Potassium 2-ethylhexanoate

CAS Number
3164-85-0
EC Number
221-625-7

What is Potassium 2-ethylhexanoate?

Potassium 2-ethylhexanoate (CAS 3164-85-0) is the potassium salt of 2-ethylhexanoic acid; a catalyst precursor and processing aid.

Where is Potassium 2-ethylhexanoate used?

  • Plastics and polymer processing: catalyst or co-catalyst in polyurethane systems
  • Gel and cure reactions requiring controlled potassium delivery
  • Personal care: pH buffer and preservative-boosting agent in emulsion systems
  • Specialty chemical synthesis: potassium source in carboxylate-exchange reactions and precursor for other catalysts
  • Food and flavor: acidulant and buffering capacity with potassium fortification
  • It delivers potassium ions in solution-phase reactions and formulation systems.

Good to know: Technical-grade material is the most common commercial form; food-grade specifications are available for regulated applications requiring high purity standards.

Commercial specifications

  • Concentration levels vary by application grade
  • Bulk supply in drums or IBCs

Other Names (Synonyms)

Hexanoic acid, 2-ethyl-, potassium salt|2-Ethylhexanoic acid, potassium salt|P089X9A38X|Hexanoic acid, 2-ethyl-, potassium salt (1:1)|Potassium 2-ethylcapronate|T 45|POTASSIUM OCTOATE

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What are the physical properties of Potassium 2-ethylhexanoate?

Color slightly yellow, glassy
Form solid
Water Solubility Partly miscible with water.

How is Potassium 2-ethylhexanoate classified and handled safely? Learn More

Danger
GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard

Hazard Statements

H315 Causes skin irritation
H318 Causes serious eye damage
H319 Causes serious eye irritation
H361 Suspected of damaging fertility or the unborn child

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.
P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.

Which trade and regulatory codes apply to Potassium 2-ethylhexanoate?

HS Code 2915.90.5050
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