English name:Magnesium chloride

CAS: 7786-30-3

EINECS number: 232-094-6

Molecular formula: Cl2Mg

MDL number: MFCD00149782

Molecular weight: 95.21

Appearance properties: colorless hexagonal crystal, easy delixing.

Appearance: Colorless, odorless small pieces, particles, blocky monoclinic crystal system, bitter taste. There are two kinds of salt, dihydrate and hexahydrate. The dihydrate salts are small white absorbent particles. Anhydrous salts are colorless deliquing flakes or crystals. At room temperature, it is a hexahydrate salt, the water content can change with the temperature, and 2 molecules of crystal water are lost at 100℃, and part of hydrochloric acid gas is released at 110℃, and it is decomposed into oxygen-containing magnesium chloride at high temperature. The relative density is 1.569 and the aqueous solution is neutral (pH is 7.0). It absorbs moisture very well. Highly soluble in water (160g/100ml, 20℃), soluble in ethanol.

Anhydrous magnesium chloride is colorless hexagonal crystal with a relative density of 2.177 and a melting point of 708℃.

Solubility: Soluble in water, alcohol.

Melting point: 714 °C(lit.)

Boiling point: 1412°C

Density: 2.32g /mL at 25 °C(lit.)

Refractive index: n20/D 1.336

Storage conditions: 2-8°C

Solubility: H2O: soluble

Form: powder

Specific gravity: 2.41

Color: Colorless

PH value: 5.0-7.5 (25℃, 1M in H2O)

Odor: odorless

Water solubility: 400 G/L (20 oC)

Sensitivity: hygroscopicity

Maximum wavelength (λmax) : λ: 260 nm Amax: 0.05

λ: 280 nm Amax: 0.03

Merck: 14,5662

Stability: hygroscopicity

use

Used for making metal magnesium, disinfectant, fire extinguishing agent, frozen brine, ceramics, and used for filling fabric, paper and other aspects