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Chelating Agents REACH

2-ethylhexyl phosphate

CAS Number
12645-31-7
EC Number
235-741-0
Chemical Formula
C8H18O.xH3O4P
Molecular Weight
228.22 g/mol
Industries:Lubricants & MetalworkingWater TreatmentMining & Metals

Description

2-Ethylhexyl phosphate (CAS 12645-31-7 ), also known as phosphated 2-ethyl hexanol, is a phosphate ester used across industrial sectors as a corrosion inhibitor, chelating agent, and pH buffer. Its acid functionality allows it to interact with metal surfaces and dissolved ions, making it a functional additive in demanding process environments. In metalworking and lubricant formulations, it acts as an extreme-pressure additive. It serves as a corrosion inhibitor, protecting ferrous and non-ferrous metal surfaces under high-load conditions. Water treatment programs incorporate it to sequester hardness ions and control scale formation in cooling towers. In industrial water circuits, it provides essential stability. In mining and hydrometallurgy, it functions as a metal extractant or modifier in solvent extraction systems, supporting the selective separation of target metals. This chemical is effective for separating metals from leach solutions. It is also used in phosphating baths and surface treatment processes where controlled acid activity and metal ion chelation are required for the process. 2-Ethylhexyl phosphate is typically supplied as a liquid at ambient temperature. It is available in technical grade, suited to industrial applications in lubricants, water treatment, and extractive metallurgy. Bulk supply in drums and IBCs is standard for industrial procurement volumes. This ensures efficient handling and storage for large-scale manufacturing operations and specialized chemical processing facilities. Contact us for supply of 2-ethylhexyl phosphate Request Quote

Other Names (Synonyms)

2-Ethylhexanol phosphate | Phosphated 2-ethyl hexanol | S47Z02037E | HOSTAPHAT MDAH | RefChem:472002 | Phosphoric acid, 2-ethylhexyl ester | 2-Ethylhexyl acid phosphate | 2EHAPO4

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Boiling Point>180°C (1013 hPa) decomposes
Density1,01 g/cm 3
Flash Point>100°C
ColorColorless to Light yellow to Light orange
Formclear liquid
Water Solubility5.95μg/L at 20℃
Vapor Pressure0.085Pa at 25℃
Refractive Index1.4400-1.4460
pH2.3 (10g/l, H2O, 20°C) (as an emulsion)
Log P2.18

Safety & Handling

Danger
GHS05· CorrosiveGHS07· Irritant

Hazard Statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage

Precautionary Statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code2919 90 00
WGK (Germany)1