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CAS NO. 1317-36-8 Purity 99.3% Refind Lead Oxide Litharge Silver & Gold Free or Assay Grade
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: | PbO |
| 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 | ≥99.3 | 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
Litharge, or lead(II) oxide (PbO), has several applications in various industries. Here are some common uses of litharge:
Pigments: Litharge is used as a pigment in paints, coatings, and ceramics. It provides a bright yellow or reddish-yellow color to these materials.
Fireworks: Litharge can be employed in the pyrotechnics industry to produce yellow or red color effects in fireworks.
Rubber Industry: Litharge is used in the rubber industry as an accelerator and curing agent in the production of certain types of rubber, such as neoprene.
Chemical Reagent: Litharge is sometimes used as a reagent in chemical laboratories for specific reactions. It can be used to test for the presence of carbon monoxide gas or as a catalyst in certain chemical reactions.
Traditional Medicine: In the past, litharge was used in traditional medicine, particularly in Ayurvedic practices. It was a component of certain formulations, although its use in modern medicine is limited due to its toxic nature.
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