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Red Lead Typical Specifications:

Uses of Red Lead :
  • Ceramic & Glass Industries
  • High temperature lubrication & greases
  • Stabilizer for PVC
  • Glaze & Vitreous

ATTRIBUTE RED LEAD
JOINTING GRADE SETTING GRADE NON-SETTING GRADE
Colour Orange Red to Brick Red Orange Red to Brick Red Brilliant Orange Red to Brick Red
Crystal Structure Spinal Structure Spinal Structure Spinal Structure
Thermal Stability 500 ° C 500 ° C 500 ° C
Specific Gravity 9.1 9.1 9.1
Retention on 240 mesh IS Sieve (63 micron) (max %) 0.25 0.15 0.15
Apparent Density
(scott) gm/cc
1.6 to 1.8 1.3 to 1.6 1.2 to 1.3
Matter soluble in water
(in %)
0.3 0.3 0.3
Water Absorption mg/gm 90 to 100 90 to 110 100 to 110
Acid Absorption mg/gm 160 to 170 150 to 160 130 to 150
Volatile Matter at 105°C
(in %)
0.2 0.2 0.2
Oil Absorption % 6-7 6-7 6-7
Free Lead (% Max) Traces Traces Traces
PbO2 (in %) 15.1 to 25.1 25.2 to 33.2 33.3 and above
Pb3O4 43.0 to 72.0 72.1 to 95.0 95.1 and above
Total Lead Oxide 99.5 99.5 99.5
Uses Boiler & Water Pipe Line Lead Acid Batteries
Heat proof glasses
Ceramics
Optical glasses
Fluorescent tubes
Surface coating
Storage batteries
Ceramics
Rubber & plastics
Moisture Content (% Max) 0.05 0.05 0.05
Purity (% Min) 99.97 99.97 99.97