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Isooctyl Acid Phosphate

  • Formula : C8H19O4P + C16H35O4P
Brand : Isooctyl Acid Phosphate
Synonym : Diisooctyl Phosphate (diester); Phsophoric Acid, Diisooctyl Ester
Related categories : Specialty Chemicals
TSCA : Yes
Boiling point : @ 760 mm Hg/Boiling Point Range: Not applicable. Decomposition starts at 257 degrees F
Solubility : Insoluble in water
Physical State : Clear liquid
Proper Ship Name : Corrosive Liquid Acidic Organic NOS (Diisooctyl acid phosphate)
Symbol : Isooctyl Acid Phosphate
Shipping Class : UN3265

Available Packaging Sizes

  • 5 gallon pails (poly or steel), 55-Gallon blue poly drum (standard), 55-gallon steel drum (additional fee)

Product Information

Diisooctyl Phospshate (diester) is used as a curing catalyst, oil additive, pigment dispersion agent. It is an equimolar mixture of mono and di alkyl/aryl esters, also categorized as acid number 280. Aceto produces this product under its IsleChem brand in Grand Island, NY.

View Aceto's entire portfolio of Alkyl/Aryl Acid Phosphates here

Properties, Uses, Production

Chemical Properties

Clear colorless liquid slightly thicker than water, slight isooctyl alcohol odor.


Curing catalyst, oil additive, pigment dispersion agent and others. For industrial use only.