liquid caustic soda refers to sodium hydroxide in liquid form,also known as caustic soda or caustic soda.It is a common inorganic compound in the chemical industry,with strong alkalinity.In existing chlor alkali plants,due to different production processes,its concentration is usually 30-32or 40-42.Pure liquid caustic soda is a colorless and transparent liquid with a relatively high density.Its melting point is 318.4℃and boiling point is as high as 1390℃.
liquid caustic soda has various important chemical properties.It is a strong base that can undergo neutralization reactions with various acids,generating corresponding salts and water.In addition,it also has strong hygroscopicity and is easily soluble in water.When dissolved,a large amount of heat is released,and the resulting solution is highly alkaline.This solution has a smooth texture and bitterness,which can turn red litmus paper blue and phenolphthalein solution red.It is easily soluble in ethanol and glycerol,but insoluble in acetone,ether,and acetic acid.
liquid caustic soda plays a crucial role in the chemical industry.It is an important raw material for manufacturing various chemical products,such as formic acid,oxalic acid,borax,phenol,sodium cyanide,etc.Meanwhile,liquid caustic soda is also an important raw material for manufacturing soap,synthetic fatty acids,and synthetic detergents.In the textile printing and dyeing industry,it is used as a cotton fabric desizing agent,scouring agent,silk agent,and solvent for reducing dyes and navy blue dyes.In addition,it is used in the smelting industry to manufacture aluminum hydroxide,aluminum oxide,and metal surface treatment agents,and in the instrument industry as an acid neutralizer,decolorizer,and deodorizer.
Moreover,liquid caustic soda has a wide range of applications in the adhesive industry,enamel industry,pharmaceutical industry,cosmetics industry,leather industry,coating industry,pesticide industry,and glass industry.For example,in the adhesive industry,it is used as a starch gelatinizer and neutralizer;In the pharmaceutical industry,liquid caustic soda is an important raw material for manufacturing certain stomach medicines and emulsifiers;In the cosmetics industry,it is used to regulate the acidity and stability of products.
