SODIUM
Sodium
CAS: 7440-23-5
Molecular Formula: Na
SODIUM - Names and Identifiers
| Name | Sodium |
| Synonyms | Sodium Sodium metal Sodium ingot Sodium Metals Sodium solution Sodium dispersion Sodium standard solution |
| CAS | 7440-23-5 |
| EINECS | 231-132-9 |
| InChI | InChI=1/Na |
SODIUM - Physico-chemical Properties
| Molecular Formula | Na |
| Molar Mass | 22.9898 |
| Melting Point | 98 |
| Water Solubility | REACTS |
| Physical and Chemical Properties | A flexible and ductile metal with silver-white properties. It belongs to the cubic crystal system. melting point (97.81±0.03)℃ boiling point 882.9 ℃ relative density 0.97 solubility insoluble in ether and benzene. Reaction |
| Use | Used as reducing agent, Catalyst, petroleum desulfurization agent, also used in the preparation of sodium peroxide, sodium amino acid, etc |
SODIUM - Risk and Safety
| Hazard Symbols | F - Flammable C - Corrosive  |
| Risk Codes | R34 - Causes burns |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S8 - Keep container dry. |
| UN IDs | UN 1428 |
SODIUM - Upstream Downstream Industry
SODIUM - Nature
Open Data Verified Data
silvery white soft and ductile metal. It belongs to the cubic crystal system. The relative density was 0. 97. Melting point 97.8 °c. Boiling point 892 °c. Alcohol decomposition, insoluble in ether and benzene. React vigorously with water to produce sodium hydroxide and hydrogen, or burn (yellow flame) or explosion. Room temperature
It is waxy and easy to use for incision. Its vapor is purple, yellow at high temperature, and has excellent heat transfer. The chemical properties are very active, and can react with many organic and inorganic substances; And metal or non-metal can be directly combined, such as lead and lead sodium alloy, and Mercury Sodium amalgam and so on. Rapid oxidation in air. It is a yellow flame when burning. Contact with the skin can cause burns.
Last Update：2024-01-02 23:10:35
SODIUM - Preparation Method
Open Data Verified Data
sodium metal production process technology mainly includes caustic soda melting electrolysis method, salt melting electrolysis method and electrolysis of sodium amalgam method, etc. At present, most of them are produced by salt melting electrolysis method, and the caustic soda melting electrolysis method has special needs, in the case of small demand, the electrolytic sodium amalgam method has been eliminated.
- salt melting and electrolysis method: Electrolytic sodium chloride to make metal sodium is 33% ± 2% of sodium chloride, 2% of strontium chloride, 28% of calcium chloride, 2% of soil, barium chloride 15% ± 2% Composition of Quaternary electrolyte. After drying and dehydration, the refined salt is mixed into A quaternary electrolyte and added to the electrolytic cell for electrolysis. The basic data are as follows: cell current intensity 24000A, cell voltage 6.5~7.5V, cathode current density 0.97A/ CII12, the anode current density of 1A/cell temperature of 590~630 deg C. Upon electrolysis, sodium is produced on the cathode surface and chlorine is produced on the anode surface. The chlorine gas is collected by a barrel-shaped collector immersed in the electrolyte above the anode. Sodium is collected by an inverted ring-shaped horseshoe trough immersed in the electrolyte, and flows to the external receptacle (sodium tank) with nitrogen protection through an ascending tube connected to the Horseshoe trough; Then put in a crude sodium container, the sodium is then melted and clarified at a temperature of 120 to 150 ° C. To remove impurities. The supernatant is placed in a sodium vessel and the sodium is recovered from the lower residue by distillation. The refined sodium is formed to obtain the finished metal sodium product.
- electrolytic caustic soda method: a binary electrolyte composed of sodium hydroxide and sodium carbonate may be used for preparing metal sodium by electrolytic caustic soda. The sodium carbonate is dried first, and then the caustic soda is melted, then the two are mixed and settled, and added to the electrolytic cell for electrolysis. The basic data are: the current intensity of the electrolytic cell is 2500A, the cell voltage is 4.5~5V, the anode current density is 0.89 A/crn2, and the cathode current density is 0.94-1. 03A/ cm2. The temperature of the electrolytic cell was 285 to 305. The crude sodium obtained by electrolysis is sent to a refiner, and the sodium is melted and clarified at 110 N120 ° C. To remove impurities. The supernatant is put into a sodium container, and the refined sodium is molded to obtain a finished metallic sodium product.
