Magnesium Carbonate

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  • Identifiers

    CAS number
    546-93-0

    Molecular formula
    CMgO3

    SMILES
    C(=O)([O-])[O-].[Mg+2]

  • Odor profile

    Odorless 95.67%
    Sour 18.1%
    Sharp 15.54%
    Bitter 13.69%
    Animal 11.36%
    Clean 10.51%
    Sweaty 10.13%
    Milky 9.82%
    Pungent 9.57%
    Phenolic 9.1%

    Scent© AI

  • Properties

    Molecular weight
    84.31 g/mol

    Melting point expt.

    • 662 °F (Decomposes) (NIOSH, 2024)
    • Decomposes at 350
    • 990 °C
    • 662 °F (decomposes)
    • 662 °F (Decomposes)

    Boiling point

    • Decomposes (NIOSH, 2024)
    • Decomposes
    • decomposes

    Flash point est.
    110.16 ˚C

    Solubility expt.

    • 0.01 % (NIOSH, 2024)
    • 0.1g/L
    • Practically insoluble both in water or ethanol
    • White, friable masses or bulky, white powder; at about 700 °C is converted to MgO; sol in about 3,300 parts CO2-free water; more sol in water containing CO2; sol in dilute acids with effervescence; insol in alcohol /Magnesium carbonate hydroxide/
    • 0.0106 G/100 CC COLD WATER
    • SOL IN ACID, AQ CARBON DIOXIDE; INSOL IN ACETONE, AMMONIA
    • Insoluble in alcohol; soluble in acids
    • Solubility in water, g/100ml at 20 °C: 0.01 (very poor)
    • 0.01%

  • Synonyms

    • MAGNESIUM CARBONATE
    • 546-93-0
    • Magnesite
    • Magnesium carbonate anhydrous
    • 13717-00-5
    • Magmaster
    • Carbonic acid, magnesium salt
    • Carbonate magnesium
    • Magnesite (Mg(CO3))
    • Magnesite dust
    • Caswell No. 530
    • Carbonic acid, magnesium salt (1:1)
    • magnesium;carbonate
    • Hydromagnesite
    • Stan-mag magnesium carbonate
    • Magnesium carbonate (1:1)
    • 7757-69-9
    • Magnesium carbonate (MgCO3)
    • DCI light magnesium carbonate
    • HSDB 211
    • Magnesiumkarbonat
    • Magnesium(II) carbonate (1:1)
    • C.I. 77713
    • EINECS 208-915-9
    • NSC 83511
    • EPA Pesticide Chemical Code 073503
    • CI 77713
    • MgCO3
    • UNII-0IHC698356
    • CHEBI:31793
    • AI3-00768
    • Light magnesium carbonate
    • Magnesium (as carbonate)
    • Magnesium Carbonate Light
    • Ins no.504(i)
    • MAGNESIUM CARBONATE, LIGHT AR
    • Anhydrous magnesium carbonate
    • Ins-504(i)
    • Magnesium carbonate gold star
    • EC 208-915-9
    • E-504(i)
    • NSC-83511
    • 0IHC698356
    • 53678-75-4
    • Giobertite
    • Kimboshi
    • Apolda
    • Destab
    • Magfy
    • GP 20 (carbonate)
    • MA 70 (carbonate)
    • Gold Star (carbonate)
    • Magnesium carbonate [USAN]
    • 208-915-9
    • Australian magnesite
    • Magnesium carbonate,light
    • HEAVY MAGNESIUM CARBONATE
    • Magnesio carbonato
    • Magnesium carbonate; Magnesium carbonate light; Hydrated basic magnesium carbonate
    • EINECS 231-817-2
    • MFCD00064632
    • Carbonic acid, magnesium salt (1:?)
    • Magnesium carbonicum 6
    • Humco Dewees Carminative
    • Magnesium carbonate - heavy
    • Carbonic Acid Magnesium Salt
    • CHEMBL1200736
    • DTXSID4049660
    • Magnesium Carbonate Microparticles
    • CS-B1764
    • Magnesium, [carbonato(2-)-|EO]-
    • MAGNESIUM CARBONATE [WHO-DD]
    • AKOS015903527
    • Magnesium carbonate powder 1-5 micron
    • DB09481
    • FM32755
    • USEPA/OPP Pesticide Code: 073503
    • E504
    • DB-254188
    • DB-255103
    • ANHYDROUS MAGNESIUM CARBONATE [MART.]
    • NS00074347
    • Q407931
    • 695808-81-2

