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Litharge Typical Specifications:
 
Uses of  Litharge (Chemical Grade)
  • Ceramic & Glass Industries
  • High temperature lubrication & greases
  • Stabilizer for PVC
  • Glaze & Vitreous
 
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