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manganese chloride

CAS number : 7773-01-5

Molecular weight :

Molecular formula/chemical symbol :MnCl2

Description :

Manganese(II) chloride describes a series of compounds with the formula MnCl2(H2O)x, where the value of x can be 0, 2, or 4. The tetrahydrate is the most common form of "manganese(II) chloride". MnCl2·4H2O, but the anhydrous form and dihydrate MnCl2·2H2O are also known. Like many Mn(II) species, these salts are pink, the paleness of the color being characteristic of transition metal complexes with high spin d5 configurations.

Anhydrous MnCl2 is a polymeric solid, which adopts a layered cadmium chloride-like structure. The tetrahydrate consists of octahedral trans-Mn(H2O)4Cl2 molecules The hydrates dissolve in water to give mildly acidic solutions with a pH of around 4.

Manganese(II) chloride
Anhydrous
Tetrahydrate
IUPAC name[hide] Manganese(II) chloride Manganese dichloride
Other names[hide] Manganous chloride
Identifiers
CAS number	7773-01-5 Y, 38639-72-4 (dihydrate), 13446-34-9 (tetrahydrate)
PubChem	24480
ChemSpider	22888 Y
UNII	6YB4901Y90 Y
ChEMBL	CHEMBL1200693 N
RTECS number	OO9625000
Jmol-3D images	Image 1
Properties
Molecular formula	MnCl2
Molar mass	125.844 g/mol (anhydrous) 161.874 g/mol (dihydrate) 197.91 g/mol (tetrahydrate)
Appearance	pink solid (tetrahydrate)
Density	2.977 g/cm3 (anhydrous) 2.27 g/cm3 (dihydrate) 2.01 g/cm3 (tetrahydrate)
Melting point	654 °C (anhydrous) dihydrate dehydrates at 135 °C tetrahydrate dehydrates at 58 °C
Boiling point	1225 °C
Solubility in water	63.4 g/100 ml (0 °C) 73.9 g/100 ml (20 °C) 88.5 g/100 ml (40 °C) 123.8 g/100 ml (100 °C)
Solubility	soluble in pyridine, ethanol insoluble in ether
Structure
Crystal structure	CdCl2
Coordination geometry	octahedral
Hazards
EU Index	Not listed
Flash point	Non-flammable
LD50	250-275 mg/kg (rat, oral)
Related compounds
Other anions	Manganese(II) fluoride Manganese(II) bromide Manganese(II) iodide
Other cations	Manganese(III) chloride Technetium(IV) chloride Rhenium(III) chloride Rhenium(IV) chloride Rhenium(V) chloride Rhenium(VI) chloride
Related compounds	Chromium(II) chloride Iron(II) chloride
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

USES :

For aluminum smelting, organic chloride catalyst, dye and pigment manufacturing

Used in the pharmaceutical and dry cells, nutritional supplements, etc.

Keywords:Functional Chemicals

Report :

Product name	Manganese chloride	CAS：7773-01-5
Description	Pink translucent irregular crystal
TEST ITEMS		TEST RESULTS
MnCl2		≥99.0％
Zn		≤0.02％
Mg		≤0.01％
Ba		≤0.001％
Pb		≤20ppm
Water insoluble matter		≤0.005％
Water		≤200ppm
sulfate(SO4)		≤0.01％
Fe		≤0.0002％