Liquid Sodium hydroxide
Liquid soda with the chemical formula NaOH, known as other commercial names, caustic soda, liquid sodium hydroxide, , is one of the most widely used chemicals in the world. Colorless and odorless liquid with a higher density than water (2.13 g/cm³) and molar mass of 39.997 g/mol.
The caustic soda or lye sodium hydroxide (NaOH) is one of the most consumable chemicals in the world. The largest industry that
Liquid soda is usually produced by electrolysis of sodium chloride and mercury, diaphragm cells or membrane cells.
*In the petrochemical industries and oil and gas refineries, are used to remove acidic components such as hydrogen sulfide, cresylic acid, mercaptan, naphthenic acid.
*Water treatment and reduction of water hardness
*The detergent industry is added to the water due to its ability to dissolve fat, oil.
*In the pharmaceutical industry it is used in the manufacture of a wide range of drugs, such as aspirin and blood cholesterol reducers.
*In the food industry to keep the nutritional value of the products used in their preparation process.
*It used to produce fuel cells. Epoxy resins, which are made with sodium hydroxide, are used to make wind turbines.
* Metal industry and glass, aluminum, galvanizing and electroplating.
* Dyeing industry.
Safety and hazards:
Contact with eyes: This substance is very corrosive. It causes eye irritation, severe wounds, and permanent damage to the eyes.
Skin contact: This substance is highly corrosive and can cause severe and deep burns and persistent ulcers in the skin. This material can penetrate the deep layers of the skin and can damage it. The degree and severity of its damage depends on the concentration and duration of the contact.
Swallowing and eating: Eating this substance may cause serious and permanent damage to the digestive system. Eating this substance involves severe digestive tract infections, severe pain, burning of the mouth, throat, nausea and diarrhea.
Inhalation: Inhalation of this substance may cause severe respiratory irritation and even lung edema.
Note: In the event of an accident, the first and only effective action is to wash the eyes or skin with water.
Note: It is an Inflammable substance.
As caustic soda is a corrosive substance, steel or polymer tanks should be used in packaging and maintenance of this chemical.There is also a remarkable point about this material, controlling the storage temperature. Because viscosity of soda increase at lower temperatures. For this purpose, the temperature should always be adjusted to 29 to 38 °C.
MSDS of NaOH 50%:
Sodium. Hydroxide | Uses, Benefits, and Chemical Safety Facts. (2018, August 21). Retrieved December 5, 2018, from https://www.chemicalsafetyfacts.org/sodium_hydroxide/
Hong, J., Chen, W., Wang, Y., Xu, C., & Xu, X. (2014). Life cycle assessment of caustic soda production: a case study in China. Journal of cleaner production, 66, 113-120.