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Merck
CN

86882

Tetrabutylammonium hydroxide solution

technical, ~25% in methanol (~0.8 M)

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About This Item

Linear Formula:
(CH3CH2CH2CH2)4N(OH)
CAS Number:
2052-49-5
Molecular Weight:
259.47
UNSPSC Code:
12352100
Beilstein/REAXYS Number:
3571228
MDL number:
MFCD00009425

Key Documents

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InChI key

VDZOOKBUILJEDG-UHFFFAOYSA-M

SMILES string

[OH-].CCCC[N+](CCCC)(CCCC)CCCC

InChI

1S/C16H36N.H2O/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H2/q+1;/p-1

grade

technical

concentration

~25% in methanol (~0.8 M)

impurities

≤3% halides (as bromide)

anion traces

sulfate (SO42-): ≤2000 mg/kg

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Other Notes

Base for performing non-aqueous titrations. Usually, the titrand is prepared by adding benzene giving benzene-methanol solutions (10:1 or 4:1); Replacement of the toxic benzene by toluene as solvent for titrations

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 1

target_organs

Eyes,Central nervous system

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

51.8 °F - closed cup

flash_point_c

11 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

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I. Gyenes
Titration in nichtwassrigen Medien (1970)
J.S. Fritz
Acid-Base Titration in Non-aqueous Solvents (1973)
W. Selig
Microchemical Journal, Devoted to the Application of Microtechniques in All Branches of Science, 23, 466-466 (1978)
W. Huber
Titrations in Non-aqueous Solvents (1967)
Tetrabutylammonium hydroxide as titrant in nonaqueous media.
Harlow GA, et al.
Analytical Chemistry, 28(5), 787-791 (1956)
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