Last Update：2022-01-01 11:06:22
SODIUM - Use
Open Data Verified Data
sodium metal is mainly used in the production of lead-containing gasoline additives and petroleum desulfurizers, oxidants, bleaching agents, dyes, pesticides, pharmaceutical intermediates, catalysts, perfumes, sodium compounds used in the production of organic compounds. Metallurgical industry for the reduction of titanium, zirconium and other metal oxides. The use of metal sodium better conductivity, cable can be manufactured. The addition of aluminum can increase the hardness for the manufacture of vehicle bearing alloys. Electrical light sources are industrially used in the manufacture of monochromatic light source sodium lamps. The pharmaceutical industry is used to produce xilisheng, vitamin B1, caffeine and other medicinal products. It is also used in the synthesis of indigo dyes and dye intermediates, and is also used as a catalyst for the synthesis of rubber. The atomic energy industry is used as a coolant in a high-rate growth furnace for atomic energy. Chemical Sodium azide is mainly produced from metallic sodium, and its biggest use is to produce air bags. In addition, sodium azide is also used in the production of a variety of organic and inorganic synthesis. Sodium Sulfur battery is a kind of high temperature 300~350 ℃ battery, compared with the commonly used lead battery, its superiority is much larger. In the use of nuclear energy, sodium metal can be used as a coolant in a nuclear reactor.
Last Update：2022-01-01 11:06:21
SODIUM - Safety
Open Data Verified Data
It belongs to class I water-burning articles, risk code number: GB 4.3. UN No. 1429 (immersed in kerosene) I IMDG CODE P. 4360, Class 3. Chemical reactivity is very high, in oxygen, chlorine, fluorine, bromine vapor will burn. When water or moisture reacts strongly to release hydrogen, a large amount of heat, causing combustion or explosion. Exposure of metallic sodium to air or oxygen can burn itself and cause an explosion of molten matter to splash. Reacts vigorously with halogens, phosphorus, many oxides, oxidants, and acids. It is a yellow flame when burning. Evaporation begins at 100 °c and the vapor can attack the glass. After the sodium ingot is dipped with No. 15 white oil, it is packed in a special round large-mouth iron drum with two-layer polyethylene plastic bags and sealed with a sealing cover. The iron drum contains kerosene or paraffin oil, and the oil surface must be submerged in metal sodium, 40kg net weight per barrel. (Sodium blocks in metal foil or asbestos paper or other suitable fire protection material, each containing no more than 3g of sodium, and packaged in any container. Its net weight does not exceed 50g, not applicable to the provisions of this rule). Should be stored in a cool, ventilated, dry place. It is advisable to store it in a special warehouse. Pay attention to moisture and sun exposure. It is necessary to cover the rain-proof cloth when the car is transported, and the rain-proof performance of the box car is required for the train transport. Handling should be carried out with care. Inverted and strong vibration of the packaging barrel is strictly prohibited. Storage period 1 year. On the upper respiratory tract mucosa has a stimulating effect, engaged in the production of metal sodium workers, will feel Nausea, heartburn, upper abdominal pain I can also appear nervous and digestive system dysfunction. When in contact with moist skin or clothing, it can fire and can cause burns. Contact with the skin easily cause burns. It is dangerous to fall into the eyes and mucous membranes. Production workers should wear work clothes coated with nylon and other protective appliances, and apply neutral and hydrophobic protective ointment on the skin. Sodium metal should be protected from contact with moist air and water. Work should be carried out in a well-ventilated, clean, dry, open area. Smoking is strictly prohibited at work site. Pay attention to personal hygiene. Fire, dry sand, dry powder, asbestos fire. Foam or carbon dioxide fire retardants are not permitted. Water is strictly prohibited.
Last Update：2022-01-01 11:06:23
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SODIUM
CHLORODIFLUOROACETIC ACID SODIUM
1-hydroxycyclopropanecarboxylate
氯酸金
17318-03-5
碘丙烯
抗氧剂 LK-1081
邻甲苯酸
CHLORODIFLUOROACETIC ACID SODIUM
1-hydroxycyclopropanecarboxylate
氯酸金
17318-03-5
碘丙烯
抗氧剂 LK-1081
邻甲苯酸
Raw Materials for SODIUM
Downstream Products for SODIUM
Sodium borohydride
Sodium binoxide
Sodium ethoxide
Trimethyl orthoformate
Triphenyltin Chloride
Triphenylphosphine
Sodium binoxide
Sodium ethoxide
Trimethyl orthoformate
Triphenyltin Chloride
Triphenylphosphine