium metal oxidation method preheats molten metal sodium to above 180 ℃, sprays high-speed compressed air flow with a pressure of 39.2~44.1 Pa into the oxidation furnace, oxidizes and burns sodium at 300~350 ℃, and gradually cools the generated sodium peroxide to below 100 ℃ through free sedimentation to obtain sodium peroxide finished product. Its 4Na O2 → 2Na2O2Na2O O2 → 2Na2O2 sodium superoxide raw powder and calcium oxide are crushed and mixed in proportion (93.5:6.5), and then pressed, crushed and sieved to obtain particles of certain size and strength. |
category | oxidant |
Explosive hazard characteristics | When exposed to water, oxygen and a large amount of heat are generated, and the amount is large and explosive |
flammability hazard characteristics | decomposes caustic soda and oxygen when exposed to water; combustible when exposed to organic matter, reducing agent, sulfur, phosphorus and other flammable materials; toxic sodium oxide smoke generated by combustion |
storage and transportation characteristics | warehouse is dry; light loading and unloading; separate from organic matter, reducing agent, sulfur and phosphorus flammable materials |
fire extinguishing agent | dry sand, dry soil, dry stone powder |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |