Definition
US FDA substance register · UNII 1X545W620G · registered name AMMONIUM HEXAFLUOROSILICATE · single chemical substance
Cosmetic roles
Safety & regulatory references
- Restricted
- Taiwan · United Kingdom
Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)
Argentina · Brazil
- Field of application and/or use : (a) Toothpastes (b) Mouthwashes
- Maximum concentration permitted at final product : 0.15% expressed as fluorine. When it is mixed with other fluorine compounds permitted, the maximum concentration fluoride total must not exceed 0.15%
- Use conditions and warnings that must appear on the label : a) - Contains ammonium fluorsilicate. For toothpaste containing 0.1% -0.15% fluoride, except if is already included that is contraindicated for children (e.g. “for adult use only”) it must contain the following warning: “Children under 6 years: Use an amount like a pea size, with adult supervision during brushing to minimize swallowing. If you ingest fluoride from other sources, consult your doctor or dentist" b) - Contains ammonium fluorsilicate. - Keep out of children reach. - Do not use in children under 6 years old
ASEAN
- Field of application and/or use : Oral hygiene products
- Maximum authorised concentration in the finished cosmetic product : 0.15% calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0.15%.
- Other limitations and requirements : Thailand only 0.11% calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0.11%.
- Conditions of use and warning which must be printed on the labels : • Contains ammonium fluorosilicate • Children of 6 years and under: Use a pea sized amount for supervised brushing to minimize swallowing. In case of intake of fluoride from other sources consult a dentist or doctor(12)
European Union
- Product Type, body parts : Oral products
- Maximum concentration in ready for use preparation : 0,15 % calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0,15 %
- Wording of conditions of use and warnings : Contains ammonium fluorosilicate For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.1'5.0% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult use only") the following labelling is obligatory: "Children of 6 years and younger: use a pea-sized amount for supervised brushing to minimise swallowing. In case of intake of fluoride from other sources consult a dentist or doctor."
Source: MFDS (Korea) cosmetic regulatory information
Korea’s toxic-substance GHS classification: Danger · H301 (category 3) · H331 (category 3) · H311 (category 3)
EU Cosmetics Regulation, Annex III (restricted substances), entry 42 · maximum concentration 0.15% calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0.15% · applies to Oral products
Restriction III/42 · Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 16919-19-0
- EC No.EU chemical inventory number
- 240-968-3
- DTXSIDUS EPA chemical ID
- DTXSID6047076
- DTXCIDUS EPA compound ID
- DTXCID601860091
- IUPAC
- Bisammonium hexafluoridosilicate(2-)
- Molecular formula
- F6H8N2Si
- Molecular weight
- 178.15 g/mol
Measured properties
- Appearance
- Ammonium fluorosilicate appears as a white crystalline solid. Noncombustible. Corrodes aluminum. Used as a disinfectant, in etching glass, metal casting, and electroplating. · White solid, [Hawley] Colorless crystals, soluble in water, [MSDSonline]
- Odour
- ODORLESS
- Melting point
- TWO MODIFICATIONS @ ROOM TEMP: STABLE, CUBIC PHASE, METASTABLE, TRIGONAL PHASE · 230 °C
- Solubility
- SLIGHTLY SOL IN ALCOHOL, INSOL IN ACETONE · 18.16 G/100 CC WATER @ 17 °C
- Density
- 2 at 68 °F (USCG, 1999) - Denser than water, will sink · 2.011 g/cu cm
Values measured on the substance itself, not a specification for a commercial raw material.
Source: PubChem
What products actually use it for
What the 5 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Soil amendments2
- Stabilizing agent1
- Etching agent1
- Pharmaceutical (EPA)1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
3 skin studies and 4 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 7 studies
- Classification not possible
Skin Sensitization · Screening - Category 2
Skin Irritation · Screening - Category 6.3A (Category 2)
Skin Irritation · Read Across - Eye irritation - category 2A
Eye Irritation · Screening - Category 6.4A (Category 2A)
Eye Irritation · Read Across - Category 2A
Eye Irritation · Screening - Serious eye damage/eye irritation - Category 2
Eye Irritation · Screening
Source: US EPA CompTox dashboard
Linked databases 20
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU restricted substances (Annex III)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3 4
- PubChem
- Taiwan FDA cosmetic ingredients
- Taiwan FDA cosmetic regulations
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Chinese