Potassium tert-butoxide
- CAS No.
- 865-47-4
- Chemical Name:
- Potassium tert-butoxide
- Synonyms
- t-BuOK;POTASSIUM TERT-BUTYLATE;POTASSIUM T-BUTOXIDE;KTB;Potassium Tertiary Butoxide;tert-BuOK;Potassium tert-butanolate;tert-Butoxypotassium;tert-butoxide, potassium;PotassiuM tert-butyl alcohol
- CBNumber:
- CB1335932
- Molecular Formula:
- C4H9KO
- Molecular Weight:
- 112.21
- MOL File:
- 865-47-4.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/5/22 17:52:39
| Melting point | 256-258 °C (dec.) (lit.) |
|---|---|
| Boiling point | 275°C |
| Density | 0.910 g/mL at 20 °C |
| vapor pressure | 1 mm Hg ( 220 °C) |
| Flash point | 54 °F |
| storage temp. | Store below +30°C. |
| solubility | Soluble in hexane, toluene, diethyl ether and terahydrofuran. |
| pka | pK1:18(25°C) |
| form | Solution |
| color | White to off-white |
| Specific Gravity | 0.902 |
| PH | 13 (5g/l, H2O, 20℃)Hydrolysis |
| Water Solubility | REACTS |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 3556712 |
| Stability | Stable, but reacts violently with water and acids, possibly leading to fire. Incompatible with water, acids, halogenated hydrocarbons, alcohols, strong oxidizing agents, ketones, carbon dioxide. |
| InChIKey | LPNYRYFBWFDTMA-UHFFFAOYSA-N |
| CAS DataBase Reference | 865-47-4(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Methyl-2-propanol, potassium salt (865-47-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H228-H260-H314 | |||||||||
| Precautionary statements | P210-P231+P232-P260-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| Hazard Codes | F,C,Xi | |||||||||
| Risk Statements | 11-19-22-34-35-14-20-36/37-37 | |||||||||
| Safety Statements | 16-26-36/37/39-43-45-7/9-8-43A-33-27-29 | |||||||||
| RIDADR | UN 3274 3/PG 2 | |||||||||
| WGK Germany | 1 | |||||||||
| F | 10-21 | |||||||||
| Autoignition Temperature | 483 °C | |||||||||
| Hazard Note | Flammable solid/Corrosive | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | I | |||||||||
| HS Code | 29051900 | |||||||||
| NFPA 704 |
|
Potassium tert-butoxide price More Price(27)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 8.43849 | Potassium tert-butylate (~ 20% solution in tetrahydrofuran) for synthesis | 865-47-4 | 50ML | ₹8049.99 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.04918 | Potassium tert-butylate for synthesis | 865-47-4 | 100G | ₹5570 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.43849 | Potassium tert-butylate (~ 20% solution in tetrahydrofuran) for synthesis | 865-47-4 | 250ML | ₹21050 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.04918 | Potassium tert-butylate for synthesis | 865-47-4 | 250G | ₹12620.01 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.04918 | Potassium tert-butylate for synthesis | 865-47-4 | 2.5KG | ₹19050 | 2022-06-14 | Buy |
Potassium tert-butoxide Chemical Properties,Uses,Production
Chemical Properties
white crystalline powder
Uses
Potassium tert-Butoxide is used in the synthesis of many organic compounds primarily as a strong base. In particular, it is used as a reagent in the base- catalyzed carbonylation of amines for the synthesis of N-Formamides.
General Description
This product has been enhanced for catalytic efficiency.
Fire Hazard
Potassium tert-butoxide is a flammable solid.
It ignites on heating. Being very strongly
basic, its reactions with acids are highly
exothermic. Contact of solid powder with
drops of sulfuric acid and vapors of acetic
acid caused ignition after an induction period
of 0.5 and 3 minutes, respectively (Manwaring
1973). Ignition occurs upon reactions
with many common solvents of the
type ketone, lower alcohols, esters, and halogenated
hydrocarbons. Such solvents include
acetone, methyl ethyl ketone, methyl isobutyl
ketone, methanol, ethanol, n-propanol, isopropanol,
ethyl acetate, n-propyl formate,
n-butyl acetate, chloroform, methylene chloride,
carbon tetrachloride, epichlorohydrin,
dimethyl carbonate, and diethyl sulfate
(NFPA 1997). Such ignition may arise from
accidental contact of the alkoxide with these
solvents and may be attributed to sudden
release of energy from exothermic reactions.
However, slow mixing of the powder
with excess solvent will dissipate the
heat. It reacts violently with water, producing
tert-butanol and potassium hydroxide, as
follows:
K―OC―(C4H9)3＋H2O →
tert-C4H9OH +KOH
The addition of potassium tert-butoxide
to the solvent dimethyl sulfoxide can cause
ignition of the latter (Bretherick 1995).
Purification Methods
It sublimes at 220o/1mm. The last traces of tert-BuOH are removed by heating at 150-160o/2mm for 1hour. It is best prepared afresh as likely impurities are tert-BuOH, KOH and K2CO3 depending on its exposure to air. Its solubility at 25-26o in hexane, toluene, Et2O, and THF is 0.27%, 2.27%, 4.34% and 25.0%, respectively. [Feuer et.al. J Am Chem Soc 78 4364, Doering & Urban J Am Chem Soc 78 5938 1956, Beilstein 1 IV 1612.]
Potassium tert-butoxide Preparation Products And Raw materials
Raw materials
Preparation Products
1of8
chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| ANJI BIOSCIENCES | +91-9000100077 +91-9000100077 | Hyderabad, India | 430 | 58 | Inquiry |
| Vardhaman P Golechha | 9704422000 | Telangana, India | 294 | 58 | Inquiry |
| AMINO ORGANICS | +919866989891 | Hyderabad, India | 275 | 58 | Inquiry |
| REDDY N REDDY PHARMACEUTICALS | +91-9848096759 +91-9848096759 | Hyderabad, India | 1989 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Suparna Chemicals Ltd | +91-2222027446 +91-9820623254 | Maharashtra, India | 19 | 58 | Inquiry |
| Sri Neelima Laboratories | +91-7981733602 +91-9849736989 | Telangana, India | 205 | 58 | Inquiry |
| Syrohchem Laboratories Pvt Ltd | +91-7559397527 +91-9370522022 | Maharashtra, India | 18 | 58 | Inquiry |
| Sri Neelima Laboratories | 08048372574Ext 232 | Hyderabad, India | 154 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| ANJI BIOSCIENCES | 58 |
| Vardhaman P Golechha | 58 |
| AMINO ORGANICS | 58 |
| REDDY N REDDY PHARMACEUTICALS | 58 |
| JSK Chemicals | 58 |
| Suparna Chemicals Ltd | 58 |
| Sri Neelima Laboratories | 58 |
| Syrohchem Laboratories Pvt Ltd | 58 |
| Sri Neelima Laboratories | 58 |
Related articles
- Potassium tert-butoxide: physicochemical property and Application
- Potassium tert-butoxide is also known as Potassium 2-methylpropan-2-olate or t-BuOK.
- Apr 17，2024
- The Uses of Potassium Tert-butoxide
- The passage introduces the uses of Potassium tert-butoxide.
- Nov 21，2022
865-47-4(Potassium tert-butoxide)Related Search:
1of4
chevron_right