E-GRADE® Methyldiethanolamine (E-GRADE® MDEA)

E-GRADE® Methyldiethanolamine (E-GRADE® MDEA) is primarily used in stripping, cleaning, and wet etching formulations in the semiconductor, display, and PCB industries. Most are water-soluble and contain aminoglycol or polyether structures where both the amine and glycol functions contribute to their performance. The range of primary, secondary, and tertiary amines and structures allows the selection of base strength and corrosion rates based on the needs of the application.

Chemical Family: Amines

End Uses: Electronics, Printed Circuit Boards, Semiconductor

Applicable Processes: Etching Applications, Metal Removal, Semiconductor Etching, Semiconductor Manufacturing

Features: Faster Stripping, High Purity, Low Trace Metals, Low Vapor Pressure, Water Soluble

Safety Data Sheet
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Enhanced TDS

Identification & Functionality

Blend
No
CAS Number
105-59-9
Chemical Family
Chemical Name
Function
Curing Agent, Catalyst
Single Ingredient
Yes
Synonyms
MDEA
Technologies
Product Families
Chemical Structure

E-GRADE® Methyldiethanolamine (E-GRADE® MDEA) - Chemical Structure - 1

Features & Benefits

Industrial Additives Features
Product Features
  • High purity
  • Low trace metals
  • Low vapor pressures
  • Water soluble
  • Trace metal reduction via purification
  • Blending and aqueous dilution available
  • Range of metal removal rates
  • Range of pK, and buffering abilities

Applications & Uses

Properties

Physical Form
Soluble In

Regulatory & Compliance

Technical Details & Test Data

Linear Polarization Resistance Corrosion Rates for 10 wt% Aqueous Amines

E-GRADE® Methyldiethanolamine (E-GRADE® MDEA) - Linear polarization resistance corrosion rates for 10 wt% aqueous amines - 1

  • In general, primary amine metal removal rates are higher than secondary and tertiary amines.
  • Aluminum removal rates are highest requiring careful choice of amine.
  • Tungsten and Molybdenum are relatively inert to amines.

Packaging & Availability

Regional Availability
  • Global

Other

Appearance
Clear and substantially free of foreign matter
Color (SDS)
Colorless
Odor (SDS)
Ammoniacal
Chemical Properties
ValueUnitsTest Method / Conditions
pH11.5-
Physical Properties
ValueUnitsTest Method / Conditions
Boiling Point247.0 °C°C
Flash Point140.0 °C°CPensky-Martens Closed Cup (PMCC)
Molecular Weight119.0 g/molg/mol
Specific Gravity1.0431-