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334901
Tetramethylammoniumhydroxid -Lösung
25 wt. % in methanol, solution
Synonym(e):
N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH
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Über diesen Artikel
Produktname
Tetramethylammoniumhydroxid -Lösung, 25 wt. % in methanol
vapor pressure
17.5 mmHg ( 20 °C)
Quality Segment
form
liquid
reaction suitability
core: ammonium, reaction type: phase-transfer
concentration
25 wt. % in methanol
impurities
≤10% water, ≤2% chloride
density
0.866 g/mL at 25 °C
functional group
amine
SMILES string
[OH-].C[N+](C)(C)C
InChI
1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1
InChI key
WGTYBPLFGIVFAS-UHFFFAOYSA-M
General description
Tetramethylammonium hydroxide is a quaternary ammonium salt generally used as an anisotropic etchant for silicon due to its high silicon etching rate.
Application
1 of 1
Dieser Artikel | ||
|---|---|---|
| description 25 wt. % in methanol | description ACS reagent | description 10 wt. % in H2O |
| concentration 25 wt. % in methanol | concentration 1.0 M±0.02 M in H2O | concentration 10 wt. % in H2O |
| Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form liquid | form liquid | form - |
| impurities ≤10% water, ≤2% chloride | impurities - | impurities - |
| density 0.866 g/mL at 25 °C | density 1.005 g/mL at 25 °C | density 1.006 g/mL at 25 °C |
| vapor pressure 17.5 mmHg ( 20 °C) | vapor pressure - | vapor pressure 17.5 mmHg ( 20 °C) |
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Signalwort
Danger
Gefahrencodes
Hazard Classifications
Acute Tox. 2 Dermal - Acute Tox. 2 Oral - Acute Tox. 3 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT RE 1 Dermal - STOT SE 1
Zielorgane
Eyes,Central nervous system, Liver,thymus
Lagerklasse
3 - Flammable liquids
Was ist los?
WGK 3
Flammpunkt (°F)
80.6 °F - closed cup
Flammpunkt (°C)
27 °C - closed cup
PSA (Persönliche Schutzausrüstung)
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Zulassungslistungen
Zulassungslistungen werden hauptsächlich für chemische Produkte erstellt. Für nicht-chemische Produkte können hier nur begrenzte Angaben gemacht werden. Kein Eintrag bedeutet, dass keine der Komponenten gelistet ist. Es liegt in der Verantwortung des Benutzers, die sichere und legale Verwendung des Produkts zu gewährleisten.
67-56-1
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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