Ironpowderelectrolytic
Iron
CAS: 7439-89-6
Molecular Formula: Fe
Ironpowderelectrolytic - Names and Identifiers
Ironpowderelectrolytic - Physico-chemical Properties
| Molecular Formula | Fe |
| Molar Mass | 55.85 |
| Density | 7.86 g/mL at 25 °C(lit.) |
| Melting Point | 1535°C(lit.) |
| Boling Point | 2750°C(lit.) |
| Flash Point | >230°F |
| Water Solubility | INSOLUBLE |
| Solubility | H2O: soluble |
| Appearance | Powder |
| Specific Gravity | 7.86 |
| Color | Silvery |
| Odor | Odorless |
| Exposure Limit | ACGIH: TWA 2 mg/m3OSHA: TWA 15 mg/m3; TWA 5 mg/m3NIOSH: IDLH 1250 mg/m3; TWA 2.5 mg/m3 |
| Merck | 13,5109 |
| Storage Condition | 2-8°C |
| Stability | Stable. Reacts slowly with moist air and water. Dust may form an explosive or combustible mixture with air. Incompatible with organic acids, strong oxidizing agents, water, mineral acids. |
| Sensitive | Moisture Sensitive |
| Physical and Chemical Properties | Density 7.86 melting point 1535°C boiling point 3000°C water-soluble INSOLUBLE |
| Use | For casting |
Ironpowderelectrolytic - Risk and Safety
| Risk Codes | R36/38 - Irritating to eyes and skin. R11 - Highly Flammable R17 - Spontaneously flammable in air |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S33 - Take precautionary measures against static discharges. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3264 8/PG 3 |
| WGK Germany | 1 |
| RTECS | NO4565500 |
| TSCA | Yes |
| HS Code | 72052900 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 oral in rat: 30gm/kg |
Ironpowderelectrolytic - Upstream Downstream Industry
| Raw Materials | Iron |
| Downstream Products | Ferrous sulfate Sodium ferrocyanide Copper(II) oxide 3-Chloro-2-methylaniline 5-Chloro-2-methylaniline Iron (III) oxide monohydrate |
Ironpowderelectrolytic - Nature
Open Data Verified Data
gray-black amorphous powder. Commodities usually contain other atoms, such as C, P, Si, S, and Mn. d 7. 86, melting point 1 535 C I Boiling point 3000 C. Insoluble in cold water, hot water, alkali, ethanol and ether. Soluble in hydrochloric acid, sulfuric acid and dilute nitric acid, insoluble in concentrated acid, dilute alkali solution, ether. Open humid air or water is easy to oxidation. Fuming nitric acid can make iron. Passivation ", the formation of an oxide film on the surface prevents it from continuing to dissolve in the acid.
Last Update：2024-01-02 23:10:35
Ironpowderelectrolytic - Preparation Method
Open Data Verified Data
The iron hydroxide was dried at 110 to 120 ° C. And pulverized to a fine powder, and then placed in a porcelain tube or refractory glass, and the tube was placed in an electric furnace. The dry hydrogen flow was first introduced into the air in the discharge pipe, and the hydrogen was continued and the pipe was gradually heated to deep red heat until no moisture was generated in the pipe. After cooling, reduced iron powder was obtained.
Last Update：2022-01-01 09:02:05
Ironpowderelectrolytic - Use
Open Data Verified Data
used as a reducing agent. For the electronics industry, Powder Metallurgy and the production of iron salts.
Last Update：2022-01-01 09:02:06
Ironpowderelectrolytic - Safety
Open Data Verified Data
inhalation of dust can cause pneumoconiosis. Staff should be protected. If the skin and eyes are touched, they should be immediately rinsed with flowing water. The working environment should have good ventilation conditions.
