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Iron

Identification test Content analysis Toxicity Usage limit Standard for Maximum Allowable Amount Chemical properties Uses Preparation Mining

CAS No.7439-89-6
Chemical Name:Iron
Synonyms:Fe;gs6;3ZhP;eo5a;GS 6;Loha;pzh3;PzhO;Iron;EO 5A
CBNumber:CB8280013
Molecular Formula:Fe
Formula Weight:55.85
MOL File:7439-89-6.mol
Iron Property
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 Reference: 7439-89-6(CAS DataBase Reference)
NIST Chemistry Reference: Iron(7439-89-6)
EPA Substance Registry System: Iron(7439-89-6)
Safety
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 Data: 7439-89-6(Hazardous Substances Data)

Iron Chemical Properties,Usage,Production

Identification test
The same as "carbonyl iron (01217)"
Content analysis
Accurately 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)”.
Toxicity
GRAS (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 limit
GB 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 properties
Gray metal; It should be dissolved in hydrochloric acid, sulfuric acid and dilute nitric acid.
Uses
It 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.
Preparation
Reduction 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.
Mining
China 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 Properties
grey crystalline powder, rod or chips
General Description
A gray lustrous powder. Used in powder metallurgy and as a catalyst in chemical manufacture.
Air & Water Reactions
Highly flammable. May react with water to give off hydrogen, a flammable gas. The heat from this reaction may ignite the hydrogen.
Reactivity Profile
Iron 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 Hazard
Fire 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 Hazard
Flammable/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.
Iron Preparation Products And Raw materials
Raw materials
PIPE Ferric oxalate Iron oxide PYRITE
Preparation Products
3-CHLORO-4-PHENOXYANILINE 4-Aminobenzyl alcohol 2,5-Dimethoxy-4-chloroaniline N,N-Diethyl-1,4-phenylenediamine 2-Amino-4-methylbenzonitrile 2,5-Diaminoanisole sulfate 3,4-Difluoroaniline Ferrous gluconate 5-CHLOROQUINOLIN-8-AMINE 6-(1-PYRROLIDINYL)-3-PYRIDINAMINE 3,5-DICHLORO (1H)INDAZOLE Dibenz[b,f]azepine-5-carbonyl chloride 5-Fluoro-2-oxindole Ferric sulfate 2,4,5-Trichloroaniline 1-(5-aminopyridin-2-yl)piperidin-4-ol 5-Hydroxyquinoline 3-Amino-6-morpholinopyridine Ammonium iron(II) sulfate 3-AMINO-5-BROMO-PYRIDIN-2-OL HEXABROMOBENZENE 5-Chloro-2-methoxyaniline 2-METHYLIMIDAZO[4,5-C]PYRIDINE 2,5-Difluoroaniline Fenaminosulf 3-Bromonitrobenzene 2-(2-BROMOACETYL)THIOPHENE 5-Chloro-2-methylaniline 3-CHLOROANILINE HYDROCHLORIDE p-Aminobenzamide 2-CHLOROANILINE HYDROCHLORIDE 3-CHLORO-1H-INDAZOL-5-AMINE 4-AMINO-2,6-DIBROMOPYRIDINE Ferro-Silicon 2,4-Difluoro-3,5-dichloroaniline 5-FLUORO-2-METHYLBENZOTHIAZOLE 6-AMINO-3-BROMO (1H)INDAZOLE 2-Amino-5-chloro-4-methylbenzenesulfonic acid 1-(aminomethyl)cyclohexan-1-ol
Iron Suppliers      Global( 188)Suppliers     
SupplierTelFaxEmailCountryProdListAdvantage
Sinopharm Chemical Reagent Co,Ltd. 86-21-6321012386-21-63290778 86-21-63218885sj_scrc@sinopharm.comCHINA 10002 79
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833+86-10-82849933jkinfo@jkchemical.com;market6@jkchemical.comCHINA 96839 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing)+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)sh@meryer.comCHINA 40406 62
Alfa Aesar 400-610-6006; 021-67582000021-67582001/03/05saleschina@alfa-asia.comCHINA 30330 84
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、6027582086 (10) 60270825dtftchem@sina.comCHINA 3442 62
BeiJing Hwrk Chemicals Limted 4006990298;010-57411839;0757-86311057;021-51691807010-87653215;0757-86311057;021-55236763sales@hwrkchemical.comCHINA 13007 55
Energy Chemical 021-58432009 / 400-005-6266021-58436166-800info@energy-chemical.comCHINA 44200 61
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028+86-10-82967029sales@ouhechem.comCHINA 10825 60
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078,021-5042603086-021-50426522,50426273sales@jingyan-chemical.comCHINA 10106 60
Pure Chemistry Scientific Inc. 001-857-928-2050 or 1-888-588-9418001-617-206-9595sales@chemreagents.comUSA 9948 62
 
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