Sodium Hydroxide (Caustic soda)

Technical Features

Sodium hydroxide (NaOH), also known as caustic soda or lye, is a strong alkaline (basic) chemical. It is a white, odorless solid that readily dissolves in water, producing heat.

Membrane cell technology has the dominant share of caustic soda production across over the world. Compared with the two other processes, membrane cell process has the lowest energy consumption per ton. 80% of China’s caustic soda capacity was membrane cell process. North America has lagged in conversion from diaphragm cell process to membrane cell process by Europe having 80% of European caustic soda capacity.

Packaging Size

25 kg polyethylene (PE) FFS bags (flake type) and Bulk Shipments (liquid only)

Usage Areas

Glass manufacturing
Industrial chemicals
Soaps & detergents
Water treatment
Metallurgy & mining
Textiles
Food, pharmaceuticals & other applications

PDFSpecificationNAOH.pdf

CHEMICAL SPECIFICATIONS

Characteristics	Units	Standard Value
Appearance	--	White flakes
Assay as NaOH	%	97.5 Min.
Assay as NaOH (Dry Basis)	%	99.5 Min.
Sodium Chloride	%	10.10 Max.
Iron as Fe³⁺ (100% Basis)	ppm	20.0 Max.