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Tetramethylammonium hydroxide buy in Hangzhou
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Tetramethylammonium hydroxide

Tetramethylammonium hydroxide

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Description
Description Colorless transparent liquid.
Structural Formula: (CH3)4NOH
Formula Weight: 91.15

Specifications Item Unit MIN MAX
Assay 24.90 25.10
Color Hazen 5
CO32- (Carbonate) ppm 100
Cl- (Chloride ) ppm 0.1
CH3OH (Methanol) ppm 40
Li (Lithium) ppb 5
Na (Sodium) ppb 10
Mg (Magnesium) ppb 5
Al (Aluminium) 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

Physical Properties* Form Liquid
Boiling Point,°C 100.0
Freezing point, °C <-25.0
Viscosity@ 25 °C,cst 2.8
Specific Gravity @ 60 °F 1.022
Flashpoint (Pensky Martens), °F >200
pH >13

*Results based on actual analysis of product; numbers may vary slightly from lot to lot..

Usage widely used in electronic industry , especially as positive resister developer ,silicon wafer wet etchant and super clean solution for CMP process.
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Tetramethylammonium hydroxide
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