Widely Used 99% Purity Lead Monoxide for Rubber Colorants CAS 1317-36-8
1. Product Introduction
Assay Litharge is a special type of lead oxide. Highly pure lead monoxide is used in the determination of gold and silver by fire assay. Its color is typical a reddish-orange and chemical formula is PbO, easy to change color when exposed to light.
Lead Monoxide Basic Information | |
Product Name: | Lead monoxide |
CAS: | 1317-36-8 |
MF: | OPb |
MW: | 223.1994 |
EINECS: | 215-267-0 |
Mol File: | 1317-36-8.mol |
Lead monoxide Chemical Properties | |
Melting point | 886 °C(lit.) |
Boiling point | 1470 °C |
density | 10 |
vapor pressure | 10 mm Hg ( 0 °C) |
refractive index | 2.67 |
storage temp. | Store below +30°C. |
solubility | Soluble in concentrated alkali, HCl and ammonium chloride. Insoluble in dilute alkali and alcohol. |
form | powder |
Specific Gravity | 9.53 |
color | yellow |
PH | 8-9 (100g/l, H2O, 20ºC)(slurry) |
2. Product Specifications
tem | Value | Actual |
PbO% Content of lead monoxide | ≥99.5 | 99.92 |
Pb% Content of lead metal | ≤0.13 | 0.017 |
Fe2O3 Content of iron oxide% | ≤0.007 | 0.0008 |
Unsoluble in acetic acid% | ≤0.10 | 0.026 |
H2O% Moisture | ≤0.20 | 0.018 |
CuO% Content of copper oxide | ≤0.002 | 0.0004 |
Remains on sieve 2.00mm orders | 0 | 0 |
Remains on sieve 106 um orders | ≥95 | ≥99.5 |
3. Product Applications
Assay of gold and silver ores.
In ointments, plasters; preparing solution of lead subacetate. Glazing pottery; glass flux for painting on porcelain and glass; lead glass; varnishes; with glycerol as metal cement; producing iridescent colors on brass and bronze; coloring sulfur-containing substances, e.g., hair, nails, wool, horn; manufacture of artificial tortoise shell and horn; pigment for rubber; manufacture of boiled linseed oil; in assay of gold and silver ores.
Lead(II) oxide is employed mostly in lead-based industrial glass and industrial ceramics, including computer components. It is used as an intermediate/precursor in the manufacture of several products, for example water proof cements, lubricants, lubricating oils, inorganic pigments, lead soaps, petroleum refining, rubber, cathode ray tube glass, and polyvinyl chloride (PVC). It is useful for lead acid batteries as cathode and anode. Lead monoxide scores significant applications in oil, gas and chemical manufactures. It is an efficient catalyst for condensation reactions in organic synthesis.
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