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Manganese lactate

Identifiers
CAS Number	51877-53-3
3D model (JSmol)	Interactive image
ChemSpider	135313
EC Number	240-182-0
PubChem CID	153528
CompTox Dashboard (EPA)	DTXSID801015638 DTXSID50966208, DTXSID801015638
InChI InChI=1S/2C3H6O3.Mn/c2*1-2(4)3(5)6;/h2*2,4H,1H3,(H,5,6);/q;;+2/p-2Key: KSNGEYQWLMRSIR-UHFFFAOYSA-L
SMILES CC(C(=O))O.CC(C(=O))O.
Properties
Chemical formula	C 6H 10MnO 6
Molar mass	233.08 g/mol
Appearance	Pink crystals
Solubility in water	Very soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Manganese lactate is an organic chemical compound, a salt of manganese and lactic acid with the formula Mn(C₃H₅O₃)₂. The compound forms light pink crystals, soluble in water, forming crystalline hydrates.

Synthesis

Dissolution of manganese carbonate in lactic acid solution:

MnCO₃ + 2C₃H₆O₃ → Mn(C₃H₅O₃)₂ + CO₂ + H₂O

Physical properties

Manganese lactate forms light pink crystals.

Manganese lactate is soluble in water and ethanol.

Manganese lactate forms crystalline hydrates of composition Mn(C₃H₅O₃)₂•n H₂O, where n = 2 and 3. Each lactate is a bidentate ligand. Two water molecules coordinate directly to the metal as well, cis to each other, to complete the octahedral cluster. In the trihydrate, the third water molecule is involved in hydrogen-bonding further away in the crystal structure.

Its dihydrate forms an orthorhombic crystal, the space group is P2₁2₁2₁.

The trihydrate is a monoclinic crystal, and the space group is P2₁.

References

1. "Manganese(II) Lactate Trihydrate". American Elements. Retrieved 17 January 2022.
2. "Jost Chemical - Manganese Lactate, CAS Number 51877-53-3 (anh.)". Jost Chemical. Retrieved 17 January 2022.
3. "Manganese(II) lactate trihydrate". Sigma Aldrich. Retrieved 17 January 2022.
4. Ke, Zeng-Bo; Fan, Xin-Hui; Di, You-Ying; Chen, Feng-Ying; Zhang, Li-Jun; Yang, Ke; Li, Bing (March 2022). "Crystal Structures and Solution Chemical Properties of Two Lactate Complexes Mn⋅H₂O(s) and Cu(C₃H₅O₃)₂(s)". Journal of Molecular Structure. 1252: 132145. Bibcode:2022JMoSt125232145K. doi:10.1016/j.molstruc.2021.132145. S2CID 245214598.
5. Lis, T. (15 March 1982). "Structure of manganese(II) L-lactate dihydrate". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry. 38 (3): 937–939. Bibcode:1982AcCrB..38..937L. doi:10.1107/S056774088200449X.
6. Singh, K. D.; Jain, S. C.; Sakore, T. D.; Biswas, A. B. (October 1975). "Crystal structure of some metal complexes of lactic acid". Zeitschrift für Kristallographie. 141 (5–6): 473–475. Bibcode:1975ZK....141..473S. doi:10.1524/zkri.1975.141.5-6.473.
7. Kemmitt, Tim; Mills, Ann M.; Gainsford, Graeme J. (2001). "The Formation of Manganese Carboxylates from MnO and MnO₂ and their Application in Lithium Manganate Precursors: X-Ray Crystal Structure of Manganese Lactate Trihydrate". Australian Journal of Chemistry. 54 (1): 37–42. doi:10.1071/CH01012. Retrieved 17 January 2022.

• Lactates
• Manganese compounds