Petro 22N Liquid is an anionic surfactant categorized under the naphthalene sulfonates chemical family, specifically identified as sodium alkyl naphthalene sulfonate. Key features of Petro 22N Liquid include its detergency, hard water tolerance, hydrotroping ability, low foaming characteristics, and wetting properties. These attributes make it effective for tackling tough cleaning challenges while maintaining compatibility with diverse cleaning formulations.

Chemical Name: Sodium Alkyl Naphthalene Sulfonate

Chemical Family: Naphthalene Sulfonates

Certifications & Compliance: Clean Air Act (CAA) Certified, Clean Water Act (CWA) Certified

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Enhanced TDS

Identification & Functionality

Features & Benefits

HII Features
Product Highlights
  • Low Foam: Petro® 22N is a low foaming surfactant with excellent hydrotropic and wetting properties for applications such as steam cleaning or soak formulations.
  • High Pressure: Petro® 22N can be used in high pressure spray cleaning applications and it will not clog spray nozzles.
  • Multi-purpose: Petro® 22N can be used in acid and alkaline systems, in de- scaling, automatic dish wash and other applications that include high temperature and or vigorous agitation.
  • Petro® 22N can also be used as an anticaking agent (e.g. copper sulfate, sodium bicarbonate, etc) and it has excellent hard water tolerance.

Applications & Uses


Physical Form
Clear amber liquid (at 25°C)
Soluble in
5% Water
ValueUnitsTest Method / Conditions
Surface Tension (at 25°C, 0.1% Solution)51mN/mDu Noüy (DIN 53914)
Wetting Power (at 25°C, 0.1% Solution)9secondsDraves Wetting Test
Foam Height (at 25°C, 0.25% Active)30mmRoss-Miles
ValueUnitsTest Method / Conditions
Moisture Content49.80 - 50.20%-
pH (at 5% Solids)7.5 - 10.0--
Active Content49.80 - 50.20%-
Salt Contentmax. 1.25%-
Specific Gravity1.190 - 1.210--
Unsulfonated Oilmax. 0.7%-
Viscosity (at 25°C)41mPa·s-
Density (at 25°C)1.19g/cc-

Regulatory & Compliance

Packaging & Availability

Packaging Type
Supplied by
Packaging Information

Petro® 22N Liquid is available in bulk shipment, in 55-gallon tight head drums of 550lbs. (227kg) net weight.

Storage & Handling

Storage Information

Keep container closed in a dry well-ventilated area.