Magnesium chloride hexahydrate (MgCl2•6H2O)-Powder

Characteristic

Magnesium chloride is the name for the chemical compound with the formula MgCl₂ and its various hydrates MgCl₂(H₂O)_x. These salts are typical ionic halides, being highly soluble in water. 

Chemical formula：MgCl₂·6H₂O

Molar mass：95.211 g/mol (anhydrous);203.31 g/mol (hexahydrate)

Appearance：white or colourless crystalline solid

Density：2.32 g/cm³ (anhydrous);1.569 g/cm³ (hexahydrate)

Melting point：714 °C (1,317 °F; 987 K) 117 °C (243 °F; 390 K) (hexahydrate);on rapid heating: slow heating leads to decomposition from 300 °C (572 °F; 573 K)

Boiling point：1,412 °C (2,574 °F; 1,685 K)

Solubility in water：anhydrous 52.9 g/100 mL (0 °C);54.3 g/100 mL (20 °C);72.6 g/100 mL (100 °C)

hexahydrate:235 g/100 mL (20 °C)

Solubility：slightly soluble in acetone, pyridine

Solubility in ethanol:7.4 g/100 mL (30 °C)

Magnetic susceptibility (χ):−47.4·10⁻⁶ cm³/mol

Application

Utilized in the polymerase chain reactions (PCR). Used for dust control, ice control, and road stabilization. Employed in a variety of applications such as fertilizer, mineral supplement for animals, waste water treatment, artificial seawater, textiles, paper, fireproofing agents, cements, and fire extinguishers. Used in several medicines and topical or skin related applications. Acts as a coagulant in the preparation of tofu from soy milk. Acts as an anaesthetic for cephalopods.