Oxide

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Litharge, also known as lead(II) oxide (PbO), is a chemical compound consisting of lead (Pb) and oxygen (O) atoms. It is a bright yellow to reddish-brown solid that has been used for various industrial, scientific, and artistic purposes throughout history. Litharge has different forms and applications, including its use as a pigment, in glass and ceramics production, and in certain chemical reactions. Here's an overview of litharge lead oxide:

Chemical Structure: Litharge has a simple chemical structure, consisting of one lead ion (Pb²⁺) and one oxygen ion (O²⁻). Its chemical formula is PbO.

Properties:

• Color: Litharge is usually bright yellow to reddish-brown, depending on its particle size and the presence of impurities.
• Density: It is relatively dense, with a density of around 9.53 grams per cubic centimeter (g/cm³).
• Melting Point: Litharge has a high melting point of approximately 888°C (1630°F).

Uses:

1. Pigment: Litharge has been used historically as a pigment in paints, ceramics, and glass. It imparts a distinctive yellow color to these materials.

2. Glass and Ceramics: Litharge is used in the production of glass and ceramics to influence properties such as melting behavior and coloration. It can act as a flux, reducing the melting point of certain materials.

3. Lead-Acid Batteries: In lead-acid batteries, litharge is used to form the positive plate, where it reacts with sulfuric acid to produce lead dioxide (PbO₂), an essential component for battery function.

4. Catalyst: Litharge can be used as a catalyst in certain chemical reactions, particularly in organic synthesis and petroleum refining.

5. Pyrotechnics: It has been used in fireworks and pyrotechnics to produce specific colors when burned.

6. Assaying: In analytical chemistry and assaying, litharge is used in the fire assay process to separate precious metals like gold and silver from ores.

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• Delivery Time: Ready Stock
• Packaging Details: Bag Packing

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Selenomethionine (SeMet) is a naturally occurring amino acid. The L-selenomethionine enantiomer is the main form of selenium found in Brazil nuts, cereal grains, soybeans, and grassland legumes, while Se-methylselenocysteine, or its γ-glutamyl derivative, is the major form of selenium found in Astragalus, Allium, and Brassica species.^[1] In vivo, selenomethionine is randomly incorporated instead of methionine. Selenomethionine is readily oxidized.^[2]

Selenomethionine's antioxidant activity arises from its ability to deplete reactive oxygen species. Selenium and methionine also play separate roles in the formation and recycling of glutathione, a key endogenous antioxidant in many organisms, including humans.

Additional Information:

• Delivery Time: Ready Stock
• Packaging Details: 25 Kg Packing