DePHOS™ 4AL is a low to moderate foaming anionic phosphate ester in free acid form, recommended for use as a lubricant, corrosion inhibitor, and emulsifier in metalworking applications, particularly highly effective for aluminum machining. It offers good wetting and hydrotroping performance. DePHOS™ 4AL is dispersible in water and oils, and soluble in aliphatic solvents, other solvents, and alcohols Please submit a document request or general inquiry form if you’d like to access an SDS in another language.

Chemical Family: Organophosphates, Phosphate Esters, Phosphorous-based Compounds

  • TypeDocument Name
View All Documents

Technical Data

Identification & Functionality

Features & Benefits

HII Features

Applications & Uses

Properties

Appearance
Clear colorless to pale yellow liquid
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity (at 25°C)approx. 1.03
Density (at 25°C)approx. 1.03g/mL-
Specifications
ValueUnitsTest Method / Conditions
Colormax. 2Gardner
Moisture Contentmax. 2%-
Acid Value (at pH 9.0 - 9.5)155 - 175--
pH Value (5% in 11 IPA Deionized Water)max. 3.0--

Technical Details & Test Data

Technical Information
  • Dephos 4AL exhibits low to moderate foam, surface tension reduction, and is a good hydrotrope for nonionic surfactants in alkaline systems.

Modified Ross-miles Foam Height - 0.1% By Weight In DI Water

 

Dephos 4AL - Technical Information - 1

Dynamic Surface Tension - 0.1% By Weight In DI Water

 

  • Dephos 4AL - Technical Information - 1

Hydrotrope Test - Cloud Point (°C) (5% NPE-9, 3.75% Dephos 4al, 91.25% Alkaline Electrolyte)

 

Dephos 4AL - Technical Information - 1

Packaging & Availability

Regional Availability
  • North America