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Lead (II) oxide



Main article: Lead(II) oxide

Lead (II) oxide (Plumbous oxide) is the chemical compound with the formula PbO. Its molecular weight is 223.20.

Additional recommended knowledge

Contents

Synonyms

Lead (II) oxide; Lead monoxide; Lead oxide yellow; C.I. 77577; Lead protoxide; Litharge yellow L-28; Massicot; Massicotite; Pigment yellow 46; Yellow lead ocher; plumbous oxide;

Description

Synthetic lead(II) oxide prepared by heating lead or certain lead compounds in air is called LITHARGE. It is a poisonous yellow or reddish-yellow solid, used in making lead glass, pottery glazes, and rubber

Physical and chemical properties

  • Physical state: reddish yellow powder, odorless
  • Melting point: 888 C
  • Boiling point: 1470 C
  • Specific gravity: 9.53
  • Solubility:
    • insoluble in water and alcohol
    • soluble in acetic acid, nitric acid, alkalies
  • pH: strong base

Health and safety

NFPA ratings

  • Health: 3
  • Flammability: 0
  • Reactivity: 0

Toxicity

  • H.S. CODE: 2824.10

Stability

Stable under ordinary conditions

Applications

Glazing pottery, Glass flux for painting, Lead glass; Metal cement with Glycerol; Storage batteries; Ointments and Plasters; Preparing lead subacetate solutions. Pproducing iridescent colors on brass and bronze; Coloring sulfur-containing substances; Pigment for rubber; Oil refining; Varnishes, Paints, and Enamels; Aassays for precious metal ores.

Sales specification

  • APPEARANCE: Yellow powder
  • LEAD MONOXIDE: 99.3% max
  • LEAD PEROXIDE: 0.1% max
  • RESIDUE IN NITRIC ACID: 0.1% max
  • MOISTURE: 0.2% max

Sources

  • Concise Inorganic Chemistry - JD Lee


 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Lead_(II)_oxide". A list of authors is available in Wikipedia.
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