2-ethylhexyl phosphate

CAS Number

12645-31-7

EC Number

235-741-0

Industries: Mining & Metals Lubricants & Metalworking

What is 2-ethylhexyl phosphate?

2-Ethylhexyl phosphate (CAS 12645-31-7), also known as phosphated 2-ethyl hexanol, is a phosphate ester used as a corrosion inhibitor, chelating agent, and pH buffer.

Where is 2-ethylhexyl phosphate used?

Metalworking and lubricants: extreme-pressure additive
Corrosion inhibition: protects ferrous and non-ferrous metal surfaces under high-load conditions
Water treatment: sequesters hardness ions and controls scale in cooling towers
Mining and hydrometallurgy: metal extractant or modifier in solvent extraction systems for selective separation of target metals
Phosphating baths and surface treatment: controlled acid activity and metal ion chelation
Its acid functionality allows it to interact with metal surfaces and dissolved ions.

Commercial specifications

Bulk supply in drums and IBCs

Other Names (Synonyms)

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What are the physical properties of 2-ethylhexyl phosphate?

Boiling Point >180°C (1013 hPa) decomposes

Density 1,01 g/cm 3

Flash Point >100°C

Color Colorless to Light yellow to Light orange

Form clear liquid

Water Solubility 5.95μg/L at 20℃

Vapor Pressure 0.085Pa at 25℃

Refractive Index 1.4400-1.4460

pH 2.3 (10g/l, H2O, 20°C) (as an emulsion)

Log P 2.18

How is 2-ethylhexyl phosphate classified and handled safely? Learn More

Danger

GHS05· Corrosive GHS07· Irritant

Hazard Statements

H302 Harmful if swallowed

H314 Causes severe skin burns and eye damage

H318 Causes serious eye damage

Precautionary Statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P264 Wash … thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

Which trade and regulatory codes apply to 2-ethylhexyl phosphate?

HS Code 2919 90 00

WGK (Germany) 1