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87741

Tetramethylammonium hydroxide pentahydrate

≥95.0% (T)

Synonym(s):

TMAH Pentahydrate

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About This Item

Linear Formula:
(CH3)4N(OH) · 5H2O
CAS Number:
10424-65-4
Molecular Weight:
181.23
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57653264
EC Number:
200-882-9
Beilstein/REAXYS Number:
3714235
MDL number:
MFCD00149566
Assay:
≥95.0% (T)
Form:
crystals
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vapor density

1.1 (vs air)

Quality Segment

200

assay

≥95.0% (T)

form

crystals

autoignition temp.

878 °F

expl. lim.

36 %

reaction suitability

core: ammonium

impurities

≤0.1% halides (as chloride)

pH

(14 at ca.1,000 g/l at 20 °C (68 °F))

mp

67-70 °C (lit.)

solubility

soluble (2,200 g/l at 15 °C (59 °F))

anion traces

sulfate (SO42-): ≤1000 mg/kg

functional group

amine

SMILES string

O.O.O.O.O.[OH-].C[N+](C)(C)C

InChI

1S/C4H12N.6H2O/c1-5(2,3)4;;;;;;/h1-4H3;6*1H2/q+1;;;;;;/p-1

InChI key

MYXKPFMQWULLOH-UHFFFAOYSA-M

General description

Tetramethylammonium hydroxide pentahydrate is a clathrate hydrate, which shows high proton conductivity. It can readily uptake carbon dioxide. It is a promising candidate for energy devices, gas separation, and gas storage applications.

Application

Tetramethylammonium hydroxide pentahydrate is a clathrate hydrate, which shows high proton conductivity. It can readily uptake carbon dioxide. It is a promising candidate for energy devices, gas separation, and gas storage applications.
Tetramethylammonium hydroxide pentahydrate is a clathrate hydrate, which shows high proton conductivity. It can readily uptake carbon dioxide. It is a promising candidate for energy devices, gas separation, and gas storage applications.

Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. 41) category with silica to (tetrahedral) aluminum ratio as low as 8.5:1.

Disclaimer

material is sensitive vs air/moisture. filling, handling and storage under Argon!

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Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 1 Dermal - STOT SE 1

target_organs

Central nervous system, Liver,thymus

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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