Tetramethylammonium hydroxide pentahydrate

SIGMA/T7505 - ≥97%

Synonym: TMAH

CAS Number: 10424-65-4
Empirical Formula (Hill Notation): C₄H₁₃NO · 5H₂O
Molecular Weight: 181.23
EC Number: 200-882-9
MDL Number: MFCD00149566
Linear Formula: (CH₃)₄N(OH) · 5H₂O
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-T7505-5G	5 g	$51.40 1/EA	Add To Favorites
45-T7505-25G	25 g	$83.20 1/EA	Add To Favorites
45-T7505-100G	100 g	$255.00 1/EA	Add To Favorites
45-T7505-1KG	1 kg	$1520.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T7505-1KG

Properties
Descriptions
Safety Info.
Basic Data

assay	≥97%
autoignition temp.	878 °F
description	non-ionic
expl. lim.	36 %
InChI	1S/C4H12N.6H2O/c1-5(2,3)4;;;;;;/h1-4H3;6*1H2/q+1;;;;;;/p-1
InChI key	MYXKPFMQWULLOH-UHFFFAOYSA-M
mol wt	181.23 g/mol
mp	67-70 °C (lit.)
Quality Level	200
SMILES string	O.O.O.O.O.[OH-].C[N+](C)(C)C
vapor density	1.1 (vs air)

Application:	Tetramethylammonium hydroxide pentahydrate has been used in a study to assess strains of Pseudomnas species by a single-step gas chromatographic characterization procedure. It has also been used in a study to investigate solid-state metal hydride batteries nickel oxyhydroxide-metal hydride and manganese dioxide-metal hydride.
Application:	Tetramethylammonium hydroxide pentahydrate has been used in the synthesis of silicalite-1 seed crystals.
General description:	Tetramethylammonium hydroxide (TMAOH) is an ion-pairing agent that is usually used in analytical chemistry. It is used in the analysis of marine compounds by thin-layer chromatography-pyrolysis-gas chromatography-mass spectrometry (TLC-pyrolysis-GC/MS) and thermal desorption/capillary GC/inductively coupled plasma mass spectrometry. TMAOH is used in the capillary zone electrophoresis technique for the separation of inorganic anions. Some studies report the oligonucleotide reassociation in the presence of TMAOH. TMAOH aids in the synthesis of organic and inorganic compounds, such as vinyl halides and tetramethylammonium dithiocarboxylates. It is useful in the preparation of iron oxide nanoparticles for use as magnetic resonance imaging contrast agents.
Packaging:	1 kg in glass bottle
Packaging:	5, 25, 100 g in glass bottle

Symbol	GHS05,GHS06,GHS08,GHS09
Signal word	Danger
Hazard statements	H300 + H310 - H314 - H370 - H372 - H411
Precautionary statements	P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
Hazard Codes	T
Risk Statements	24/25-34
Safety Statements	26-36/37/39-45
RIDADR	UN 3423 8 / PGII
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥97%
mp	67-70 °C (lit.)
UNSPSC	12161900

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