Ingredient Dictionary

SODIUM PROPIONATE

Sodium propionate is an organic sodium salt comprising equal numbers of sodium and propionate ions.

Korean limit: 0.9%

SODIUM PROPIONATE Molecular structure — Molecular structure

Definition

Sodium propionate is an organic sodium salt comprising equal numbers of sodium and propionate ions. It has a role as a food preservative and an antifungal drug. It contains a propionate.

Source: PubChem

US FDA substance register · UNII DK6Y9P42IN · registered name Sodium propionate · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Sodium Propionate is the sodium salt of propionic acid that conforms to the formula:

Cosmetic roles

Stops microbes growing in the productPRESERVATIVE

Safety & regulatory references

Restricted: China · South Korea

Source: MFDS (Korea) cosmetic regulatory information

Argentina · Brazil

Maximum concentration permitted at final product : 2.0% (expressed as acid)

ASEAN

Maximum authorised concentration in the finished cosmetic product : 2% (acid)

Taiwan

2.0%

European Union

Maximum concentration in ready for use preparation : 2% (acid)

Source: MFDS (Korea) cosmetic regulatory information

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Restriction V/2

Source: EU CosIng ingredient list

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

Official labels & definitions

JCIA labelling name プロピオン酸Ｎａ: 本品は、プロピオン酸（＊）のナトリウム塩であり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

SODIUM PROPIONATEINCI소듐프로피오네이트Korean label name (MFDS standard)Propanoic acid, sodium saltSynonymプロピオン酸ＮａJapanese labelling name

CAS No.chemical registry number: 137-40-6
EC No.EU chemical inventory number: 205-290-4
DTXSIDUS EPA chemical ID: DTXSID7021996
DTXCIDUS EPA compound ID: DTXCID001996

IUPAC: Sodium propanoate
Molecular formula: C3H5NaO2
Molecular weight: 96.061 g/mol

Measured properties

Appearance: solid
Colour: white
Melting/freezing point: 210 ℃
Flash point: &amp, gt, 250 ℃ (o.c.)
Flammability (solid, gas): combustible
Water solubility: 500000 ㎎/ℓ (@ 0 ℃)
Vapour density: 3.32
n-Octanol/water partition coefficient (Kow): -3.23 (est.)
Molecular weight: 96.06

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 7 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.

Preservative4
Processing aids not otherwise specified1
Biocide1
Flavouring and nutrient1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

1 skin studies and 1 eye studies are on record.

Classed as low1

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 2 studies

Category 6.3B (Category 3)
Skin Irritation · Read Across
Category 6.4A (Category 2A)
Eye Irritation · Read Across