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Christian75/sandbox2

Anhydrous

Tetrahydrate
Names
IUPAC names
Manganese(II) chloride
Manganese dichloride
Other names
Manganous chloride
hyperchloride of managnese
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
RTECS number
  • OO9625000
UNII
  • InChI=1S/2ClH.Mn/h2*1H;/q;;+2/p-2 checkY
    Key: GLFNIEUTAYBVOC-UHFFFAOYSA-L checkY
  • InChI=1S/2ClH.Mn/h2*1H;/q;;+2/p-2
    Key: GLFNIEUTAYBVOC-NUQVWONBAP
  • Key: GLFNIEUTAYBVOC-UHFFFAOYSA-L
  • Cl[Mn]Cl
Properties
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 (1,209 °F; 927 K)
Boiling point 1,225 °C (2,237 °F; 1,498 K)
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
CdCl2
octahedral
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
250-275 mg/kg (rat, oral)[citation needed]
1715 mg/kg (mouse, oral)[1]
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
Supplementary data page
[[]]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
  1. ^ "Manganese compounds (as Mn)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).