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Iron

CAS number : 7439-89-6

Molecular weight :55.85

Molecular formula/chemical symbol :Fe

Description :

The gray to black amorphous fine grained or powder, pure iron with silver metallic luster; A great micro luster, soluble in dilute acid, insoluble in water, exposed to air and moisture easy oxidation. Have good ductility, conductive, and thermal conductivity; Density of 7.86 g / 3 cm; Melting point is 1535 , boiling point for 2750 ; Specific heat capacity for 460 j/Kg * ); Pure iron to soft, but if it is iron and other metal alloy or mixed with impurity iron, lowering of melting point, hardness will increase, and the concrete depends on the nature of the impurities or alloy. Iron is the earth‘s most widely distributed one of the metal, the element distribution in a sequence of the fourth, second only to oxygen, silicon and aluminum.

USES :

In the chemical production and laboratory work, which is usually used for high quality reductant. Mainly used for chemical catalysts, precious metal reduction, alloy addition, copper substitution, etc.; Iron soluble in hot or a thick nitric acid, generating ferric nitrate and release nitrogen oxide. In concentrated nitric acid or cold concentrated sulfuric acid, iron surface to form a layer of oxidation film and passivation.

Keywords:Surface treatment chemicals

Report :

Product name

Ferrum

CAS: 7439-89-6

Apearance

The gray to black amorphous fine grained or powder, pure iron with silver metallic luster

chemical formula

Fe

items

Analytically pure (AR)

chemically pure (CP)

content(Fe) %  ≥

99.0

98.0

Sulfuric acid insolubles ,%  ≤

0.1

0.5

hydrotrope ,% ≤

0.03

0.1

The search is actually very

0.06

0.15

Nitrogen (N meter), %  ≤

0.005

0.01

(Cu) %

0.005

0.02