Tri Basic Lead Sulphate, abbreviated into TBLS is a chemical in white powder form. It contains low molecular weight and moisture content. It constitutes about 87 to 89% Lead. TBLS is mostly used along with a lubricating substance like Calcium Stearate or DBLS. It is very stable and tolerant to heat which is why it is used in high temperature applications without fear of decomposition. It is sweet to taste but highly toxic in nature and hence is unfit for consumption. The process of manufacturing Tri Basic Lead Sulphate begins by choosing among a group of substances constituting Lead Sulphate, Lead Ammonium Sulphate, Lead Monoxide, Monobasic Lead Sulphate, Tetrabasic Lead Sulphate, and Crystalline Dibasic Lead Sulphate. The chosen substance is then treated with one among aqueous ammonia, a mixture of aqueous ammonia and solid ammonium sulphate, solutions of ammonium sulphate, and slurries of ammonium sulphate.