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Iron

Iron Suppliers list
Company Name:J & K SCIENTIFIC LTD.  
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Products Intro: Product Name:Iron, powder
CAS:7439-89-6
Purity:99% Package:100g,2.5KG,500G
Company Name:Meryer (Shanghai) Chemical Technology Co., Ltd.  
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Products Intro: Product Name:Iron
CAS:7439-89-6
Purity:98% Package:500g Remarks:AAA125316
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Products Intro: Product Name:Iron powder, reduced, 99%
CAS:7439-89-6
Package:250g Remarks:A10411
Company Name:Beijing dtftchem Technology Co., Ltd.  
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Products Intro: CAS:7439-89-6
Purity:AR
Company Name:BeiJing Hwrk Chemicals Limted  
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Products Intro: Product Name:Iron
CAS:7439-89-6
Purity:99.99% Package:50g Remarks:50g, 800
Iron Chemical Properties
Melting point 1535 °C(lit.)
Boiling point 2750 °C(lit.)
density 7.86 g/mL at 25 °C(lit.)
Fp >230 °F
storage temp. -70°C
solubility H2O: soluble
form wire
Water Solubility INSOLUBLE
Merck 13,5109
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.
CAS DataBase Reference7439-89-6(CAS DataBase Reference)
NIST Chemistry ReferenceIron(7439-89-6)
EPA Substance Registry SystemIron(7439-89-6)
Safety Information
Hazard Codes F,Xi
Risk Statements 36/38-11-17
Safety Statements 26-16-33
RIDADR UN 3264 8/PG 3
WGK Germany 1
RTECS NO4565500
HazardClass 8
PackingGroup III
HS Code 72052900
Hazardous Substances Data7439-89-6(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Iron Filings English
SigmaAldrich English
ACROS English
ALFA English
Iron Usage And Synthesis
Identification testThe same as "carbonyl iron (01217)"
Content analysisAccurately weigh approximately 200 mg of the sample and transfer it into a 300 ml Erlenmeyer flask, add 50 ml of a dilute sulfuric acid solution (TS-241). Use a plug containing a Bunsen valve (the production method is to insert a glass tube connected with a short segment of rubber tube to the plug. The side of the rubber tube has a long slit while the other side is inserted of a glass rod so that the gas can escape and the air can’t enter). The solution was heated on a steam bath to dissolve the iron. After cooling, dilute with 50 ml of freshly boiled and cooled water. Add 2 drops of the test solution (TS-162) to 0.1 mol / L
Apply cerium sulfate titration to until the red color becomes light blue color. Each ml of 0.1mol / L of high cerium sulfate are equivalent to 5.585 mg of iron (Fe).
The method is the same as that of "reduced iron (01219)”.
ToxicityGRAS (FDA, § 184.1375, 2000); Inhalation of dust can cause pneumoconiosis. Operation personnel should wear overall, wear dust masks and other labor insurance products. Production equipment should be closed, the workshop should be well-ventilated. Be sure to pay attention to dust protection.
Usage limitGB 14880-94 (mg / kg, calculated on elemental iron): grains and their products 24 to 48; beverages 10 to 20; dairy products, infant food 60 to 100; salt, sandwich sugar 600 ~ 1200. GB 14880-94: the same as "01218, electrolytic iron."
FDA, § 184.1375: GMP only.
GB 2760-2001: Ready-to-eat breakfast cereal 35 ~ 105mg / kg (in terms of Fe).
Standard for Maximum Allowable Amount
Name Food allowed to use it as additive Function of additive Maximal allowable usage(g/kg) Maximal allowable residue(g/kg)
Iron powder Food Processing aid in the food industry             / It should be generally removed before the completion of the final product except in cases where specific amount has been documented
Chemical propertiesGray metal; It should be dissolved in hydrochloric acid, sulfuric acid and dilute nitric acid.
UsesIt is used for pharmaceutical, pesticide, powder metallurgy and so on;
It can be used as a hot hydrogen generator, gel propellant, combustion activator, catalyst, water cleaning adsorbent, sintered active agent, etc;used for powder metallurgy products, all kinds of mechanical parts and components products, cemented carbide products, etc;
It can be used as a reducing agent as well as being used for iron salt manufacturing and electronics industry;
It can be used as nutritional supplements (iron fortifier),for casting,or as reducing agent;
It can be used in the electronics industry, powder metallurgy.
FHY80.23 is mainly used for oil bearing, FHYl00.25 for medium and low density mechanical parts, FHYl00.27 for high-density mechanical parts.
PreparationReduction method: the ferric hydroxide was crashed into fine powder after being dried at 110 ~ 120 ° C, followed by being sent into the porcelain tube or refractory glass tube in the form of thin layer. The tube is further put into the electric furnace. First send dry hydrogen stream through to discharge the air in the tube. Continue to send into the hydrogen gas and the tube is gradually heated to magenta and highly hot. The reduction was carried out until no more water was generated in the tube. After the tube was completely cooled in a hydrogen stream, we can obtain the iron powder product. The reaction equation is as below:
2Fe (OH) 3 + 3H2→ 2Fe + 6H2O
It can be obtained through the hydrogen reduction reaction of high purity iron oxide and iron oxalate as well as derived from the deposition of the ferrous salt solution electrode.
MiningChina pyrrhotite-type sulfur pyrite mine has less of mining hills resources. Take the MinXi mine in the DaTian City, Fujian Province and Zhangjiagou mine in Dandong City, Liaoning Province as the representatives; both of them are underground mining mines. The former applies the Housing pile mining method while the later one uses the section mining method. The pit mining process is the same as the method of "phosphate rock." Beneficiation methods include flotation process and flotation - magnetic combined process.
Chemical Propertiesgrey crystalline powder, rod or chips
General DescriptionA gray lustrous powder. Used in powder metallurgy and as a catalyst in chemical manufacture.
Air & Water ReactionsHighly flammable. May react with water to give off hydrogen, a flammable gas. The heat from this reaction may ignite the hydrogen.
Reactivity ProfileIron is pyrophoric [Bretherick, 1979 p. 170-1]. A strong reducing agent and therefore incompatible with oxidizing agents. Burns in chlorine gas [Mellor 2, Supp. 1:380 1956]. Reacts with fluorine with incandescence [Mellor 13:314, 315, 1946-1947].
Health HazardFire may produce irritating and/or toxic gases. Contact may cause burns to skin and eyes. Contact with molten substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.
Fire HazardFlammable/combustible material. May be ignited by friction, heat, sparks or flames. Some may burn rapidly with flare burning effect. Powders, dusts, shavings, borings, turnings or cuttings may explode or burn with explosive violence. Substance may be transported in a molten form at a temperature that may be above its flash point. May re-ignite after fire is extinguished.
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