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Home » Waldies » Lead Stearate and Dibasic Lead Stearate

Lead Stearate and Dibasic Lead Stearate


Description
Lead Stearate Pb(C17 H35 COO)2 and Dibasic Lead Stearate, 2PbO, Pb (C17 H35COO)2 are basic lead soap of commercial stearic acid. These are versatile combined lubricants and heat stabilisers for PVC.
Typical Properties

Lead Stearate Dibasic Lead Stearate
Appearance White Powder White Powder
Specific gravity 1.40 - 0.02 1.90 - 0.05
Residue on 63 micron IS sieve (% max) - 0.60
Moisture (% max) 0.10 0.50
Lead Oxide Equivalent (% PbO) 30 - 34 52 - 56
Free fatty acid (% max) 0.60 0.50
Bulk density, tapped (g/ml) 0.6 - 0.7 0.40 - 0.50

Applications
Lead Sterate and Dibasic Lead Stearate have wide application as a lubricant for plasticized PVC compounds, particularly cable covering. For rigid PVC applications, it is necessary to use a well-balanced lubricant system.