What is a Sodium borate?

Sodium borate, also known as borax, with the chemical formula Na₂B₄O₇·10H₂O, is an inorganic salt that appears as a white or colorless crystalline substance. It is highly water-soluble and widely used in both household and industrial applications, including detergents, softeners, preservatives, and in the manufacture of glass and ceramics. It has viscosity-modifying properties and is popular in DIY slime production. It also serves as a flame retardant, metal flux, and antiseptic. Sodium borate plays an important role as a buffering agent to stabilize pH and is commonly used in laboratories. In terms of safety, it is generally safe when used properly, but ingestion or exposure in high amounts can be toxic. It may irritate the skin or eyes and precautions are necessary to avoid inhalation or accidental ingestion. Some regions, such as the EU, have imposed restrictions on its use in certain products.

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