Last Update：2022-01-01 09:02:06
Ironpowderelectrolytic - Reference Information
| resistivity | 9.71 ***-cm |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | reduced iron powder has been produced for nearly a hundred years. The production of iron powder in China began in 1956, and the production of reduced iron powder began in 1958. Mainly used in powder metallurgy industry, electrode manufacturing, pharmaceutical, food additives and so on. The quality index of iron powder includes chemical composition, particle size composition, apparent density, fluidity, compressibility, etc. Reduction of iron powder is the popular use of coke, charcoal, anthracite, water gas, conversion of natural gas, decomposition of ammonia, hydrogen and other solid or gas reducing agent reduction of iron concentrate, rolling iron scale and other iron oxide preparation of sponge-like iron. As the main raw material of powder metallurgy products, reduced iron powder has an important influence on the properties of powder metallurgy products. |
| application field | iron powder soft magnetic material based on iron powder can be obtained by press forming and heat treatment process, which is widely used in electrical engineering, power and electronic equipment, such as electromagnet iron core, circuit breaker iron core, transformer iron core, motor stator and rotor iron core, in recent years, the rapid development of PC, power supply and other products has greatly led to the demand for this material. |
| Application | ultrafine iron powder is one of the basic raw materials in powder metallurgy industry, therefore, it has special properties such as electric, magnetic, optical, catalytic, adsorption and chemical reactivity. Therefore, it is widely used, mainly for powder metallurgy, manufacturing mechanical parts, production of friction materials, friction reducing materials, super hard materials, magnetic materials, lubricants and their products. Secondly, iron powder is widely used in chemical industry, cutting, Fever material, electrode and so on. used in pharmaceutical, pesticide, powder metallurgy, etc. used as hot hydrogen generator, Gel propellant, combustion activator, Catalyst, water cleaning adsorbent, sintering active agent, etc. mainly used for powder metallurgy products, various mechanical parts products, hard alloy materials products, etc. Nutritional supplements (iron fortifier). see pyrite ". used in electronic industry, Powder Metallurgy. Used as a reducing agent. FHY80.23 is mainly used for oil bearing. FHYl00.25 is mainly used for medium and low density mechanical parts. FHYl00.27 is mainly used for high-density mechanical parts. for casting for ICP-AES, AAS, AFS, ICP-MS, ion chromatography, etc. Standard solutions were used for titration analysis. Calibration instruments and devices; Evaluation methods; Working standards; Quality assurance/quality control; Other. |
| preparation process | The technical scheme used is as follows: the ferrous oxalate powder with 150-300 mesh sieve prepared by liquid phase synthesis is put into a fluidization furnace, and a gas of a weak reducing atmosphere composed of 1-5% reducing gas and 95-99% inert gas is introduced into the fluidization furnace, the ferrous oxalate powder is subjected to fluidization movement in a fluidization furnace under the action of an air flow; The temperature in the furnace is heated to 350-500 ° C. And the temperature is maintained. After 1-3 hours of reaction, ultrafine iron powder can be obtained. |
| identification test | is identical to "carbonyl iron (01217). |
| content analysis | accurately weigh about 200mg of sample, transfer into a TS-241 ml Erlenmeyer flask, add 50ml dilute sulfuric acid solution (), with the Bensheng valve (Bensheng valve manufacturing method is to insert a glass tube with a short section of rubber tube on the plug, the side of the rubber tube with a long and narrow incision, the other end of the insertion of a glass rod, the flask was closed by a plug that allowed gas to escape and air not to enter. Heat on the Steam Bath until the iron is dissolved, dilute with 50ml of freshly boiled and cooled water after cooling, add 2 drops of phenanthroline test solution (TS-162), titrated to red to light blue with 0.1mol/L cerous sulfate. Per ml. 0.1mol/L cerium sulfate is equivalent to iron (Fe)5.585mg. |
| hazard | inhalation of dust can cause pneumoconiosis. Production personnel should wear work clothes, dust masks and other labor protection products. Production equipment should be closed, the workshop is well ventilated, should pay attention to dust. |
| toxicity | GRAS(FDA,§ 184.1375,2000). |
| Use limit | GB 14880-94(mg/kg, calculated as elemental iron): cereals and their products 24-48; beverages 10~20; Dairy products, infant food 60~100; Salt, sandwich sugar 600~1200. FDA,§ 184.1375: GMP-limited. GB 2760-2001: ready-to-eat breakfast cereals 35-105mg/kg (calculated as Fe). |
| production method | reduction method iron hydroxide is dried at 110~120 ℃ and then ground into fine powder, place a porcelain tube or refractory glass tube in a thin layer and place the tube in an electric furnace. The dry hydrogen stream was first introduced into the air in the discharge tube, and the human hydrogen was continued and the tube was gradually heated to deep red heat. The reduction is carried out until no more moisture is generated in the tube. The tubes were allowed to cool completely in a stream of hydrogen to produce a finished iron powder. Its 2Fe(OH)3 3H2 → 2Fe 6H2O there are few pyrrhotite-type pyrite mines in China, which can be represented by Mingxi mine in Datian county of Fujian province and zhangjiagou mine in Dandong city of Liaoning province. Both are underground mining mines. The former room pile mining method, the latter with segmented mining method. The process flow of pit mining is the same as that of phosphorite ". Mineral processing methods include flotation and flotation-magnetic separation combined process. obtained by hydrogen reduction of high-purity iron oxide or iron oxalate. obtained by electrode deposition from ferrous salt solution. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:21:28
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CAS: 7439-89-6
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Raw Materials for Ironpowderelectrolytic
Downstream Products for Ironpowderelectrolytic
Ferrous sulfate
Sodium ferrocyanide
Copper(II) oxide
3-Chloro-2-methylaniline
5-Chloro-2-methylaniline
Iron (III) oxide monohydrate
Sodium ferrocyanide
Copper(II) oxide
3-Chloro-2-methylaniline
5-Chloro-2-methylaniline
Iron (III) oxide monohydrate