Ingredient Dictionary

POTASSIUM SULFOPROPYLACRYLATE

Definition

Potassium Sulfopropylacrylate is the organic compound

Cosmetic roles

Softens hairHAIR CONDITIONING

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

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

Names & identifiers

POTASSIUM SULFOPROPYLACRYLATEINCI2-Propenoic acid, 3-sulfopropyl ester, potassium saltSynonym

CAS No.chemical registry number: 31098-20-1
DTXSIDUS EPA chemical ID: DTXSID101014889
DTXCIDUS EPA compound ID: DTXCID501376954

IUPAC: Potassium 3-[(prop-2-enoyl)oxy]propane-1-sulfonate
Molecular formula: C6H9KO5S
Molecular weight: 232.29 g/mol

Measured properties

Appearance: solid
Colour: white
Melting/freezing point: &amp, gt, 300 ℃
Flash point: &amp, gt, 110 ℃
Water solubility: 3.329 g/㎖
Vapour density: 8.018639972385227
Relative density: 1.431 (25°C)
Auto-ignition temperature: 400 ℃
Molecular weight: 232.3

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 1 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.

Softener and conditioner1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 1 eye studies are on record.

Classed as highly irritating1Classed as low1

The studies disagree (the most common conclusion covers 50%), so they do not establish that this ingredient is irritating. 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 EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to
High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) according to EU Method B.6 (Skin Sensitisation)
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to