What does the restriction note for AMMONIUM HEXAFLUOROPHOSPHATE mean?

The restriction field for AMMONIUM HEXAFLUOROPHOSPHATE reads: II/191. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 16941-11-0?

CAS 16941-11-0 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains AMMONIUM HEXAFLUOROPHOSPHATE?

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

InventoryRef 5459815/10/2010

AMMONIUM HEXAFLUOROPHOSPHATE

Phosphate (1-),Hexafluoro-, Ammonium

AMMONIUM HEXAFLUOROPHOSPHATE is linked to 1 EU annex record on this page. Inventory note: II/191.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Evidence linked Prohibited entry found Open this evidence	1	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Source mapped Official source mapped; ingredient rule not imported	0	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 16941-11-0

CAS 16941-11-0PubChem CID 9793912

Ammonium hexafluorophosphate

IUPAC name: azanium hexafluorophosphate

Molecular formula: F6H4NP
Molecular weight: 163.003 g/mol
Exact mass: 162.99855510 Da
Topological polar surface area: 1.0 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 7
Covalent units: 2
Defined stereocentres: 0

Also known as

NSC-403554NSC-407930RefChem:112165241-009-1Ammonium phosphorus fluorideAmmonium hexafluorophosphate(V)azanium;hexafluorophosphateF6H4NP

11 more reported names

Hexafluoro-phosphate(1-) Ammonium; Ammonium Hexafluorophosphate; Ammonium Hexafluorophosphate(1-); NSC 403554; NSC 407930Phosphate(1-), hexafluoro-, ammoniumAmmonium fluorophosphateHexafluorophosphate(1-) ammonium (1:1)ammonium;hexafluorophosphateNH4PF6Ammonium hexafluoridophosphate(1-)AMMONIUM HEXAFLUOROPHOSPHATE [MI]AS-11978DB-351027AMMONIUM HEXAFLUOROPHOSPHATE (NH4PF6)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID00884948

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 AMMONIUM HEXAFLUOROPHOSPHATE

INCI name

AMMONIUM HEXAFLUOROPHOSPHATE

Description

Phosphate
(1-),Hexafluoro-, Ammonium

Record provenance

Inventory reference: 54598
Imported identity: AMMONIUM HEXAFLUOROPHOSPHATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for AMMONIUM HEXAFLUOROPHOSPHATE

Annex II Restriction reference

Entry 191

Hydrofluoric acid, its normal salts, its complexes and hydrofluorides with exception of those given…

CAS: 7664-39-3

EC: 231-634-8

Key data

CAS

16941-11-0

241-009-1

Restriction

II/191

Function

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.

Official EU ingredient-name evidence

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

#1789 · AMMONIUM HEXAFLUOROPHOSPHATE

Ingredients with overlapping formulation functions

AMMONIUM CARBAMATEBUFFERING

AMMONIUM CARBONATEBUFFERING

AMMONIUM CHLORIDEBUFFERING, FRAGRANCE, VISCOSITY CONTROLLING

AMMONIUM GLYCOLATEBUFFERING, KERATOLYTIC

AMMONIUM HYDROXIDEBUFFERING, DENATURANT

AMMONIUM LACTATEBUFFERING, HUMECTANT, KERATOLYTIC, SKIN CONDITIONING

AMMONIUM MOLYBDATEBUFFERING

AMMONIUM NITRATEBUFFERING

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 chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How AMMONIUM HEXAFLUOROPHOSPHATE appears in the CosIng inventory

The CosIng inventory lists AMMONIUM HEXAFLUOROPHOSPHATE 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.

AMMONIUM HEXAFLUOROPHOSPHATE is also tagged with 1 cosmetic function 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

AMMONIUM HEXAFLUOROPHOSPHATE 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 AMMONIUM HEXAFLUOROPHOSPHATE reads: "II/191". 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, AMMONIUM HEXAFLUOROPHOSPHATE carries the following function designation(s):

BUFFERING

CAS 16941-11-0 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 AMMONIUM HEXAFLUOROPHOSPHATE

This page combines the CosIng inventory entry for AMMONIUM HEXAFLUOROPHOSPHATE 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 AMMONIUM HEXAFLUOROPHOSPHATE 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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