Calcium difluoride is an inorganic calcium salt and a calcium salt.
Definition
Calcium difluoride is an inorganic calcium salt and a calcium salt.
Source: PubChem
US FDA substance register · UNII O3B55K4YKI · registered name CALCIUM FLUORIDE · 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 calcium fluoride. 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 calcium fluoride. - 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 calcium fluoride • 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)
Canada
- Conditions of Use by product type : (a) Not permitted in oral products. (b) other products
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 calcium fluoride 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
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex III (restricted substances), entry 30 · 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/30 · 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
- 7789-75-5
- EC No.EU chemical inventory number
- 232-188-7
- DTXSIDUS EPA chemical ID
- DTXSID4050487
- DTXCIDUS EPA compound ID
- DTXCID3029497
- IUPAC
- Calcium difluoride
- Molecular formula
- CaF2
- Molecular weight
- 78.075 g/mol
Measured properties
- Appearance
- Calcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999) · Dry Powder, Other Solid, Large Crystals, CBI
- Boiling point
- 2500 °C · 2500 °C @760 [mm Hg]
- Melting point
- 1403 °C · MP: 1350 °C, Mohs hardness 4, specific gravity 3.2 /Fluorspar/
- Solubility
- 0.0015 g/100 ml water at 18 °C, slightly sol in dil mineral acids · Slightly sol in acid.
- Density
- 3.18 at 68 °F (USCG, 1999) - Denser than water, will sink · 3.18
- Colour
- grey
- Odour
- odourless
- Melting/freezing point
- 1418 ℃
- Initial boiling point and range
- 2500 ℃
- Vapour pressure
- 16 ㎜Hg (1910℃)
- Water solubility
- 1.6 ㎎/ℓ (18℃)
- Relative density
- 3.18
- Molecular weight
- 78.08
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 12 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.
- Chemical reaction regulator3
- Soil amendments3
- Intermediate2
- Filler2
- Processing aids not otherwise specified1
- Pharmaceutical (EPA)1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
2 skin studies and 1 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 3 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to - Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Source: US EPA CompTox dashboard
Related literature
- Review on fluoride, with special emphasis on calcium fluoride mechanisms in caries prevention · 1997
- Influence of hydroxyapatite nanoparticles on the formation of calcium fluoride surface layer on enamel and dentine in vitro · 2022
- The Influence of Saliva on the Formation of Calcium Fluoride–Like Material on Human Dental Enamel · 2000
- Critical Evaluation of the Composition and Use of Topical Fluorides, with Emphasis on the Role of Calcium Fluoride in Caries Inhibition · 1990
- Kinetics of acquisition and loss of calcium fluoride by enamel in vivo. · 1989
Linked databases 23
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU restricted substances (Annex III)
- Health Canada Cosmetic Ingredient Hotlist
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic regulatory information 2 3 4
- NIST Chemistry WebBook
- PubChem 2
- Taiwan FDA cosmetic ingredients
- Taiwan FDA cosmetic regulations
- Tlooto literature search 2 3 4 5
- 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 · Korean · English · Japanese · Chinese