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Calcium Dodecylbenzene Sulfonate

  • Corrosion inhibitors
  • CAS 26264-06-2
  • IUPAC: Benzenesulfonic acid, dodecyl-, calcium salt

Calcium Dodecylbenzene Sulfonate (CAS 26264-06-2) appears in 1 of the 1,812 car-care products CarCareTruth tracks (as of June 2026).

Calcium dodecylbenzene sulfonate contributes to the skin sensitization (H317) classification at mixture level in some calcium sulfonate anti-seize SDSs. The sensitizer pathway is from petroleum-derived alkylbenzene sulfonate class compounds in contact with skin. Not individually classified as a carcinogen or asthmagen. CERCLA RQ 1000 lbs indicates regulated substance status, not acute hazard at product quantities.

Calcium dodecylbenzene sulfonate (CAS 26264-06-2) is a calcium salt of dodecylbenzene sulfonic acid — a synthetic petroleum-derived surfactant widely used as a corrosion inhibitor and overbasing agent in industrial lubricants and greases. In calcium sulfonate anti-seize compounds, it contributes to the alkaline reserve that protects metal surfaces against rust and galvanic corrosion, particularly in marine and high-humidity service environments.

As a member of the alkylbenzene sulfonate class, this ingredient is associated with mild skin sensitization potential (H317 at mixture level when combined with other petroleum sulfonate-derived ingredients in the grease matrix). The sensitizer classification reflects cumulative exposure risk from the sulfonate class rather than severe acute hazard.

CERCLA Reportable Quantity of 1,000 lbs (454 kg) applies to this chemical for environmental spill reporting purposes — this is a regulatory threshold for large industrial releases, not a hazard level relevant to an 8 oz can of anti-seize.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
yes
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
4/5
Purpose: Calcium sulfonate corrosion inhibitor and overbasing agent in industrial greases and anti-seize compounds; provides alkaline reserve and surface protection against rust and galvanic corrosion

Common questions about Calcium Dodecylbenzene Sulfonate

What is Calcium Dodecylbenzene Sulfonate used for in car care?
Calcium sulfonate corrosion inhibitor and overbasing agent in industrial greases and anti-seize compounds; provides alkaline reserve and surface protection against rust and galvanic corrosion
Is Calcium Dodecylbenzene Sulfonate a VOC?
No. Calcium Dodecylbenzene Sulfonate is not classified as a volatile organic compound (VOC).
Is Calcium Dodecylbenzene Sulfonate on California's Proposition 65 list?
No. Calcium Dodecylbenzene Sulfonate is not on California's Proposition 65 list.

1 product contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.