Magnesium Potassium Fluorosilicate

Also known as: Silicate(2-), hexafluoro-, magnesium (1:1)

INCI: MAGNESIUM POTASSIUM FLUOROSILICATE

Magnesium Potassium Fluorosilicate (CAS 16949-65-8) is a cosmetic cosmetic ingredient functioning as Abrasive - removes dental plaque or impurities from skin surface through. EU Regulation 1223/2009 status: restricted, max 0.15%. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.

View industrial chemical safety profile for CAS 16949-65-8 →

Auto-generated CPSR Part A draft with source citations
Function
Abrasive - removes dental plaque or impurities from skin surface through grinding/polishing effect
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
F6MgSi
MW
166.38 g/mol
EC Number
241-022-2
PubChem CID
61861
IUPAC Name
magnesium hexafluorosilicon(2-)
InChIKey
INWUJAAIUAAHJA-UHFFFAOYSA-N

Regulatory Status

EU EU Status restricted
EU Max Conc. 0.15%
US US Status permitted
US Notes Allowed - fluoride compounds in OTC oral care products are regulated under the FDA OTC Monograph system

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Magnesium Potassium Fluorosilicate.

Calculate MoS for your specific formulation with the MoS Calculator.

EU CLP Annex VI Harmonized Classification

Legally binding harmonized classification per Regulation (EC) No 1272/2008 (CLP) Annex VI.

Signal Word
Danger
Pictograms
Acute Toxicity
Hazard Class and Category
Acute Tox. 3 *
Hazard Statements
  • H301 Toxic if swallowed
Specific Concentration Limits / M-factors
*

Inserted via ATP: CLP00

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE; GROUP
SVHC Candidate
No
Hazard classification: Restricted (Annex XVII)

Expanded Jurisdictional Detail

Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.

SA Saudi SFDA (III - Restricted)
Product type: Oral products. Max: 0,15 % calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0,15 %.
BRIN Brazil/India Cosmetics
India: Restricted · max 0,15 % calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0,15 %

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Pharmaceutical
Regulatory List Membership (1)
EU CosIng Cosmetics Ingredient Database

Expert Verdict

Expert safety assessment and concern-level summary for Magnesium Potassium Fluorosilicate.

Regulatory Flags

eu_cosing_listed

Known Synonyms

Silicate(2-), hexafluoro-, magnesium (1:1)

Chemical Function

Pharmaceutical

Regulatory Lists

Europe; Personal care; restricted

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Magnesium Potassium Fluorosilicate safe in cosmetics?

Magnesium Potassium Fluorosilicate has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.

Is Magnesium Potassium Fluorosilicate allowed in the EU?

Magnesium Potassium Fluorosilicate EU regulatory status: restricted. Maximum allowed concentration: 0.15%. This is based on EU Regulation 1223/2009 and its amendments.

What does Magnesium Potassium Fluorosilicate do in cosmetics?

Magnesium Potassium Fluorosilicate functions as: Abrasive - removes dental plaque or impurities from skin surface through grinding/polishing effect. It is classified as a cosmetic ingredient in our database. CAS number: 16949-65-8.

Is Magnesium Potassium Fluorosilicate used outside cosmetics?

Magnesium Potassium Fluorosilicate also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Magnesium Potassium Fluorosilicate have different safety status in cosmetics vs industrial chemicals?

Magnesium Potassium Fluorosilicate is classified GHS Danger (H301, H318, H332, H320, H335, H372, H319, H373) in the chemicals database but is restricted in EU cosmetics at max 0.15%.

Is Magnesium Potassium Fluorosilicate in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Magnesium Potassium Fluorosilicate in your formulation.