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Ingredients

Ingredient Dictionary

SODIUM FLUORIDE

Sodium fluoride is a metal fluoride salt with a Na(+) counterion.

Molecular structure

Definition

Sodium fluoride is a metal fluoride salt with a Na(+) counterion. It has a role as a mutagen.

Source: PubChem

US FDA substance register · UNII 8ZYQ1474W7 · registered name Sodium fluoride · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Prevents plaqueANTIPLAQUECares for the mouthORAL CARE

Safety & regulatory references

Restricted
Taiwan · United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · Health Canada Cosmetic Ingredient Hotlist · 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 sodium 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 sodium 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 sodium 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 sodium 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

Korea’s toxic-substance GHS classification: Danger · H301 (category 3) · H331 (category 3) · H318 (category 1)

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 31 · 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

Source: EU restricted substances (Annex III)

Restriction III/31

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

SODIUM FLUORIDEINCI소듐플루오라이드Korean label name (MFDS standard)Sodium fluoride (NaF)Synonym
CAS No.chemical registry number
7681-49-4
EC No.EU chemical inventory number
231-667-8
DTXSIDUS EPA chemical ID
DTXSID2020630
DTXCIDUS EPA compound ID
DTXCID20630
IUPAC
Sodium fluoride
Molecular formula
FNa
Molecular weight
41.98817 g/mol

Measured properties

Appearance
solid
Odour
odourless
pH
7.4
Melting/freezing point
993 ℃
Initial boiling point and range
1700 ℃
Vapour pressure
1 ㎜Hg(1077℃)
Water solubility
4 g/100㎖(20℃)
Vapour density
1.45
Relative density
2.8 (g/cm³)
n-Octanol/water partition coefficient (Kow)
-0.77 (est.)
Viscosity
1.05 cP
Molecular weight
42

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: KOSHA safety data sheets (Korea)

What products actually use it for

What the 31 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.

  • Pharmaceutical (EPA)26
  • Processing aids not otherwise specified2
  • Biocide1
  • Thickening agent1
  • Cleaning agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 4 eye studies are on record.

Classed as moderate1

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 9 studies
  • Category 6.3A (Category 2)
    Skin Irritation · Read Across
  • Category 2
    Skin Irritation · Screening
  • Skin Irrit. 2
    Skin Irritation · Authoritative
  • Not likely to be sensitizing
    skin sensitisation: in vivo (non-LLNA) · Screening · according to EPA OPP 81-6 (Skin Sensitisation)
  • Classification not possible
    Skin Sensitization · Screening
  • Eye Irrit. 2
    Eye Irritation · Authoritative
  • Category 6.4A (Category 2A)
    Eye Irritation · Read Across
  • Category 1
    Eye Irritation · Screening
  • Serious eye damage/eye irritation - Category 2
    Eye Irritation · Screening

Source: US EPA CompTox dashboard

Related literature

Linked databases 24