Tetramethylammonium hydroxide
What is Tetramethylammonium hydroxide, cas no:75-59-2,a producer telling you the result.
CAS NO.75-59-2
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To begin with, let us tell you what is the basic information of Tetramethylammonium hydroxide ?
|
Molecular Formula |
C4H13NO |
Molecular Weight |
91.152 |
|
Density |
0.866 g/mL at 25 °C |
Boiling Point |
110 °C |
|
Flash Point |
80 °F |
Exact Mass |
91.099716 |
Like many stuff, it has many synonyms as follows
|
TMAH |
|
TRITONNE |
|
Developer |
|
ocg945 |
|
TMNOH |
|
AZ-726 |
|
nmd3 |
| tetreamethyl ammonium hydroxide |
First, the chemical is very special, some technical indexes as below
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Physical property data
1. Characteristics: It has a certain ammonia odor, strong alkalinity, and is easy to absorb CO2 from the air. It is usually prepared into 10% and 25% aqueous solutions. Tetramethylammonium hydroxide containing 5 molecules of crystal water is a colorless deliquescent needle shaped crystal. When heated to boiling point, it easily decomposes into trimethylamine and methanol, with a specific gravity of 1.00 (25/4 ℃).
2. Density (g/mL, 25/4 ℃): 1.016
3. Relative vapor density (g/mL, air=1): uncertain
4. Melting point (º C): 62-71 ° C.
5. Boiling point (º C, atmospheric pressure): 120 ℃
6. Boiling point (º C, 5.2kPa): uncertain
7. Refractive index: 1.3806
8. Flash point (º C): uncertain
9. Specific rotation (º): uncertain
10. Spontaneous combustion point or ignition temperature (º C): uncertain
11. Vapor pressure (kPa, 25 º C): uncertain
12. Saturated vapor pressure (kPa, 60 º C): uncertain
13. Combustion heat (KJ/mol): uncertain
14. Critical temperature (º C): uncertain
15. Critical pressure (KPa): uncertain
16. Logarithmic value of oil-water (octanol/water) partition coefficient: uncertain
17. Explosion upper limit (%, V/V): uncertain
18. Lower explosive limit (%, V/V): uncertain
19. Solubility: soluble in water and ethanol, etc.
toxicology data
1. Acute toxicity
Subcutaneous LD50 in mice: 19mg/kg
Rabbit vein LD50: 1mg/kg
Pig skin LD50: 25mg/kg
Frog gastrointestinal LDL: 5mg/kg
Frog LDL0: 1515 ug/kg
two
Main irritant effects:
On the skin: causing corrosive effects on the skin and mucous membranes.
Above the eyes: strong corrosive effects
Sensitization effect: There is no known sensitization effect.
Ecological data
Summary Annotation
Water hazard level 1 (German regulation) (self-assessment through list) This substance poses a slight risk to water.
Do not allow undiluted or large quantities of products to come into contact with groundwater, waterways, or sewage systems.
Do not discharge materials into the surrounding environment without government permission.
Harmful to organic matter in water
A large amount of discharge into rivers and sewers can cause an increase in pH value, and excessively high pH values can be harmful to organic matter in water
Diluting the concentration during use can greatly reduce the pH value, thereby reducing the harm to water caused by product discharge
Molecular structure data
Currently unavailable
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: 0
5. Number of tautomers: None
6. Topological molecule polarity surface area 1
7. Number of heavy atoms: 6
8. Surface charge: 0
9. Complexity: 19.1
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
Currently unavailable
Storage method
This product should be sealed in a cool, dry place and stored away from light.
Second, the Synthetic Route we will recommend is the most important for your reference?
First, synthesis line of Tetramethylammonium hydroxide CAS NO.75-59-2 as follows
Third, what is the usage of Tetramethylammonium hydroxide CAS NO.75-59-2 ? pleas see below
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Usage:
In terms of organosilicon, as a catalyst for dimethyl silicone oil, benzyl silicone oil, organosilicon diffusion pump oil, solvent-free silicone molding plastics, organosilicon resins, silicone rubber, etc. In terms of analysis, it is used as a polarographic reagent and as an ash free base in product purification to precipitate many metal elements. It is commonly used as a brightener, cleaning agent, and etching agent for computer silicon wafer surfaces in the production of organic silicon wafers. This product is a catalyst for organic silicon polymerization. Its advantage is that it has strong alkalinity and is stable at temperatures not exceeding the decomposition point. When exceeding the decomposition point, it rapidly decomposes into trimethylamine and methanol. After catalysis is complete, it is easy to remove without leaving any residue. No pollution to organic silicon products. Therefore, it is also known as a "temporary catalyst". It can be used in polarographic analysis and for precipitating hydrides of many elements without ash content.
Other usages:
Used for the synthesis of 17-β-ESTRADIOL 3-METHYL ETHER Cas no. 1474-53-9
Used for the synthesis of 2-amino-1,7-dimethylpurin-6-one Cas no. 26758-00-9
Used for the synthesis of 3,7,8-trimethylimidazo[4,5-f]quinoxalin-2-amine Cas no. 92180-79-5
Besides Safety Information of Tetramethylammonium hydroxide CAS NO.75-59-2 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 Tetramethylammonium hydroxide CAS NO.75-59-2? Please see the picture of Tetramethylammonium hydroxide CAS NO.75-59-2, below
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Specification of Tetramethylammonium hydroxide CAS NO.75-59-2, is below
Apperance: colorless crystalline powder
Assay: 99 min by HPLC
IR identity: conform
IR picture of Tetramethylammonium hydroxide CAS NO.75-59-2 is as follows,
H-NMR Spectrum picture of Tetramethylammonium hydroxide CAS NO.75-59-2 is as follows,
Reference of Article cited for your reference below,
(1)
Introduction: Context and motivations
Publication Date: 2006
Publication Name: Micromachined Thin-Film Sensors for SOI-CMOS Co-Integration
(2)
Methods of Nanoparticle Synthesis in Microheterogeneous Systems
Publication Date: 2006
Publication Name: Controlled Synthesis of Nanoparticles in Microheterogeneous Systems
(3)
Publication Date: 2004
Publication Name: Electrochemistry of Silicon and Its Oxide
