Tetramethylammonium Hydroxide (TMAH) | CAS# 75-59-2

SACHEM’s Tetramethylammonium Hydroxide is the purest TMAH available worldwide.  TMAH is a quaternary ammonium compound (Quat) that is used in the manufacturing of integrated circuitsflat panel displays, printed circuit boards, capacitors, sensors, and many other electronic components. The molecular formula is N(CH₃)₄⁺ OH⁻ and it is commonly manufactured as an aqueous solution, in methanol or in propelyne glycol

SACHEM’s Tetramethylammonium Hydroxide Benefits: 

We have manufacturing facilities in America and Asia and can ship our products anywhere in the world.

  • Contains no metal
  • Leaves no residual on heating
  • Features exceptionally low contaminant levels
  • Various grades specific to each application
  • Customize specifications to meet unique requirements of the individual customer
  • Exceptionally consistent product qualityTetramethylammonium Hydroxide, TMAH, CAS# 75-59-2
  • Reliability for your high volume production

Applications for Tetramethylammonium Hydroxide (TMAH):

Markets for Tetramethylammonium Hydroxide (TMAH):

  • Polymers
  • Semiconductor
  • Zeolites
  • Printed Wiring Board
  • Energy Storage
  • Oilfield

SACHEM is committed to the safe handling of all of our products.  For more information on how to handle this product safely please visit our TMAH Safety Services page.  You can also request a TMAH safety and handling presentation that includes information on toxicity, PPE suggestions and more.  Use the form below to request a quote or get a sample one of our TMAH products.

Available Products
Tetramethylammonium Hydroxide 20% Aqueous CAS# 75-59-2
Tetramethylammonium Hydroxide 20% in Propylene Glycol CAS# 75-59-2/57-55-6
Tetramethylammonium hydroxide 24.7% in Methanol CAS# 75-59-2/67-56-1
Tetramethylammonium Hydroxide 24.9% Aqueous CAS# 75-59-2
Tetramethylammonium Hydroxide, 25% Aqueous CAS# 75-59-2
Tetramethylammonium hydroxide 25% in Methanol  CAS# 75-59-2/67-56-1
Tetramethylammonium Hydroxide, 98%, Pentahydrate Crystals CAS# 10424-65-4

Synonyms: Ammonium Tetramethyl Hydroxide, TMAOH, TMAH, TMH,

Strategies for Tetramethylammonium Hydroxide (TMAH) Recovery and Recycling