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

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
16 more reported names
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Dry Powder Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Light, white friable mass or bulky white powder Source: EU Food Improvement Agents
- Physical Description: White odorless solid; [Merck Index] White odorless powder; [Alfa Aesar MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Solubility: Practically insoluble in water. Insoluble in ethanol Source: EU Food Improvement Agents
- 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)
- Industry Uses: Catalyst Source: EPA Chemical Data Reporting (CDR)
- 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
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
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
Annex records for MAGNESIUM CARBONATE HYDROXIDE
Key data
- 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.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
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
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.
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