Caustic Soda is also known as sodium hydroxide, featuring a highly caustic metallic base with alkali salt. It has various uses; the most common is for unblocking drains and sinks. Widely used as a cleaning agent, industrial cleaning, household, in the manufacturing of soaps and detergents. We recommend that you use protective clothing prior to handle this product, including heavyweight gloves, safety glasses and overalls. We can supply you with all the protection needed. [Comes on a 5 kg bucket]. Caustic Soda is very damaging to human skin, causing severe skin burns and eye damage on contact. Special care must be taken wen handling this hazardous chemical, it is strongly recommended to wear protective clothing, gloves and goggles.