Tetrabutylammonium hydroxide
What is Tetrabutylammonium hydroxide, cas no:2052-49-5,a producer telling you the result.
CAS NO.2052-49-5
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To begin with, let us tell you what is the basic information of Tetrabutylammonium hydroxide ?
|
Molecular Formula |
C16H37NO |
Molecular Weight |
259.471 |
|
Density |
0.995 |
Boiling Point |
100 °C |
|
Flash Point |
7°C |
Melting Point |
27-30 °C(lit.) |
Like many stuff, it has many synonyms as follows
|
aqueoussolution |
|
tetrabutyl-ammoniuhydroxide |
|
UNII-68I858J9S1 |
|
Tetrabutyl ammonium hydroxide |
|
Tetrabutylammonium h |
|
Tetrabutylammonium hydroxide 30-hydrate |
|
1-Butanaminium, N,N,N-tributyl-, hydroxide (1:1) |
|
N,N,N-Tributyl-1-butanaminium, hydroxide (1:1) |
|
MFCD00009425 |
|
N,N,N-Tributylbutan-1-aminium hydroxide |
|
Tetrabutylammonium hydroxide |
|
Tetrabutylazanium hydroxide |
|
Tetrabutylammoniumhydroxides |
|
tetrabutylazaniuM oxidanide |
|
TBH |
EINECS 218-147-6
First, the chemical is very special, some technical indexes as below
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Physical property data
1. Characteristics: Liquid
2. Density (g/mL, 25 º C): 0.91
3. Relative vapor density (g/mL, air=1): not determined
4. Melting point (º C): 27-30
5. Boiling point (º C): 100
6. Boiling point (º C, 5.5mmHg): undetermined
7. Refractive index: 1.4
8. Flash point (° C): 7
9. Specific rotation (º F): not determined
10. Spontaneous combustion point or ignition temperature (º C): not determined
11. Vapor pressure (kPa, 20 º C): not determined
12. Saturated vapor pressure (kPa, 45 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: Easily soluble in water. Soluble in polar solvents.
toxicology data
1. Acute toxicity: Subcutaneous LDLo in mice: 19mg/kg;
Ecological data
It is slightly harmful to water. Do not let undiluted or large amounts of products come into contact with groundwater, waterways, or sewage systems. Do not discharge materials into the surrounding environment without government permission.
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: 1
4. Number of rotatable chemical bonds: 12
5. Number of tautomers: None
6. Topological molecular polarity surface area 1
7. Number of heavy atoms: 18
8. Surface charge: 0
9. Complexity: 116
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, avoiding oxides
Storage method
Keep the storage container sealed and stored in a cool, dry place, ensuring good ventilation or exhaust in the workspace
Second, the Synthetic Route we will recommend is the most important for your reference?
First, synthesis line of Tetrabutylammonium hydroxide CAS NO.2052-49-5 as follows
Dissolve 40 grams of tetra-n-butyl iodide in 90 milliliters of absolute methanol, add 20 grams of finely powdered pure silver oxide, seal and vigorously shake for 1 hour. Take a few milliliters of the mixture and centrifuge to check for the presence of I -. If it is a positive test, add 2 grams of silver oxide and shake for 30 minutes. If it is a negative test, filter the mixture through a fine sand core funnel, rinse the reaction bottle and funnel with 3 portions of 50ml dry bath benzene, and add the washing solution to the filtrate. Blow pure nitrogen for 5 minutes during storage to prevent absorption of water vapor and carbon dioxide.
Ethanol can be used instead of methanol in the above reaction, but tetra-n-butyl iodide is more stable in methanol.
Third, what is the usage of Tetrabutylammonium hydroxide CAS NO.2052-49-5 ? pleas see below
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purpose
Organic strong base. Phase transfer catalyst.
Besides Safety Information of Tetrabutylammonium hydroxide CAS NO.2052-49-5 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 of Tetrabutylammonium hydroxide CAS NO.2052-49-5? Please see the picture of Tetrabutylammonium hydroxide CAS NO.2052-49-5, below
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Specification of Tetrabutylammonium hydroxide CAS NO.2052-49-5, is below
Apperance: Colourless to faint yellow liquid
Assay: 55% in H2O
IR identity: conform
Packaging and storage: 25kg/plastic drum, 200kg/plastic drum or ton drum, tank. Store in a dark, cool, dry, and well ventilated place.
H-NMR picture of Tetrabutylammonium hydroxide CAS NO.2052-49-5 is as follows,
IR picture of Tetrabutylammonium hydroxide CAS NO.2052-49-5 is as follows,
Reference of Article cited for your reference below,
(1)
Publication Name: Journal of Molecular Graphics and Modelling
Publication Date: 2024-09
PMID: 38838616
DOI: 10.1016/j.jmgm.2024.108805
(2)
Publication Date: 2017
Publication Name: Reaction Kinetics, Mechanisms and Catalysis
(3)
Publication Date: 2016
Publication Name: Cellulose
