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CAS No. 75-59-2/10424-65-4 Tetramethyl ammonium hydroxide aqueous TMAH-238

Brand:
sinograce
item no.:
TMAH-238
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product origin:
China Anhui
shipping port:
Shanghai And Other Ports

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TMAH-238 Tetramethylammonium hydroxide aqueous（TDS）.pdf

Product Detail

Typical Properties

CAS No.	75-59-2/10424-65-4
Chemical formula	(CH₃)₄NOH·5H₂O
Appearance	Colorless transparent liquid
Specific Gravity @ 20℃	1.021
Item	Unit	Min	Max
Assay	%	2.378	2.382
Color	Hazen		5
CO₃^2- (Carbonate)	ppm		80
Cl^- ( Chloride )	ppm		0.1
CH₃OH (Methanol)	ppm		40
Li (Lithium)	ppb		5
Na (Sodium)	ppb		10
Mg (Magnesium)	ppb		5
Al (Aluminum)	ppb		10
K (Potassium)	ppb		10
Ca (Calcium)	ppb		10
Cr (Chromium)	ppb		5
Mn (Manganese)	ppb		5
Fe (Iron)	ppb		5
Ni (Nickel)	ppb		5
Co (Cobalt)	ppb		5
Cu (Copper)	ppb		5
Zn (Zinc)	ppb		5
Mo (Molybdenum)	ppb		5
Cd (Cadmium)	ppb		5
Pb (Lead)	ppb		5
Ag (Silver)	ppb		5
Particle >0.5um	Ea/ml		100

Application

-Brightener cleaner and touch cutting agent for computer silicon wafer surface during the production of silicon wafer.

-Widely used in electronic industry, especially as positive resister developer, silicon wafer wet etchant and super clean solution for CMP process. Also used in the manufacture of integrated circuits, liquid crystal displays, printed circuit boards, capacitors, sensors, and many other electronic components.

Storage and handling

-Available in 25 kg/barrel

-Store products in tightly closed original containers at 5-40℃

-Shelf life: 12 months from delivery date

-According to non-dangerous goods transport