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Magnesium hydroxide

Magnesium hydroxide

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Magnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2 in the form of white crystals obtained by combining water with magnesium oxide.

DESCRIPTION

Magnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2 in the form of white crystals obtained by combining water with magnesium oxide. It occurs in nature as the mineral brucite. On an industrial scale, this compound is obtained by treating a saline solution with lime.

hydroxide

Physical and chemical properties of magnesium hydroxide

Property

Value

Chemical formula

Mg(OH)2

Substance type

inorganic

Appearance

colourless trigonal crystals

Colour

white, colourless

State of aggregation (at 20 °C and atmospheric pressure of 1 atm)

solid

Density (solid state of matter at 20 °C), kg/m3

2344.6

Density (solid state of matter at 20 °C), g/cm3

2.3446

Melting point, °C

350

Molar weight, g/mol

58.35


Production technology

Ural Plant of Deicing Materials (UZPM) produces magnesium hydroxide synthetically from natural brine containing magnesium salts.

Technical properties:

hydroxide

hydroxide

Scope of application

The magnesium hydroxide is widely used in industry. It is applied as a fire retardant in the production of thermoplastics and polymer compositions. Magnesium hydroxide plays an important role in the manufacture of non-combustible wires and cables (automobile and halogen-free cables) and roofing sheets. Moreover, the magnesium hydroxide is used in electrical engineering and electronics to produce frames, connecting elements, cable channels, profiles, pipes, shipping containers. As a flocculant, magnesium hydroxide is used for purification of natural and waste waters, as well as in the chemical, pharmaceutical and food industries. Magnesium hydroxide is often used as a substitute for certain alloys.

Main uses of magnesium hydroxide

Use

Application details

Production of fire-resistant polymer compositions, paintwork materials and plastics

Used as a filler and fire retardant for polymer compositions, paintwork materials and plastics

Food industry

Used as a food additive E528; emulsifier, acidity regulator; as a component for sugar production

Production of chemical reagents, chemical industry

Used for producing pure and high-purity chemicals, reagents, magnesium oxide

Medicine, cosmetic, pharmaceutical industry

Used as a component of medicines and cosmetics; antacid

Environmental protection

Used as a flocculant for natural and waste water treatment

Agriculture

Production of mineral fertilizers


Magnesium hydroxide produced by UZPM

Magnesium hydroxide produced by UZPM is recommended as a raw material for obtaining magnesium oxide, as well as a component for the production of:

  • Agricultural products

  • Neutralizing agent of compositions for water and industrial gases purification

  • Fire retardant and filler for polymeric materials

hydroxide
Documents:

Safety Data Sheet (SDS) according to Regulation (EC) № 1907/2006, № 2015/830, № 1272/2008 of 01.09.2020

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