포타슘터셔리부톡사이드
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포타슘터셔리부톡사이드 속성
- 녹는점
- 256-258 °C (dec.) (lit.)
- 끓는 점
- 275°C
- 밀도
- 0.910 g/mL at 20 °C
- 증기압
- 1 mm Hg ( 220 °C)
- 인화점
- 54 °F
- 저장 조건
- Store below +30°C.
- 용해도
- Soluble in hexane, toluene, diethyl ether and terahydrofuran.
- 물리적 상태
- Solution
- 산도 계수 (pKa)
- pK1:18(25°C)
- Specific Gravity
- 0.902
- 색상
- White to off-white
- 수소이온지수(pH)
- 13 (5g/l, H2O, 20℃)Hydrolysis
- 수용성
- REACTS
- 감도
- Moisture Sensitive
- Hydrolytic Sensitivity
- 7: reacts slowly with moisture/water
- BRN
- 3556712
- 안정성
- 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 데이터베이스
- 865-47-4(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | F,C,Xi | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 11-19-22-34-35-14-20-36/37-37 | ||
| 안전지침서 | 16-26-36/37/39-43-45-7/9-8-43A-33-27-29 | ||
| 유엔번호(UN No.) | UN 3274 3/PG 2 | ||
| WGK 독일 | 1 | ||
| F 고인화성물질 | 10-21 | ||
| 자연 발화 온도 | 483 °C | ||
| 위험 참고 사항 | Flammable solid/Corrosive | ||
| TSCA | Yes | ||
| 위험 등급 | 8 | ||
| 포장분류 | I | ||
| HS 번호 | 29051900 | ||
| 기존화학 물질 | KE-24897 |
포타슘터셔리부톡사이드 C화학적 특성, 용도, 생산
화학적 성질
white crystalline powder용도
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.일반 설명
This product has been enhanced for catalytic efficiency.화재위험
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.]포타슘터셔리부톡사이드 준비 용품 및 원자재
원자재
준비 용품
2,4-DICHLORO-5-NITROPYRIDINE
3,5-다이메틸-1-헥신-3-올
ETHYL 5-NITROBENZOFURAN-2-CARBOXYLATE
ISOXAZOLO[5,4-B]PYRIDIN-3-YLAMINE
1-CHLORO-4-ISOCYANOBENZENE
5-CHLOROBENZOFURAN-2-CARBOXYLIC ACID
2-(2-(Diphenylphosphino) 에틸) pyridine
1-(3-(4-AMINO-2,6-DICHLOROPHENOXY)PROPYL)PYRROLIDIN-2-ONE
Ethyl 2-oxocyclopentanecarboxylate
5-Methoxybenzofuran-2-carboxylic acid
1-에틴일시클로헥산올
5-NITRO-2-HYDROXY-4-METHOXYPYRIDINE
4-NITRO-PYRIDIN-3-YLAMINE
2-(DIPHENYLPHOSPHINO)ETHYLTRIETHOXYSILANE
Epoprostenol
5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE
5-NITROBENZOFURAN-2-CARBOXYLIC ACID
5-CHLORO-BENZOFURAN-2-CARBOXYLIC ACID ETHYL ESTER
5-N-PROPYLURACIL
Stavudine
Tacalcitol
ETHYL 7-METHOXYBENZOFURAN-2-CARBOXYLATE
4-PYRIDIN-2-YLISOXAZOL-5-AMINE
4-Morpholinophenylboronic acid
5-METHOXYBENZOFURAN-2-CARBOXYLIC ACID, ETHYL ESTER
9-에틸-3-nitrocarbazole
Rimonabant hydrochloride
4-CHLORO-8-FLUORO-5H-PYRIMIDO[5,4-B]INDOLE
1-ethynyl-4-tert-butyl-cyclohexan-1-ol
Sertraline hydrochloride
2-(ETHYLTHIO)NICOTINIC ACID
3-Amino-1,2-benzisoxazole
테트라키스-[메틸렌 3-(3`,5`-디-t-부틸-4`-하이드록시페닐)프로피오네이트]메탄
6-Chlorooxindole
quinuclidine-3-carboxylic acid
PYRIDINE-2,3,6-TRIAMINE
1R-cis crysanthemic acid
4-CYANO-4-(4-FLUOROPHENYL)CYCLOHEXANONE
레트로졸
1-(3-Hydrazinylpropyl)pyrrolidin-2-one
포타슘터셔리부톡사이드 공급 업체
글로벌( 699)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29922 | 58 |
| Shandong Believe Chemical PTE.LTD | +86-18553607090 +8618553607090 |
1093908296@qq.com | China | 1750 | 58 |
| Hebei Yibangte Import and Export Co. , Ltd. | +86-0311-85030958 +8615532196582 |
lisa@yibangte.com | China | 3023 | 58 |
| Springchem New Material Technology Co.,Limited | +86-021-62885108 +8613917661608 |
info@spring-chem.com | China | 2068 | 57 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29811 | 60 |
| Henan DaKen Chemical CO.,LTD. | +86-371-66670886 |
info@dakenchem.com | China | 18729 | 58 |
| Hangzhou Bayee Chemical Co., Ltd. | 0086-571-86990109 |
rachelhoo@bayeechem.com | China | 104 | 55 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21975 | 55 |
| Hangzhou FandaChem Co.,Ltd. | +8615858145714 |
fandachem@gmail.com | China | 9378 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 |
product@chemlin.com.cn | CHINA | 3012 | 60 |