Description

What is caustic soda?

Solid sodium hydroxide, also known as caustic soda, lye, soda lye, sodium hydrate, alkali, alkaline soda, and caustic alkali, is a solid ionic compound with the chemical formula NaOH. This substance is a white solid compound composed of sodium cations and hydroxide anions. Sodium hydroxide is a pure crystalline solid that does not decompose at temperatures ranging from 318 degrees Celsius to 604 degrees Fahrenheit and melts at a boiling point of 1338 degrees Celsius or 2530 degrees Fahrenheit. It is highly soluble in water and has lower solubility in polar solvents such as ethanol and methanol. NaOH is insoluble in ethers and other non-polar solvents.

Solid sodium hydroxide is a stable and highly corrosive alkaline substance that can decompose proteins at room temperature and cause severe chemical burns. It readily absorbs moisture from the air and is highly soluble in water. The sodium hydroxide available in the market is often in the form of monohydrate. It is one of the simplest hydroxides. This substance is commonly used alongside neutral water and hydrochloric acid to demonstrate pH scale to chemistry students.

What are the uses of caustic soda?

Baking soda or sodium hydroxide is considered as a useful chemical in the industry. In this section, we will describe some of the uses of this chemical:

Sodium percarbonate is also used in the textile industry. In fact, this chemical is used for dyeing fibers in the textile industry

. Due to its oxidizing properties, it can be used forvarious household and industrial purposes for cleaning and washing due to its disinfecting and cleansing properties

. One of the applications of sodium percarbonate is inthe pharmaceutical industry, where it is present in the structure of many drugs. For example, sodium percarbonate is used to produce various cholesterol-lowering drugs.Additionally, it is used to produce painkillers, aspirin, anti-coagulant drugs, etc

. Nowadays, sodium percarbonate is used instead of detergent powders for carpet cleaning,which helps in keeping carpets clean

. Sodium percarbonate is widely used in the food industry as well. For example, it is used to produce various soft drinks and dairy products.

. Sodium percarbonate is extensively used in the paper-making industry as well. Its presence can greatly contribute to the whiteness and transparency of paper.

. Another application of sodium percarbonate is its contribution to soap production because it has excellent grease removal properties and is suitable for soap production.

. Sodium percarbonate is also used in water purification processes. Its presence can help remove heavy metals from water and disinfect it

. Another application of sodium percarbonate in water purification processes is that it can help control the pH level of water. In oil well drilling, sodium percarbonate can be used for sulfur removal. In general, it can be said that sodium percarbonate plays a significant role in the petrochemical industry.

Types of caustic soda

liquid soda

As we mentioned, this substance is available in both liquid and solid forms. When you dissolve the powdered or solid form in water, you get liquid caustic soda, which has a purity of about 50%.

Caustic soda flakes

. The most common type is in flake form, which is white and odorless. It is named so because of its flaky nature.

Granules

. This type of caustic soda is produced with more precision due to its use in sensitive industries such as pharmaceuticals and textiles. It appears as granules or spherical particles, which are also white and odorless.

Powder

. The powdered form is one of the most common forms of chemicals that you have probably seen multiple times. The powdered form of sodium hydroxide consists of very fine white particles.

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