China (Mainland)
Product
Caustic Soda Sodium
Other names
Caustic soda, Lye, Sodium hydroxide
Molecular Formula
NaOH
CAS No.
1310-73-2
EINECS No.
231-659-4
Appearance
white solid, hygroscopic
Application
Soap making, paper making
Solubility in water
111 g/100 ml (20 °C)
Place of Origin
Tianjin, China
Normal Package
25; 50kg/bag or 25kg/bag; 200kg/drum
Minimum Order Quantity
25MT
Main Port of Dispatch
Tianjin, China
Brief introduction:
Sodium hydroxide (Na OH), also known as lye and caustic soda, is a caustic
metallic base. It is used in many industries, mostly as a strong chemical base
in the manufacture of pulp and paper, textiles, drinking water, soaps and
detergents and as a drain cleaner. Worldwide production in 1998 was around
45 million tonnes. Sodium hydroxide is a common base in chemical laboratories.
Pure sodium hydroxide is a white solid; available in pellets, flakes, granules and
as a 50%saturated solution. It is hygroscopic and readily absorbs water from
the air, so it should be stored in an airtight container. It is very soluble in water
with liberation of heat. It also dissolves in ethanol and methanol, though it
exhibits lower solubility in these solvents than does potassium hydroxide.
Molten sodium hydroxide is also a strong base, but the high temperature
required limits applications. It is insoluble in ether and other nonpolar solvents.
A sodium hydroxide solution will leave a yellow stain on fabric and
paper.