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 27.96
    methanol 46.79
    isopropanol 15.47
    water 52.13
    ethyl acetate 7.72
    n-propanol 14.3
    acetone 24.5
    n-butanol 10.91
    acetonitrile 10.82
    DMF 136.69
    toluene 2.94
    isobutanol 7.43
    1,4-dioxane 20.98
    methyl acetate 12.22
    THF 39.98
    2-butanone 11.49
    n-pentanol 7.54
    sec-butanol 10.05
    n-hexane 0.75
    ethylene glycol 33.22
    NMP 83.75
    cyclohexane 0.94
    DMSO 170.71
    n-butyl acetate 5.72
    n-octanol 5.24
    chloroform 3.13
    n-propyl acetate 5.67
    acetic acid 17.26
    dichloromethane 5.42
    cyclohexanone 8.9
    propylene glycol 17.79
    isopropyl acetate 4.82
    DMAc 117.71
    2-ethoxyethanol 38.16
    isopentanol 7.94
    n-heptane 1.15
    ethyl formate 11.54
    1,2-dichloroethane 7.51
    n-hexanol 7.46
    2-methoxyethanol 71.58
    isobutyl acetate 2.3
    tetrachloromethane 1.16
    n-pentyl acetate 5.18
    transcutol 34.2
    n-heptanol 5.69
    ethylbenzene 1.72
    MIBK 5.3
    2-propoxyethanol 29.22
    tert-butanol 17.88
    MTBE 7.37
    2-butoxyethanol 16.16
    propionic acid 11.39
    o-xylene 3.56
    formic acid 41.0
    diethyl ether 9.81
    m-xylene 2.85
    p-xylene 1.88
    chlorobenzene 1.69
    dimethyl carbonate 14.79
    n-octane 0.62
    formamide 65.49
    cyclopentanone 17.01
    2-pentanone 8.83
    anisole 6.46
    cyclopentyl methyl ether 11.84
    gamma-butyrolactone 26.92
    1-methoxy-2-propanol 41.49
    pyridine 10.71
    3-pentanone 7.26
    furfural 25.4
    n-dodecane 0.45
    diethylene glycol 44.59
    diisopropyl ether 2.49
    tert-amyl alcohol 12.04
    acetylacetone 11.01
    n-hexadecane 0.49
    acetophenone 8.03
    methyl propionate 13.05
    isopentyl acetate 4.23
    trichloroethylene 6.47
    n-nonanol 4.96
    cyclohexanol 6.74
    benzyl alcohol 8.48
    2-ethylhexanol 3.87
    isooctanol 4.17
    dipropyl ether 5.76
    1,2-dichlorobenzene 2.27
    ethyl lactate 10.39
    propylene carbonate 12.02
    n-methylformamide 48.93
    2-pentanol 7.18
    n-pentane 1.17
    1-propoxy-2-propanol 16.85
    1-methoxy-2-propyl acetate 10.25
    2-(2-methoxypropoxy) propanol 16.73
    mesitylene 2.2
    ε-caprolactone 11.53
    p-cymene 2.06
    epichlorohydrin 24.77
    1,1,1-trichloroethane 2.33
    2-aminoethanol 30.14
    morpholine-4-carbaldehyde 54.56
    sulfolane 46.54
    2,2,4-trimethylpentane 0.46
    2-methyltetrahydrofuran 16.08
    n-hexyl acetate 5.42
    isooctane 0.31
    2-(2-butoxyethoxy)ethanol 19.3
    sec-butyl acetate 3.04
    tert-butyl acetate 5.84
    decalin 0.47
    glycerin 40.77
    diglyme 32.06
    acrylic acid 13.41
    isopropyl myristate 2.88
    n-butyric acid 9.25
    acetyl acetate 4.4
    di(2-ethylhexyl) phthalate 4.97
    ethyl propionate 6.34
    nitromethane 34.88
    1,2-diethoxyethane 8.92
    benzonitrile 4.68
    trioctyl phosphate 4.04
    1-bromopropane 3.74
    gamma-valerolactone 27.04
    n-decanol 4.11
    triethyl phosphate 5.66
    4-methyl-2-pentanol 4.02
    propionitrile 7.63
    vinylene carbonate 10.05
    1,1,2-trichlorotrifluoroethane 22.84
    DMS 7.71
    cumene 1.45
    2-octanol 4.09
    2-hexanone 5.37
    octyl acetate 4.48
    limonene 2.52
    1,2-dimethoxyethane 39.76
    ethyl orthosilicate 5.03
    tributyl phosphate 4.02
    diacetone alcohol 14.86
    N,N-dimethylaniline 7.44
    acrylonitrile 11.1
    aniline 6.73
    1,3-propanediol 29.59
    bromobenzene 1.24
    dibromomethane 3.74
    1,1,2,2-tetrachloroethane 6.88
    2-methyl-cyclohexyl acetate 4.77
    tetrabutyl urea 7.48
    diisobutyl methanol 2.73
    2-phenylethanol 7.41
    styrene 1.83
    dioctyl adipate 5.15
    dimethyl sulfate 32.02
    ethyl butyrate 5.44
    methyl lactate 18.83
    butyl lactate 7.81
    diethyl carbonate 4.88
    propanediol butyl ether 14.85
    triethyl orthoformate 5.59
    p-tert-butyltoluene 2.1
    methyl 4-tert-butylbenzoate 11.01
    morpholine 28.28
    tert-butylamine 8.04
    n-dodecanol 3.27
    dimethoxymethane 58.38
    ethylene carbonate 8.76
    cyrene 19.4
    2-ethoxyethyl acetate 8.95
    2-ethylhexyl acetate 3.54
    1,2,4-trichlorobenzene 3.23
    4-methylpyridine 9.4
    dibutyl ether 3.19
    2,6-dimethyl-4-heptanol 2.73
    DEF 23.69
    dimethyl isosorbide 22.15
    tetrachloroethylene 5.17
    eugenol 14.02
    triacetin 9.18
    span 80 11.04
    1,4-butanediol 14.54
    1,1-dichloroethane 3.15
    2-methyl-1-pentanol 5.45
    methyl formate 34.45
    2-methyl-1-butanol 7.12
    n-decane 0.67
    butyronitrile 6.08
    3,7-dimethyl-1-octanol 3.73
    1-chlorooctane 1.78
    1-chlorotetradecane 1.01
    n-nonane 0.65
    undecane 0.54
    tert-butylcyclohexane 0.39
    cyclooctane 0.61
    cyclopentanol 10.95
    tetrahydropyran 8.92
    tert-amyl methyl ether 7.26
    2,5,8-trioxanonane 28.14
    1-hexene 1.73
    2-isopropoxyethanol 19.41
    2,2,2-trifluoroethanol 16.68
    methyl butyrate 7.84

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction