The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Tourists and business trips have plummeted. On the booking website, there are a large number of air tickets for local routes with a price reduction of nearly 90% compared with the original price and only tens of yuan for a one-way trip.
In February, China's aviation industry recorded its largest single-month loss of 24.59 billion yuan, of which airlines lost 20.96 billion yuan.
Data from the Civil Aviation Administration of China showed that in February, the number of passengers traveling by air fell 84.5% year-on-year to 8.34 million.
The stagnation of the Asian aviation industry has brought volatility to Iron oxide Fe3O4 ,Iron oxide Fe3O4 overview,Application of iron oxide Fe3O4,Iron oxide Fe3O4 price,Iron oxide Fe3O4 suppliers.
Iron oxide Fe3O4 overview
(Fe3O4) iron oxide can also be made into granules, lumps, powders, sputtering targets, tablets and nanopowders. Iron oxide is usually immediately available in most cases. High purity, submicron and nanopowder forms are contemplated. Provides additional technical, research and security (MSDS) information. Fe3O4 is formed by the Schikorr reaction. This reaction converts iron(II) hydroxide (Fe(OH)2) to iron(II,III) oxide (Fe3O4). Under anaerobic conditions, ferrous hydroxide (Fe(OH)2) is oxidized in water to form magnetite and molecular hydrogen. Skicor's response explains the process.
Production method of iron oxide Fe3O4
Hydrogen Reduction of α-Iron Oxide
Load the high-purity micro-powdered α-Fe2O3 into the pan, and the powder layer should not be too thick. After the disk was placed in the reaction tube, high-purity nitrogen gas was introduced to completely replace the air. Then, water-saturated hydrogen gas was slowly fed through a gas scrubber. The heating temperature is appropriately 300 to 400°C (for example, 330°C). After confirming that the reaction is completed (usually 1 to 3 hours), cool it down, stop sending hydrogen, and replace it with nitrogen, then take out the sample. Insufficient amount of water vapor, excessive heating temperature or excessive reduction will generate FeO, so attention must be paid. The amount of water vapor can be increased by increasing the temperature of the gas scrubber (40-60°C is more suitable). Using needle-shaped α-FeO(OH) as the starting material, α-Fe2O3 can be obtained by heating and dehydration. With this α-Fe2O3, acicular ferric oxide particles can be obtained. Black audio tapes use this iron tetroxide as a tape recording medium.
The iron filings are reacted with sulfuric acid to obtain ferrous sulfate, and then caustic soda and iron oxide are added to carry out an adduct reaction at 95-105° C. to generate ferric oxide, which is filtered, dried and pulverized to obtain iron oxide black.
Slow oxidation of ferrous hydroxide
The aqueous solution containing ferrous hydroxide precipitates is heated to above 70°C and slowly oxidized to obtain ferric oxide powder composed of fairly uniform regular octahedral or cubic single crystal particles with an edge length of about 0.2 μm. Air delivery bubbles can also be used as a means of oxidation. Oxidants like KNO3 can also be used.
If the operation is proficient, the ferric tetroxide with the chemical composition of Fe3.00O4.00 can be obtained. The Harber method adds 220g 20% ammonia water to 2.2L FeSO4·7H2O aqueous solution, and boils it under the condition of cutting off the air (you can use a capillary equipped with a capillary tube). round-bottomed flask), add a concentrated aqueous solution containing 25.5 g of KNO3 to the boil.
The ferrous sulfate solution is oxidized by adding alkali or the solution of ferric salt and ferrous salt is mixed in a certain proportion and then precipitation by adding alkali.
Application of iron oxide Fe3O4
Iron oxide Fe3O4 powder, commonly known as iron oxide black, magnetite and iron oxide black, can be used in many different fields, such as: iron oxide (II, III) as black pigment, also known as mars black.
Used as a catalyst in the Haber process.
For water gas shift reaction.
In contrast, Fe3O4 nanoparticles are used in MRI scans.
It prevents the steel from rusting.
It is an ingredient in aluminates, which are used to cut steel.
Iron oxide Fe3O4 powder is ferromagnetic. If the radius of the particles formed is on the nanometer scale, they are called ferromagnetic particles.
1. Iron oxide Fe3O4 powder can produce magnetic recording materials, high gradient magnetic separators, wave absorbing materials, special coatings, etc.
2. Iron oxide Fe3O4 powder is widely used as the carrier of various pharmaceutical ingredients to form a magnetic targeted drug delivery system; it is used for the separation of magnetic immune cells, nuclear magnetic resonance imaging and so on.
3. For precision instruments, gas sealing, vacuum sealing, etc.
Iron oxide Fe3O4 price
The price of iron oxide Fe3O4 powder will change randomly with the production cost, transportation cost, international situation and the market supply and demand of iron oxide Fe3O4 powder. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for iron oxide Fe3O4 powder, please feel free to send an inquiry to get the latest price of iron oxide Fe3O4 powder
Iron oxide Fe3O4 suppliers
As a global supplier of iron oxide Fe3O4, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity target materials, functional ceramics and structural devices, and provides OEM services.
|Technical Parameter of Iron Oxide Fe3O4 Powder：|
|Moisture content ≤﹪||0.7||0.7|
|Water Soluble ≤﹪||0.4||0.4|
|Residue On Sieve(325mesh)||0.3||0.3|
|Oil absorption (ml/100g)||21||21|
|Tinting strength ﹪||99||99|
The United States urges the U.N. Security Council to impose additional sanctions on North Korea in response to its latest ballistic missile launch, including a ban on tobacco and oil exports to North Korea and a blacklist of the Lazarus hacking group.
The United States circulated the draft to the 15 members of the Security Council this week. It was not immediately clear if or when a vote would take place. A resolution requires nine "yes" votes and no vetoes from Russia, China, France, Britain, or the United States.
Russia and China have already voiced opposition to tightening sanctions in response to Pyongyang's launch of an intercontinental ballistic missile last month -- the first since 2017.
U.S. and South Korean officials and analysts also say there are growing indications that North Korea may soon conduct its first nuclear weapons test since 2017, too.
The U.S. -drafted U.N. resolution would expand the ban on ballistic missile launches to include cruise missiles or "any other delivery system capable of delivering a nuclear weapon."
The deal would halve crude oil exports to North Korea to 2 million barrels a year and refined oil exports to 250,000 barrels a year. The resolution also seeks to ban North Korea's export of "fossil fuels, mineral oils, and their distilled Iron oxide Fe3O4 ,Iron oxide Fe3O4 overview,Application of iron oxide Fe3O4,Iron oxide Fe3O4 price,Iron oxide Fe3O4 suppliers are estimated to be influenced by international political situation changes.
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