Tri Basic Lead Sulphate is a chemical compound which is also known as tetra-lead trioxide sulphate. It has a chemical formula O7Pb4S with a molecular weight of 972.8 grams per mol. It is a stable compound but it may be sensitive to light on exposure. This chemical is used in storage batteries, to make alloys, pigments used for paint manufacturing, in oil varnishes with fast drying capability, lithography etc. Tri basic lead sulphate is a heavy white or off- white powder. It is insoluble in water and incompatible with alkaline materials, strong bases, strong acids, oxidizers etc. and may cause explosion on contact.