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Manganese sulfate

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Manganese(II) sulfate

Manganese(II) sulfate monohydrate

Manganese(II) sulfate tetrahydrate

Manganese(II) sulfate

Identifiers
CAS number 7785-87-7 YesY
10034-96-5 (monohydrate)
10101-68-5 (tetrahydrate)
PubChem 24580
ChemSpider 22984 YesY
UNII IGA15S9H40 YesY
EC number 232-089-9
ChEMBL CHEMBL1200557 N
RTECS number OP1050000 (anhydrous)
OP0893500 (tetrahydrate)
Jmol-3D images Image 1
[show]
  • [Mn+2].[O-]S([O-])(=O)=O

[show]
  • InChI=1S/Mn.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 YesY
    Key: SQQMAOCOWKFBNP-UHFFFAOYSA-L YesY


    InChI=1/Mn.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
    Key: SQQMAOCOWKFBNP-NUQVWONBAV

Properties
Molecular formula MnSO4
Molar mass 151.001 g/mol (anhydrous)
169.02 g/mol (monohydrate)
223.07 g/mol (tetrahydrate)
277.11 g/mol (heptahydrate)
Appearance white crystals (anhydrous)
pale pink solid (hydrates)
Density 3.25 g/cm 3 (anhydrous)
2.95 g/cm3 (monohydrate)
2.107 g/cm3 (tetrahydrate)
Melting point

710 °C (anhydrous)
27 °C (tetrahydrate)

Boiling point

850 °C (anhydrous)

Solubility in water 52 g/100 mL (5 °C)
70 g/100 mL (7 °C)
Solubility soluble in alcohol
insoluble in ether
Structure
Crystal structure orthogonal (anhydrous)
monoclinic (monohydrate)
monoclinic (tetrahydrate)
Hazards
MSDS ICSC 0290
EU Index 025-003-00-4
EU classification Harmful (Xn)
Dangerous for the environment (N)
R-phrases R48/20/22, R51/53
S-phrases (S2), S22, S61
NFPA 704
NFPA 704.svg
0
1
1
Related compounds
Other cations Chromium(III) sulfate
Iron(II) sulfate
N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Manganese(II) sulfate usually refers to the inorganic compound with the formula MnSO4(H2O). This pale pink deliquescent solid is a commercially significant manganese(II) salt. Approximately 260 thousand tonnes of manganese(II) sulfate were produced worldwide in 2005. It is the precursor to manganese metal and many other chemical compounds. Mn-deficient soil is remediated with this salt.[1]

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