87741

Tetramethylammonium hydroxide pentahydrate

≥95.0% (T)

• Synonym(s): TMAH Pentahydrate
• Linear Formula: (CH₃)₄N(OH) · 5H₂O
• CAS Number: 10424-65-4
• Molecular Weight: 181.23
• Beilstein: 3714235
• EC Number: 200-882-9
• MDL number: MFCD00149566
• UNSPSC Code: 12352100
• PubChem Substance ID: 57653264
• NACRES: NA.22

Properties

• vapor density: 1.1 (vs air)
• Assay: ≥95.0% (T)
• form: crystals
• autoignition temp.: 878 °F
• expl. lim.: 36 %
• 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 (SO₄^2-): ≤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

Description

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.

Caution

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

Safety Information

• Pictograms: GHS06,GHS08,GHS05,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 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 Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves