sodium hydroxide (NAOH) a.k.a causic soda commonly used in labs.
MOLAR MASS of naoh is 39.997 g/mol.
It is dry hard brittle, white stocks in large fused opaque white-stone like masses having a dense crystalline fracture in small pellets/flakes.
it is very delinquent and one of the strongest base , acts as a saponifying agent which is used in industrial purposes.
It is an important industrial chemical as it is used on its own and is also used as a raw material in the production of other chemicals. The basis for the production of sodium hydroxide is the electrolysis of brine.