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Tetramethylammonium Hydroxide

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Tetramethylammonium Hydroxide Specification

Form
Colorless Solution

Other Names
TMAH Tetramethylammonium hydrate

Shape
Liquid

Storage
Store in a cool dry and well-ventilated area away from strong acids and oxidizing agents

Refractive Rate
1.356 (at 20C)

Solubility
Completely soluble in water

Molecular Weight
91.15 g/mol

Ph Level
14 (in aqueous solution)

HS Code
29231000

Density
1.015 Gram per cubic centimeter(g/cm3)

Smell
Ammoniacal

Melting Point
-80C (as aqueous solution)

Boiling point
102C (as aqueous solution)

Structural Formula
(CH3)4N+ OH-

Purity
99%

Molecular Formula
C4H13NO

Poisonous
No

Classification
Organic Base

Chemical Name
Tetramethylammonium Hydroxide

CAS No
75-59-2

EINECS No
200-880-8

Grade
Industrial Grade

Standard
ASTM D1193

Type
Chemical Intermediate

Usage
Used as a developer in lithography etching in silicon wafer production and as a strong base in organic synthesis

Main Material
Tetramethylammonium compound

Application
Semiconductor manufacturing organic synthesis and analytical chemistry

About Tetramethylammonium Hydroxide

Tetra methyl ammonium Hydroxide

CAS NO. : 75-59-2
MOLECULAR FORMULA : (CH3)4NOH
MOLECULAR WEIGHT : 91.15

ASSAY wt % : 25
CO3 (Carbonate) ppm : 300
Ag (Silver) ppb   : 50
Al (Aluminum) ppb : 50
Ca (Calcium) ppb     : 50
Co (Cobalt) ppb : 50
Cr (Chromium) ppb : 50
Cu (Copper) ppb : 50
Fe (Iron) ppb : 50
K (Potassium) ppb : 50
Mg (Magnesium) ppb : 50
Na (Sodium) ppb : 50
Ni (Nickel) ppb : 50
Zn (Zinc) ppb     : 50
Color (AP-HA) : 10

Boiling Point    : deg c 98.9
Freezing Point : deg c <-25
Viscosity @ 25 deg C : CST 3.0
Specific Gravity @ 20 deg C : 1.01
PH     : >13
Odor : Amine

Packaging : 250kg/drum/.

FAQs of Tetramethylammonium Hydroxide:

Q: What is the grade of Tetramethylammonium Hydroxide?

A: Tetramethylammonium Hydroxide is of Industrial Grade.

Q: What are the main applications of Tetramethylammonium Hydroxide?

A: Tetramethylammonium Hydroxide is used in semiconductor manufacturing, organic synthesis, and analytical chemistry.

Q: What is the storage recommendation for Tetramethylammonium Hydroxide?

A: Tetramethylammonium Hydroxide should be stored in a cool, dry, and well-ventilated area away from strong acids and oxidizing agents.

Q: What is the chemical classification of Tetramethylammonium Hydroxide?

A: Tetramethylammonium Hydroxide is classified as an Organic Base.

Q: What is the molecular formula of Tetramethylammonium Hydroxide?

A: The molecular formula of Tetramethylammonium Hydroxide is C4H13NO.

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