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Manganese carbonate(CAS No. 598-62-9)

Manganese carbonate MnCO3 (cas 598-62-9) Molecular Structure

598-62-9 Structure

Identification and Related Records

【Name】
Manganese carbonate
【CAS Registry number】
598-62-9
【Synonyms】
Manganese(Ⅱ) carbonate
Manganese carbonate (1:1)
Manganous carbonate
manganese(+2) cation carbonate
Manganese(2+) carbonate (1:1)
Manganese(II) carbonate
【EINECS(EC#)】
209-942-9
【Molecular Formula】
MnCO3 (Products with the same molecular formula)
【Molecular Weight】
114.946949
【Inchi】
InChI=1S/CH2O3.Mn/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
【InChIKey】
XMWCXZJXESXBBY-UHFFFAOYSA-L
【Canonical SMILES】
C(=O)([O-])[O-].[Mn+2]
【MOL File】
598-62-9.mol

Chemical and Physical Properties

【Appearance】
Brown powder
【Density】
3.125
【Melting Point】
350 °C
【Boiling Point】
333.6 °C at 760 mmHg
【Flash Point】
169.8 °C
【Water】
Insoluble
【Solubilities】
Insoluble <
【Color/Form】
Pink to almost white powder when freshly precipitated; rhombohedral, calcite structure
Rose-colored crystals, almost white when precipitated.
Pink solid trigonal
【Stability】
Stable. Incompatible with strong acids, strong oxidizing agents. May be moisture senstive.
【Storage temp】
Store in a cool, dry place. Keep container closed when not in use.
【Computed Properties】
Molecular Weight:114.946949 [g/mol]
Molecular Formula:CMnO3
H-Bond Donor:0
H-Bond Acceptor:3
Rotatable Bond Count:0
Exact Mass:114.922793
MonoIsotopic Mass:114.922793
Topological Polar Surface Area:63.2
Heavy Atom Count:5
Formal Charge:0
Complexity:18.8
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:2

Safety and Handling

【Safety Statements 】
S22;S24/25
【Safety】

Safety Statements: 22-24/25
S22:Do not breathe dust.?
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3
RTECS: OM2470000

【Transport】
25kgs,
【Formulations/Preparations】
Grades: chemical (46% manganese)
44% manganese; acid soluble.
【Exposure Standards and Regulations】
Trace minerals added to animal feeds. These substances added to animal feeds as nutritional dietary supplements are generally recognized as safe when added at levels consistent with good feeding practice. Element: Manganese; Source compound: manganese carbonate. (All substances listed may be in anhydrous or hydrated form.)
【Other Preventative Measures】
SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants.
【Specification】

?Manganese(II) carbonate , its cas register number is 598-62-9. It also can be called?Carbonic acid, manganese(2+) salt (1:1) ; Manganese carbonate (1:1) ; Manganese carbonate (MnCO3) ; Manganese(2+) carbonate ; Manganese(2+) carbonate (1:1) ; Manganese(II) carbonate ; and Natural rhodochrosite .

【Disposal Methods】
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Use and Manufacturing

【Use and Manufacturing】
Methods of Manufacturing

(1) A precipitate from the addition of sodium carbonate to a soln of manganese salt. (2) Hydrometallurgical treatment of manganiferous iron ore.
Produced commercially from manganese sulfate by precipitation with alkali-metal carbonates or hydrogen carbonates. If the presence of alkali-metal ions must be avoided in the product (as in the manufacture of ferrites), ammonium hydrogen carbonate may be used as the precipitating agent; precipitated manganese carbonate is filtered, washed, and dried at 110-120 deg C.
【Usage】

As pigment (manganese white), drier for varnishes, in feeds.

Biomedical Effects and Toxicity

【Therapeutic Uses】
MANGANESE CARBONATE IS USED IN MEDICINE AS A HEMATINIC
【Biomedical Effects and Toxicity】
The subcellular distribution of manganese (Mn) in brains of mice chronically admin Mn in different chemical forms with food was examined using gel chromatography. Male ddY-mice were divided into five groups of six animals each, & Groups 1 to 4 were given 2 grams/kilogram Mn of standard laboratory mouse chow) in the form of manganese chloride (MnCl2), manganese acetate (MnAc), manganese carbonate (MnCO3), or manganese oxide (MnO2), in the diets for 12 months, while Group 5 served as control. 24 hr after the last feed, animals were decapitated & brains were rapidly removed for study of the different regions (corpus striatum (CS), hypothalamus, midbrain, cerebral cortex (CC), hippocampus, cerebellum, & medulla oblongata). Subcellular fractions (mitochondrial, microsomal & cytosolic) & gel chromatography fractions were analyzed for Mn contents using flame atomizer absorption spectrophotometry. Results showed that CC levels of Mn in mice exposed to the nearly insoluble MnCO3 & MnO2 were higher than in controls, while Mn concns in the CS were similar to those in controls. Microsomal Mn in treated mice was also higher than in controls. The gel chromatographic profile of CS showed that 20% Mn was in the high molecular weight (MW) fractions, 45% was in the middle MW fractions, while 32% was in the low MW fractions. The % Mn in high MW fractions was higher (29% to 49%) in the Mn treated groups, than in controls. The % of Mn in low MW fractions of the MnO2 exposed group (9%) was lower than in the MnCl2, MnAc, & MnCO3 exposed groups (42%, 36%, & 38%, respectively). The authors conclude that the brain regional distribution of Mn from the virtually insoluble cmpds is different from that of soluble Mn cmpds, & that striatal subcellular & gel chromatographic profiles are similar for the divalent Mn cmpds. They add that there is more Mn associated with fast migrating ligands in the striatal cytosol of the Mn treated groups than in the controls, & that these binding characteristics are different from those of other organs. [Komura J et al.; Toxicology Letters 66 (3): 287-294 (1993)] PubMed Abstract

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