Dibutyl oxalate

CAS Number

2050-60-4

EC Number

218-092-8

Industries: Plastics & Polymers Lubricants & Metalworking

What is Dibutyl oxalate?

Dibutyl oxalate (CAS 2050-60-4), also known as butyl oxalate, is a dibutyl ester of oxalic acid used industrially as a plasticizer and specialty solvent.

Where is Dibutyl oxalate used?

Plastics and polymer processing: plasticizer improving flexibility and workability in resin systems
Polymer synthesis: reactive intermediate or processing solvent
Lubricants and metalworking: functional additive or carrier fluid in cutting fluids
Coatings: solvent or co-solvent in coating formulations
It functions as a processing aid in polymer systems and a carrier in formulations.

Commercial specifications

Purity typically 98% to 99%+, with high-purity grades available
Clear liquid in drums and intermediate bulk containers

Other Names (Synonyms)

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What are the physical properties of Dibutyl oxalate?

Melting Point -30.5 °C

Boiling Point 241 °C

Density 1.047 g/cm³ @ Temp: 20 °C

Flash Point 228 °F

Appearance clear colourless liquid

Color Colorless to Almost colorless

Odor Faint, nondescript odor between fruity and wincy, rather pleasant but weak.

Form clear liquid

Water Solubility Practically insoluble in water

Refractive Index n 20/D 1.423(lit.)

Log P 2.742 (est)

How is Dibutyl oxalate classified and handled safely? Learn More

Danger

GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard

Hazard Statements

H302 Harmful if swallowed

H314 Causes severe skin burns and eye damage

H315 Causes skin irritation

H317 May cause an allergic skin reaction

Precautionary Statements

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

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P264 Wash … thoroughly after handling.

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

Which trade and regulatory codes apply to Dibutyl oxalate?

HS Code 29171190

Storage Class 10 - Combustible liquids

WGK (Germany) 3