SolverPI-Monomer TMAH

Product Detail

 Product Name: Tetramethylammonium hydroxide

Abbreviated name: TMAH

Item No.: SolverPI-Monomer TMAH

CAS No.:75-59-2

EINECS:200-882-9

Molecular formula:C4H13NO?(CH3)4NOH

Relative Molecular Mass:91.23

Constitutional Formula:



 Physicochemical Property:

The product has the smell of Ammonia,it’s a strong alkaline and easy to assorb the CO2,It can be made to the solution with water(Acohol).The tetramethylammonium hydroxide with 5 crystal water is acicular crystal colorless and diliquescence.The melting point is 63?.The boiling point is 120??It will decomposite to trimethylamine and methanol when heating to the biling point.The density of the product is 1.00(25/4?),and it’s a alkali mater with Strong corrosive.Keep the packing seal.It’s easy moisure absorption if expose in the air.The decomposition point is 134?.We call it “temporary catalyst”due to it’s easy to be cleaned out after used as the catalyst and without leaving any residue.

The tetramethylammonium hydroxide can be use as polarographic reagent to Precipitation the ash free hydride when we analysising.




Product Standard:

Item	Test Method	Standard(liquid 25%)	Standard(solid)
Appearance	Visual	Transparent liquid	White
Puirty	Acid-alkali titration	24.5-25.5	=99.0
Chroma(Hazen)	colorimeter	=5	=5
Cl-,%	Mohr method	=0.02	=0.05
Carbonate,%	Acid-alkali titration	=0.1	=0.2
K,ppm	ICP-AES	=0.5	=1
Na,ppm	ICP-AES	=0.5	=1
Ca,ppm	ICP-AES	=0.5	=1
Mg,ppm	ICP-AES	=0.5	=1
Fe,ppm	ICP-AES	=0.5	=1
Ignition residue(260?),%	Heat oven method	------	=0.02
Pellet(=0.5um)	Laser light scattering method	100/ml	------

The Use of Product:

The catalyzer of simemethylphenyl siloxane fliud,Silicone oil diffusion pump,Solvent free silicone molding plastic,organic siliconresin,silicon rubber.

Polarographic reagent in analyzing.

Product purification:to be used as ash free alkali,depost the metallic element.

Brightener detergent,contact substanceto in producing silicon slice.

The detergent ntegrated circuit plate and the anisotropic etchant in Semiconductor micro processing technology.

The abluent to CMP,positive,photoresist develper of ICVLSI and TFI-LCD.

Be widely use in polyester polymer,spinning,plastics,food,leather,wood  

processing,electroplate,microorganism field.




Storage and Protect

This product is easily to deliquescences,please seal it,ventilation and keep dry and keep away from water and insolation,avoid of breathingin, eyes contacting or swallowing.Wear protective equipment,after operating,wash with the clean water.No eating.

Packing:solid ,bottle,bag,carton,liquid,Plastic Drum