Mangalore Refinery and Petrochemicals Ltd supplies Bright Whitish Yellow Sulphur. Mangalore Refinery and Petrochemicals Ltd manufactures refinery and petrochemical products. Bright Whitish Yellow Sulphur has minimum of 99.9% soluble in Carbon Disulphide by weight. Bright Whitish Yellow Sulphur has the acidity of 0.03% maximum by weight. It is IS 6655: 1972 certified. This sulphur appears in the color of bright whitish yellow. The ash by weight of this sulphur is 0.25% maximum.