Tetrabutylammonium hydrogen sulfate
What is Tetrabutylammonium hydrogen sulfate, cas no:32503-27-8,a producer telling you the result.
CAS NO.32503-27-8
If you need the products .Please send your inquiry to us through e-mail： sales@yuansu-reagent.com
To begin with, let us tell you what is the basic information ofTetrabutylammonium hydrogen sulfate ?
|
Molecular Formula |
C16H37NO4S |
Molecular Weight |
339.53 |
|
Density |
1.010 g/cm3 |
Melting Point |
171-174 °C |
Like many stuff, it has many synonyms as follows
|
tetrabutylazanium hydrogen sulfate |
|
Tetrabutylammonium bisulfate |
|
Tetrabutylammonium hydrogen sulfate |
|
Tetra-n-Butylammonium Hydrogen Sulfate |
First, the chemical is very special, some technical indexes as below
If you need the products .Please send your inquiry to us through e-mail： sales@yuansu-reagent.com
Physical property data
1. Appearance: Crystalline, easily hygroscopic
2. Density (g/mL, 20 ℃): undetermined
3. Relative vapor density (g/mL, air=1): not determined
4. Melting point (º C): 169~171
5. Boiling point (º C, atmospheric pressure): undetermined
6. Boiling point (º C, KPa）： undetermined
7. Refractive index: undetermined
8. Flash point (º C): undetermined
9. Specific rotation (º): not determined
10. Spontaneous combustion point or ignition temperature (º C): not determined
11. Vapor pressure (Pa, 20 º C): not determined
12. Saturated vapor pressure (KPa, 25 º C): not determined
13. Combustion heat (KJ/mol): undetermined
14. Critical temperature (º C): not determined
15. Critical pressure (KPa): undetermined
16. Logarithmic value of oil-water (octanol/water) partition coefficient: undetermined
17. Explosion upper limit (%, V/V): undetermined
18. Lower explosive limit (%, V/V): not determined
19. Solubility: soluble in water
toxicology data
Acute toxicity:
Oral LD50 555mg/kg (mus)
Main irritant effects:
On the skin: irritates the skin and mucous membranes.
Above the eyes: the impact of stimulation.
Sensitization effect: There is no known sensitization effect.
Ecological data
Usually, it is slightly harmful to water. Do not discharge materials into the surrounding environment without government permission.
Molecular structure data
None
Calculate chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 1
3. Number of hydrogen bond acceptors: 4
4. Number of rotatable chemical bonds: 12
5. Number of tautomers: None
6. Topological molecule polarity surface area 85.8
7. Number of heavy atoms: 22
8. Surface charge: 0
9. Complexity: 192
10. Number of isotopic atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 2
Nature and stability
If used and stored according to specifications, it will not decompose and there are no known hazardous reactions
Avoid oxides
Storage
Second, the Synthetic Route we will recommend is the most important for your reference?
First, synthesis line ofTetrabutylammonium hydrogen sulfate CAS NO.32503-27-8 as follows
Synthetic method
1. Add 185kg of iodobutane and 185kg of tributylamine into the reaction kettle in sequence, add 500L of acetonitrile as the solvent, and heat and reflux under stirring for 1 hour. Cool to room temperature, add 140 kg of methyl hydrogen sulfate, reflux for 8 hours. Steam out the by-product iodobutane, and then steam out acetonitrile under reduced pressure. Add dilute hydrochloric acid to the residue for acidic hydrolysis, and feed the hydrolysis product into a distillation tower to first evaporate methanol and water, and then steam the product tetra-n-butylammonium hydrogen sulfate under reduced pressure. Repeat with ethyl acetate to obtain pure product.
2. Add 98 grams of sulfuric acid to 259 grams of tetra-n-butyl hydroxide aqueous solution, stir thoroughly, and concentrate under reduced pressure. The residue was recrystallized from methyl ethyl ketone to obtain pure product
Third, what is the usage of Tetrabutylammonium hydrogen sulfate CAS NO.32503-27-8 ? pleas see below
If you need the products .Please send your inquiry to us through e-mail：sales@yuansu-reagent.com
Main usages:
1. Phase transfer catalyst. Ion pair chromatography reagents.
2. Preparation of methylenedicarboxylic acid esters, synthesis of ethers, indole N-alkanes
3.TBAHS is commonly used as a sulfur source in organic synthesis, especially in sulfur isomerization reactions.
4.It can also be used as an acidic catalyst and hydrogen ion scavenger.
5.TBAHS can be used for synthesizing and modifying functional materials, such as catalysts and nanomaterials.
Besides Safety Information ofTetrabutylammonium hydrogen sulfate CAS NO.32503-27-8 is also important when handling it
|
Hazard Codes |
Xi |
|
WGK Germany |
3 |
|
H．S．Code： |
2923 9000.90 |
|
TSCA |
Yes |
|
HazardClass |
IRRITANT |
What is the appearance ofTetrabutylammonium hydrogen sulfate CAS NO.32503-27-8? Please see the picture ofTetrabutylammonium hydrogen sulfate CAS NO.32503-27-8, below
If you need the products .Please send your inquiry to us through e-mail： sales@yuansu-reagent.com
Specification ofTetrabutylammonium hydrogen sulfate CAS NO.32503-27-8, is below
Apperance: White crystalline solid
Assay: 99 min by GC
IR identity: conform
IR picture of Tetrabutylammonium hydrogen sulfate CAS NO.32503-27-8 is as follows,
H-NMR Spectrum picture of Tetrabutylammonium hydrogen sulfate CAS NO.32503-27-8 is as follows,
Reference of Article cited for your reference below,
(1)
Determination of Adenylates and Adenylate Energy Charge
Publication Date: 2005
Publication Name: Monitoring and Assessing Soil Bioremediation
(2)
Dynamic Chemistry of Anion Recognition
PMID: 21710377
Publication Date: 2011
Publication Name: Constitutional Dynamic Chemistry
(3)
Publication Date: 2007
Publication Name: Oxidation of Primary Alcohols to Carboxylic Acids
