Home Categories Inorganic chemistry Lead oxide red
A5269512

Lead oxide red , AR,95% , 1314-41-6

Synonym(s):
Lead oxide, red;Lead(II,IV) oxide;Minium;Red lead oxide;Trilead tetraoxide

CAS NO.:1314-41-6

Empirical Formula: O4Pb3

Molecular Weight: 685.6

MDL number: MFCD00078491

EINECS: 215-235-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: 500 °C
Boiling point: 800°C
Density  9,1 g/cm3
vapor pressure  10 mm Hg ( 0 °C)
solubility  insoluble in H2O, ethanol; soluble in hotHCl
form  red powder
color  Orange
Water Solubility  Soluble in hydrochloric acid, glacial acetic acid and nitric acid and hydrogen peroxide. Insoluble in water and alcohol.
Merck  14,5425
crystal system square
Space group P42/mbc
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.8820.8820.6599090900.5127

Dielectric constant 25.9(0.0℃)
Exposure limits ACGIH: TWA 0.05 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 0.050 mg/m3
Stability: Stable. May react vigorously with reducing agents.
InChIKey XMFOQHDPRMAJNU-UHFFFAOYSA-N

Description and Uses

Lead oxide, a range of products that is formed by the oxidation of Lead in the forms of liquid and solid. Lead oxides are basically an oxide’s family varying in color (grey/green, red, and yellow), in degree of oxidation (PbO, Pb3O4, PbO2) and in crystal structure (in forms of PbO, orthogonal and tetragonal).
Lead oxide is a term that can be either Lead monoxide or litharge Lead tetroxide or Red Lead or Gray or Black oxide which is a mixture of 30 percent metallic Lead and 70 percent Lead monoxide. Black Lead is made for specific use in Lead acid storage batteries manufacturing. Due to large use in the Lead acid battery industry, Lead monoxide is one of the most important compounds of Lead, based on volume. Due to its electrical and electronic properties, litharge is also used in various components for different types of use like capacitors, electro photographic plates, and Video tubes, even in ferromagnetic and ferroelectric materials. Their wide range of chemical and physical properties, Lead oxides have been know and used worldwide since before the ancient Romans.

Lead(II,IV) oxide is used to prepare colorless glass, faience glaze, porcelain painting flux, iron and steel coatings, rubber pigment and in glass cement. It is also used in gas and steam pipes, storage batteries, writing on glass and to make lead peroxide and matches. It is associated with linseed oil and used as a thick, long-lasting anti-corrosive paint. It gives better water resistant properties by replacing magnesium oxide. Further, it is used in the manufacture of lead glass and rustproof primer paints. In addition to this, it acts as a pigment for primer paints for iron objects.

Safety

Symbol(GHS) 
GHS03,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H272-H302+H332-H351-H360-H372-H410
Precautionary statements  P202-P210-P273-P301+P312-P304+P340+P312-P308+P313
Hazard Codes  O,T,N
Risk Statements  61-8-20/22-33-50/53-62-48/23/25-40
Safety Statements  53-45-60-61-36/37
RIDADR  UN 1479 5.1/PG 2
WGK Germany  3
RTECS  OG5425000
TSCA  Yes
HazardClass  5.1
HS Code  28249010
Toxicity LD50 i.p. in rats: 45 mg Pb/100 g (Lead, 1972)

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