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InventoryRef 3508715/10/2010

MAGNESIUM CARBONATE HYDROXIDE

Magnesium carbonate hydroxide

MAGNESIUM CARBONATE HYDROXIDE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

Chemical identity and properties

PubChem 2D chemical structure for CAS 12125-28-9
CAS 12125-28-9PubChem CID 73415762

Magnesium carbonate hydroxide

IUPAC name
hexamagnesium;tetracarbonate;dihydroxide;pentahydrate
Molecular formula
C4H12Mg6O19+2
Molecular weight
509.96 g/mol
Exact mass
507.9075283 Da
Topological polar surface area
260.0 Ų
Hydrogen-bond donors
7
Hydrogen-bond acceptors
19
Covalent units
17
Defined stereocentres
0

Also known as

YQO029V1L4UNII-YQO029V1L4CCRIS 7884INS NO.504(II)INS-504(II)E-504(II)HYDRATED BASIC MAGNESIUM CARBONATEMAGNESIUM CARBONATE HYDROXIDE [MI]
16 more reported names
MAGNESIUM CARBONATE HYDROXIDE [WHO-DD]MAGNESIUM SUBCARBONATE (LIGHT OR HEAVY)HYDRATED BASIC MAGNESIUM CARBONATE [MART.]CARBONIC ACID, MAGNESIUM SALT (1:1), MIXT. WITH MAGNESIUM HYDROXIDE, HYDRATEHYDRATED BASIC MAGNESIUM CARBONATE (MART.)Marinco CRefChem:155180MAGNESIUM CARBONATE HYDROXIDE [INCI]609-673-0Magnesium hydrogen carbonateMagnesium subcarbonate (light or heavy)Hydrated basic magnesium carbonateMagnesium carbonate hydroxideBasic magnesium carbonateEINECS 235-192-7KinseiMagnesium carbonate basicMagnesium hydroxide carbonateCarbonic acid, magnesium salt (1:1), mixt. with magnesium hydroxide (mg(oh)2), hydrate

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match73415762

Attributed physical-property, hazard, environmental and use annotations.

  • Note: This chemical does not meet GHS hazard criteria for 97.7% (86 of 88) of all reports. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 86 of 88 companies (only 2.3% companies provided GHS information). For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 88 reports by companies from 4 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 86 of 88 reports by companies.; There are 2 notifications provided by 2 of 88 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 1 of 1 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Sources/Uses: Magnesite and lansfordite are examples of magnesium carbonate minerals; Used for fireproofing, heat insulating, filtrating, and to make effervescent magnesium citrate, mineral waters, pigments, and paper; Also used in tooth powders, face powders, polishing compounds, rubber fillers, antacids, and cathartics; [Merck Index] Used as a flavoring agent, anticaking agent, drying agent, formulation aid, humectant, lubricant or release agent, nutritive supplement, pH control agent, and processing aid for foods; [FDA] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Industrial Processes with risk of exposure: Pulp and Paper Processing [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for MAGNESIUM CARBONATE HYDROXIDE

INCI name

MAGNESIUM CARBONATE HYDROXIDE

Description

Magnesium carbonate hydroxide

Record provenance

Inventory reference
35087
Imported identity
MAGNESIUM CARBONATE HYDROXIDE
Source update
15/10/2010
European Commission CosIng source notes

Key data

Restriction
Function
BINDING
Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.
BUFFERING
Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
BULKING
Non-reactive (chemically inert), solid ingredients that dilute other solids and/or increase the volume of cosmetic products.
VISCOSITY CONTROLLING
Increasing or decreasing the viscosity (thickness) of cosmetics.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How MAGNESIUM CARBONATE HYDROXIDE appears in the CosIng inventory

The CosIng inventory lists MAGNESIUM CARBONATE HYDROXIDE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

MAGNESIUM CARBONATE HYDROXIDE is also tagged with 4 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

MAGNESIUM CARBONATE HYDROXIDE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, MAGNESIUM CARBONATE HYDROXIDE carries the following function designation(s):

CAS 12125-28-9 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for MAGNESIUM CARBONATE HYDROXIDE

This page reproduces the CosIng inventory entry for MAGNESIUM CARBONATE HYDROXIDE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research MAGNESIUM CARBONATE HYDROXIDE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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