magnesium carbonate
carbonic acid, magnesium salt, basic
pH-control agent; drying agent; buffer and anticaking agent Magnesium carbonate, MgCO3, is a white solid that occurs in nature as a mineral. Several hydrated and basic forms of magnesium carbonate also exist as minerals. In addition, MgCO3 has a variety of uses.
  • American International Chemical, LLC.
  • ECSA Chemicals
    • ECSA Chemicals
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      Magnesium Carbonate
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magnesium carbonate (Click)
CAS Number: 546-93-0Picture of molecule
ECHA EINECS - REACH Pre-Reg: 208-915-9
FDA UNII: 0IHC698356
Nikkaji Web: J1.353F
MDL: MFCD00151022
Molecular Weight: 84.31360000
Formula: C Mg O3
NMR Predictor: Predict (works with chrome or firefox)
Category: anticaking agents, antibleaching agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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 FDA/DG SANTE Petitions, Reviews, Notices:
184.1425 Magnesium carbonate View-review
JECFA Food Additive: Magnesium Carbonate
GSFA Codex: Magnesium carbonate (504(i))
DG SANTE Food Additives: magnesium carbonate
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Physical Properties:
Appearance: white powder (est)
Food Chemicals Codex Listed: No
Boiling Point: 333.60 °C. @ 760.00 mm Hg (est)
Vapor Pressure: 0.000026 mm/Hg @ 25.00 °C. (est)
Flash Point: 338.00 °F. TCC ( 169.80 °C. ) (est)
logP (o/w): -0.809 (est)
Soluble in:
 water, 1e+006 mg/L @ 25 °C (est)
Insoluble in:
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Organoleptic Properties:
Odor Description:
at 100.00 %. 
Odor and/or flavor descriptions from others (if found).
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Cosmetic Information:
CosIng: cosmetic data2
CosIng: cosmetic data
Cosmetic Uses: absorbents
binding agents
bulking agents
opacifying agents
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Allan Chemical
Magnesium Carbonate
American Elements
Magnesium Carbonate 99%
Odor: characteristic
Use: Magnesium Carbonate is a water insoluble Magnesium source that can easily be converted to other Magnesium compounds, such as the oxide by heating (calcination). Carbonate compounds also give off carbon dioxide when treated with dilute acids. Magnesium Carbonate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards.
American International Chemical, LLC.
American International Chemical, LLC.
American International Chemical, LLC.
Barium & Chemicals
Magnesium Carbonate High Purified Grade
Odor: characteristic
Use: Fireproofing, heat insulating, preparing effervescent magnesium citrate. Used to clarify liquids by filtration in tooth and face powders, polishing compounds, manufacture mineral waters, pigments and paper fillers for rubber.
BOC Sciences
For experimental / research use only.
Magnesium carbonate Purity >98%
ECSA Chemicals
Magnesium Carbonate
Company Profile
MAGCARB® L (RX-13972)
Odor: characteristic
Use: MAGCARB L (RX-13972) is a magnesium carbonate that is used as a reinforcing agent and translucent filler in rubber and plastic. MAGCAB L (RX-13972) is also used as a flame retardant and smoke suppressant in plastics.
Kraft Chemical
Magnesium Carbonate
Odor: odorless
Use: A white powder , insoluble in water and alcohol, soluble in acids, used in dentifrices and cosmetics, in medicine as an antacid, and as a refractory material.
For experimental / research use only.
Magnesium Carbonate
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Safety Information:
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: anticaking agents, antibleaching agents
Recommendation for magnesium carbonate usage levels up to:
 not for fragrance use.
Recommendation for magnesium carbonate flavor usage levels up to:
 not for flavor use.
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Safety References:
EPI System: View search
Daily Med: search
NIOSH International Chemical Safety Cards: search
NIOSH Pocket Guide: search
NLM Hazardous Substances Data Bank: Search
Cancer Citations: Search
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NLM Developmental and Reproductive Toxicity: Search
EPA Substance Registry Services (TSCA): 546-93-0
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 11029
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 3
 magnesium carbonate
Chemidplus: 0000546930
EPA/NOAA CAMEO: hazardous materials
RTECS: OM2470000 for cas# 546-93-0
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 magnesium carbonate
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 546-93-0
Pubchem (cid): 11029
Pubchem (sid): 134977425
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
KEGG (GenomeNet): C12893
HMDB (The Human Metabolome Database): Search
FooDB: FDB013290
Export Tariff Code: 2836.99.5000
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ChemSpider: View
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•grades: technical, nf; fcc •medicinal magnesium carbonate is available in light & heavy forms; the light, which is 2 to 2 12 times as bulky as the heavy, is most commonly used. •usp, reagent, technical, dense and light powder grades; ceramic grade; fcc grade; uspnf grade in light and heavy powder •powder containing 90% magnesium carbonate and 10% starch
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Potential Blenders and core components note
None Found
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Potential Uses:
 cosmetic colorants 
 opacifying agents 
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Occurrence (nature, food, other): note
 not found in nature
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 carbonic acid magnesium salt (1:1)
 carbonic acid, magnesium salt
 carbonic acid, magnesium salt (1:1)
 carbonic acid, magnesium salt, basic
 magcarb L (RX-13972)
 magnesium basic carbonate
 magnesium carbonate basic
 magnesium carbonate, basic
 magnesium(II) carbonate (1:1)
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PubMed: Effects of food and antacids on the pharmacokinetics of eltrombopag in healthy adult subjects: two single-dose, open-label, randomized-sequence, crossover studies.
PubMed: Effects of high magnesium intake on bone mineral status and lipid metabolism in rats.
PubMed: Detection of key factors in the extraction and quantification of lycopene from tomato and tomato products.
PubMed: Dolomite supplementation improves bone metabolism through modulation of calcium-regulating hormone secretion in ovariectomized rats.
PubMed: Colorimetric determination of selenium in mineral premixes .
PubMed: Dry mixing technique for the large scale production of iodine fortified salt in India.
PubMed: In vitro assessment of antacid efficacy using a computer-controlled 'artificial stomach-duodenum' model reproducing gastroduodenal flux regulation.
PubMed: An investigation into the floating behaviour of a pectin-containing anti-reflux formulation (FF5005) by means of gamma scintigraphy.
PubMed: Nutritive utilization of Ca and Mg in Mg-deficient rats: a recovery study.
PubMed: [Caries prevention by raising the pH levels in the dental plaque during the intake of cariogenic carbohydrates].
PubMed: Reduction of exogenous oxalate in urine of rats by binding with aluminium-oxyhydrate (Andursil) and an anion-exchanger (Colestid) in the intestinal tract.
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