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Litharge

Litharge, or lead mono-oxide (PbO), is a versatile solid with a yellowish or reddish hue. It is used in making lead stabilisers, pottery, lead glass, paints, enamels, and inks. Additionally, it serves as an intermediate in various industries, including lubricants, greases, insecticides, inorganic pigments, lead soaps, petroleum refining, rubber, and PVC.

Litharge

Our litharge manufacturing plant incorporates a Barton plant as the first step, with refined lead ingots of at least 99.98% purity as the essential input. The output from the Barton plant is directed to the litharge furnace, equipped with necessary machinery like grinder, cyclone, and bag-house arrangements. The process culminates in the mixer/silo, pulveriser, and packing section.

Types of Litharge Produced

  • Granule litharge
  • Powder litharge

Standards conform to IS 58-1976

Uses of Litharge (Chemical Grade)

  • Ceramic and glass industries
  • High temperature lubrication and greases
  • Stabiliser for PVC
  • Glaze and vitreous

Litharge Typical Specifications

ATTRIBUTE

COMPOSITION

Colour

Canary Yellow with Reddish tinch

Crystal Structure

Orthorhombic + Tetragonal

Specific Gravity

9.5 to 9.9

Thermal Stability

250 ° C to 897 ° C

Retention on 240 mesh BS Sieve/63
micron IS Sieve (max %)

0.10

Apparent Density (scott) gm/cc

1.8 to 2.2

Subsidence in Petrol / Water mi/gm

0.40 to 0.42

Acid Absorption mg/gm

80 to 110

Solubility in Water gm/litre

0.10

Oil Absorption %

0.1

Insoluble matter in Acetic Acid (% Max)

0.08

Melting point (°C)

888

Volatile matter (% max)

0.20

Water insoluble in acetic acid (% max)

0.10

Water Absorption

100 – 105 mg/gm

Pb3O4(% max)

0.06

Free Lead (% Max)

0.01 to 0.05

PbO (% Min)

99.5