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tetra-n-butylowy amonowy wodorowy siarczan TBAHS
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Opis
Tetra-n-butylammonium Hydrogen Sulfate
Other Names: Tetrabutylammonium hydrogen sulfate, TBAHS
CAS Number: 32503-27-8
Sum Formula: C₁₆H₃₇NO₄S
Molar Mass: 339.54 g/mol
Appearance: White crystalline solid or powder
Tetra-n-butylammonium hydrogen sulfate is a quaternary ammonium salt with a hydrogen sulfate counterion. It is commonly used as a phase transfer catalyst and ionic reagent in organic synthesis, enabling reactions between reagents in immiscible phases. It is soluble in both polar and non-polar solvents, making it a versatile tool in laboratory and industrial chemistry.
Chemical and Physical Properties
Density: ~1.05 g/cm³
Melting Point: 215–220°C (decomposes)
Solubility in Water: Readily soluble
Solubility in Organic Solvents: Soluble in alcohols, acetone, and some hydrocarbons
Hygroscopic: Slightly
Stability: Stable under recommended storage conditions
Applications
Used as a phase transfer catalyst in biphasic reaction systems
Facilitates nucleophilic substitutions and oxidation reactions
Applied in the synthesis of organic intermediates and specialty chemicals
Used in electrochemistry and ionic liquid research
Laboratory reagent for reactions requiring enhanced phase contact
Safety
Signal Word: Warning
H302 (90.9%): Harmful if swallowed [Warning Acute toxicity, oral]
H314 (26%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H315 (70.1%): Causes skin irritation [Warning Skin corrosion/irritation]
H318 (24.2%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H319 (73.6%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335 (51.5%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
H412 (24.7%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
First Aid Measures
Eye Contact: Rinse cautiously with water for several minutes. Seek medical attention if irritation persists
Skin Contact: Wash with soap and water. Remove contaminated clothing
Inhalation: Move to fresh air. Seek medical attention if symptoms occur
Ingestion: Rinse mouth with water. Seek medical advice if unwell
Handling and Storage
Store in a tightly sealed container in a cool, dry, and well-ventilated area
Protect from moisture and incompatible substances such as strong oxidizers
Avoid generating dust; use in a fume hood if possible