Tetrabutylammonium Hydrogen Sulfate

Name: Tetrabutylammonium Hydrogen Sulfate
SKU: 0

CAS No.: 32503-27-8
Molecular Formula: C16H37NO4S
Molecular Weight: 339.53

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product description

Tetrabutylammonium hydrogen sulfate (CAS# 32503-27-8) appears as a white to off-white crystalline powder or crystal under normal temperature and pressure, featuring regular crystal structure, fine powder texture, and no obvious odor.

Chemical Properties

Property	Value
Melting Point	171-174 °C
Boiling Point	213.3-593.92℃[at 101 325 Pa]
Bulk Density	650kg/m3
dDensity	1.01
Vapor Pressure	0Pa at 25℃
Storage Temp.	Store below +30°C.
Solubility	H2O: soluble10% (w/v), clear, colorless
Form	Solution
Specific Gravity	1.01
Color	White to beige
Odor	Amine like
PH	1-2 (100g/l, H2O, 20℃)
PH Range	1 - 2
Water Solubility	Soluble
λmax	λ: 210 nm Amax: 0.06λ: 220 nm Amax: 0.05λ: 230 nm Amax: 0.03λ: 260 nm Amax: 0.02λ: 500 nm Amax: 0.02
Sensitive	Hygroscopic
BRN	3599663
Stability:	Stable, but moisture sensitive. Incompatible with strong oxidizing agents.
InChIKey	SHFJWMWCIHQNCP-UHFFFAOYSA-M
LogP	0.96 at 25℃
CAS DataBase Reference	32503-27-8(CAS DataBase Reference)
NIST Chemistry Reference	Tetrabutylammonium hydrogen sulfate(32503-27-8)
EPA Substance Registry System	Tetrabutylammonium sulfate (1:1) (32503-27-8)

Safety Information

Property	Value
Hazard Symbols	Xn, Xi
Hazard Class Codes	36/37/38-22
Safety Descriptions	26-36-37/39
WGK Germany	3
F	8-10
Hazard Note	Irritant
TSCA	TSCA listed
HS code	29239000
Storage class	8A - Combustible, corrosive substances
Hazard class (category)	Acute toxicity, Category 4, Oral Hazardous to the aquatic environment — long-term hazard, Category 3 Serious eye damage, Category 1 Skin corrosion, Category 1

Product Usage

Tetrabutylammonium Hydrogen Sulfate (TBAHS for short), with CAS No. 32503-27-8 and chemical formula C₁₆H₃₇NO₄S, appears as white crystalline powder, easily soluble in polar solvents such as water and ethanol, with stable chemical properties, combining phase transfer catalysis and acid catalytic performance. Its core application is in the field of organic synthesis. As an efficient phase transfer catalyst, it can promote the reaction between aqueous and organic phases, accelerate nucleophilic substitution, oxidation and other reactions, and improve reaction efficiency and product purity. It can also be used as an acid catalyst for ester synthesis, isomerization and other reactions. In addition, it can be used as an ion-pair reagent to assist chromatographic separation and analytical detection, widely used in fine chemicals, pharmaceutical synthesis, analytical chemistry and other fields, being an indispensable functional chemical raw material.

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