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InventoryRef 3509215/10/2010

MAGNESIUM FLUOROSILICATE

Magnesium hexafluorosilicate

MAGNESIUM FLUOROSILICATE is linked to 1 EU annex record on this page. Inventory note: III/43.

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Regulatory evidence by market

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MarketEvidence statusRecordsSource language
European UnionEvidence linked
Restricted entry found
Open this evidence		1English and EU languages
Great BritainEvidence linked
Restricted
Open this evidence		1English
CanadaSource mapped
Official source mapped; ingredient rule not imported
0English and French
New ZealandEvidence linked
Restricted
Open this evidence		1English
ASEANEvidence linked
Restricted
Open this evidence		1English and national languages
ChinaSource mapped
Official source mapped; ingredient rule not imported
0Chinese with selected English material
JapanSource mapped
Official source mapped; ingredient rule not imported
0Japanese; official English translation available
South KoreaSource mapped
Official source mapped; ingredient rule not imported
0Korean with some English names
United StatesSource mapped
Official source mapped; ingredient rule not imported
0English
AustraliaSource mapped
Official source mapped; ingredient rule not imported
0English
BrazilSource mapped
Official source mapped; ingredient rule not imported
0Portuguese with INCI crosswalks
IndiaEvidence linked
Restricted
Open this evidence		1English and Hindi
Saudi ArabiaEvidence linked
Restricted
Open this evidence		1Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 16949-65-8
CAS 16949-65-8PubChem CID 61861

Magnesium hexafluorosilicate

Magnesium fluorosilicate is a crystalline solid. Decomposes at 120 °C. Contact may cause slight irritation to skin, eyes, and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals. — CAMEO Chemicals

IUPAC name
magnesium hexafluorosilicon(2-)
Molecular formula
F6MgSi
Molecular weight
166.38 g/mol
Exact mass
165.9523872 Da
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
7
Covalent units
2
Defined stereocentres
0

Also known as

Magnesium fluorosilicateCaswell No. 532Hexafluorosilicate(2-) magnesium (1:1)Fluosilicate de magnesium [French]Fluosilicate de magnesiumSilicate(2-), hexafluoro-, magnesium (1:1)EINECS 241-022-2UN2853
16 more reported names
EPA Pesticide Chemical Code 075304UNII-H37V80D2JSMAGNESIUM HEXAFLUOROSILICATE [MI]EC 241-022-2MAGNESIUM SILICOFLUORIDE, (SOLID)MAGNESIUM SILICOFLUORIDE, [SOLID]RefChem:155211Magnesium hexafluorosilicate(2)FLUOROSILICATO DE MAGNESIOhexafluorosilicate, magnesium saltSILICO FLUORURO DE MAGNESIOSilicate(2-), hexafluoro-, magnesiumMAGNESIUM FLUOROSILICATE [INCI]Hexafluorosilicate(2) magnesium (1:1)241-022-2Silicate(2), hexafluoro, magnesium (1:1)
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for MAGNESIUM FLUOROSILICATE

INCI name

MAGNESIUM FLUOROSILICATE

Description

Magnesium hexafluorosilicate

Record provenance

Inventory reference
35092
Imported identity
MAGNESIUM FLUOROSILICATE
Source update
15/10/2010
European Commission CosIng source notes

Key data

CAS
16949-65-8
EC
241-022-2
Restriction
III/43
Function
ANTIPLAQUE
Helping protect against plaque.
ORAL CARE
Providing cosmetic effects to the oral cavity, e.g. cleansing, deodorising, protecting.

Official EU ingredient-name evidence

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

#15777 · MAGNESIUM FLUOROSILICATE

Ingredients with overlapping formulation functions

IMMORTALIZED HUMAN TOOTH PULP STEM CELL CONDITIONED MEDIAANTIPLAQUE, HAIR CONDITIONING, HUMECTANT, ORAL CARE
IPOMOEA BATATAS/SOLANUM TUBEROSUM STARCHANTIPLAQUE, ORAL CARE, SKIN CONDITIONING
LACTOBACILLUS/PICHIA/SACCHAROMYCES/RICE BRAN EXTRACT/SACCHARINA JAPONICA EXTRAC…ANTIPLAQUE, SKIN CONDITIONING, SKIN PROTECTING
MAGNESIUM FLUORIDEANTIPLAQUE, ORAL CARE
MORINGA OLEIFERA LEAF POWDERANTIMICROBIAL, ANTIOXIDANT, ANTIPLAQUE, HAIR CONDITIONING, ORAL CARE, SKIN CONDITIONING
MYRISTAMIDOPROPALKONIUM CHLORIDEANTI-SEBORRHEIC, ANTIMICROBIAL, ANTIPLAQUE
NICOTINYL ALCOHOL HFANTIPLAQUE
NONANOYL METHYLGLUCAMIDEANTIPLAQUE, SURFACE MODIFIER, SURFACTANT - CLEANSING

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

ECHA CHEM / Information on chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How MAGNESIUM FLUOROSILICATE appears in the CosIng inventory

The CosIng inventory lists MAGNESIUM FLUOROSILICATE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

MAGNESIUM FLUOROSILICATE is also tagged with 2 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 FLUOROSILICATE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for MAGNESIUM FLUOROSILICATE reads: "III/43". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

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

CAS 16949-65-8 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.
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Source note for MAGNESIUM FLUOROSILICATE

This page combines the CosIng inventory entry for MAGNESIUM FLUOROSILICATE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research MAGNESIUM FLUOROSILICATE 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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