Calfax® DB-45 is a clear, amber-colored, 45% active aqueous solution of branched sodium dodecyl diphenyl oxide disulfonate. Calfax® DB-45 is a powerful anionic surfactant that offers superior stability in harsh environments.

Chemical Name: Sodium Dodecyl Branched Diphenyl Oxide Disulfonate

CAS Number: 119345-04-9

Chemical Family: Sulfonates

Certifications & Compliance: Australian Industrial Chemicals Introduction Scheme (AICIS), OSHA 29 CFR 1910.1200, Occupational Safety & Health Administration (OSHA), SARA 311/312

Applicable Processes: Emulsification, Latex Emulsification

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Identification & Functionality

Features & Benefits

Agrochemicals Features
Industrial Additives Features
Product Benefits
  • Calfax® DB-45 is an outstanding emulsifier that is compatible with a broad range of high electrolyte solutions such as brine, caustic, and inorganic acids.
  • Calfax® DB is a strong surfactant plus hydrotrope and coupler in one.

Applications & Uses

Applicable Processes
Product Applications
  • Calfax® DB-45 offers magnificent wetting, coupling, solubilizing, and emulsification performance making it an ideal surfactant choice for many applications.
  • Latex Emulsification: The high surface activity and the high electrolyte tolerance of Calfax® DB-45 make it the surfactant of choice for the manufacture of latex emulsions for adhesives and foam rubber. These properties allow the user to operate the emulsification process under conditions that would not be usable with conventional surfactants, permitting greater control over the latex’s molecular weight and particle size. Calfax® DB-45 produces consistent polymerizations with excellent thermal and mechanical stability.
  • Agricultural Chemicals: The high emulsification and excellent water solubility of Calfax® DB-45 can aid the formulator of agricultural emulsions by providing a broader blend of anionic to nonionic in hard to emulsify pesticides and herbicides.
  • HI&I Cleaners: Calfax® DB-45 is uniquely stable and effective in acid, alkali, chlorine and peroxy bleach as well as formulations containing electrolytes and builders. Calfax® DB-45 is perfect for streak-free cleaning. It is also the surfactant of choice for heavy duty cleaners, bleach and peroxy cleaners, toilet bowl cleaners, glass, and all-purpose cleaners as well as concentrated 2X – 4X laundry and dish wash detergents.


Physical Form
Soluble In
Clear yellow to amber liquid (at 25°C)
Soluble in
Compatible with
High electrolyte solutions such as brine, caustic, and inorganic acids
Typical Properties
ValueUnitsTest Method / Conditions
Active Content45wt%-
Color (at 5% Active)max. 40-Klett
pH (at 5% Active)8.5 - 10.5--
Iron Contentmax. 5.0ppm-
Surface Tension (at 1% Active, pH=12.5)35dynes/cm-
Surface Tension (at 1% Active, pH=7.0)34dynes/cm-
Critical Micelle Concentration (0.1M NaCl)0.007g/100g-
Foam Height (at 1% Active Solution, 5 Minutes, pH=7.0)130mm-
Foam Height (at 1% Active Solution, 5 Minutes, pH=12.5)145mm-
Foam Height (at 1% Active Solution, Initial, pH=7.0)140mm-
Foam Height (at 1% Active Solution, Initial, pH=12.5)145mm-

Regulatory & Compliance

Packaging & Availability

Packaging Type
Supplied by
Packaging Information

Calfax® DB-45 is available in 500 lb. poly. drums, 2500 lbs. poly. totes and bulk tank or truck quantities.

Storage & Handling

Shelf Life
2 years
Storage and Handling Information

Store material at temperatures between 45°F to 100°F. Calfax® DB-45 may freeze at 25°F. Avoid overheating or freezing. If material is frozen, use mild heat and agitation to ensure the material is homogenous before use. Employ normal safety precautions (i.e., glove and safety goggles) when handling. Prevent contact with skin and avoid contact with eyes. Wash thoroughly after handling material. Keep containers closed when not in use.