펜타논-2
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펜타논-2 속성
- 녹는점
- -78 °C (lit.)
- 끓는 점
- 101-105 °C (lit.)
- 밀도
- 0.809 g/mL at 25 °C (lit.)
- 증기압
- 27 mm Hg ( 20 °C)
- FEMA
- 2842 | 2-PENTANONE
- 굴절률
- n
20/D 1.39(lit.)
- 인화점
- 45 °F
- 저장 조건
- Store below +30°C.
- 용해도
- 물: 용해성72.6g/L @ 20°C (OECD 테스트 가이드라인 105)
- 물리적 상태
- 액체
- 색상
- 무색 내지 거의 무색
- 냄새
- 디프로필렌 글리콜 중 1.00%. 달콤한 과일향이 나는 천상의 와인 바나나 우디
- 상대극성
- 0.321
- 폭발한계
- 1.56-8.70%(V)
- Odor Threshold
- 0.028ppm
- ?? ??
- 과일 같은
- 생물학적 소스
- synthetic
- 수용성
- 43g/L(20℃)
- 최대 파장(λmax)
- λ: 330 nm Amax: 1.00
λ: 340 nm Amax: 0.10
λ: 350 nm Amax: 0.01
λ: 370-400 nm Amax: 0.005
- JECFA Number
- 279
- Merck
- 14,6114
- BRN
- 506058
- Henry's Law Constant
- 12.30 at 25.00 °C (headspace-GC, Straver and de Loos, 2005)
- 노출 한도
- TLV-TWA 700 mg/m3 (200 ppm); STEL 875 mg/m3 (250 ppm) (ACGIH).
- Dielectric constant
- 16.8(14℃)
- 안정성
- 안정적인. 인화성이 높으며 인화점이 낮습니다. 강염기, 산화제, 환원제와 호환되지 않습니다.
- LogP
- 0.857 at 20℃
- CAS 데이터베이스
- 107-87-9(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | F,Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 11-22-36/37/38 | ||
안전지침서 | 9-16-29-33-37/39-26 | ||
유엔번호(UN No.) | UN 1249 3/PG 2 | ||
OEB | A | ||
OEL | TWA: 150 ppm (530 mg/m3) | ||
WGK 독일 | 1 | ||
RTECS 번호 | SA7875000 | ||
자연 발화 온도 | 941 °F | ||
TSCA | Yes | ||
HS 번호 | 2914 19 90 | ||
위험 등급 | 3 | ||
포장분류 | II | ||
유해 물질 데이터 | 107-87-9(Hazardous Substances Data) | ||
독성 | LD50 orally in rats: 3.73 g/kg (Smyth) | ||
IDLA | 1,500 ppm | ||
기존화학 물질 | KE-28009 |
펜타논-2 C화학적 특성, 용도, 생산
화학적 성질
2-Pentanone has an ethereal, fruity odor.물리적 성질
Clear, colorless, very flammable liquid with a characteristic, pungent odor. An odor threshold concentration of 20 ppbv was determined by a triangular odor bag method (Nagata and Takeuchi, 1990). Cometto-Mu?iz et al. (2000) reported nasal pungency threshold concentration ranging from approximately 500 to 3,200 ppm.출처
Reported found in wood spirit; also present in Ananas sativus; a few banana species, grapevines and some citrus fruits. Also reported found in over 120 foods and beverages including fresh apple, papaya, fresh blackberry, vinegar, wheaten bread, other types of bread, Swiss cheese, Camembert cheese, cheddar cheese, other cheeses, white wine, unprocessed rice, water yam, apricot, orange juice, guava, grapes, pear, pineapple, strawberry, asparagus, carrot, celery, peas, tomato, butter, yogurt, cream, milk powder, buttermilk, boiled egg, caviar, raw fish, cooked chicken and beef, pork fat, pork liver, hop oil, beer, cognac, rum, bourbon whiskey, white wine, cocoa, coffee, roasted filberts and peanuts, peanut oil, potato chips, oat flakes, honey, soybean, passion fruit, plum, beans, mushroom, starfruit, trassi, mango, globe artichoke, rice, soursop, malt, loquat, endive, shrimp, crab, lamb’s lettuce and cape gooseberry.용도
2-Pentanone is used as a solvent for lacquers and surface coatings. It acts as a flavoring agent. It is also used as a solvent for cleaning and degreasing purpose. Further, it serves as an intermediate, paint additive and coating additive.정의
ChEBI: 2-Pentanone is a pentanone carrying an oxo substituent at position 2. It has a role as a plant metabolite. It is a methyl ketone and a pentanone.제조 방법
2-Pentanone was Prepared by dry distillation of a mixture consisting of calcium acetate and calcium butyrate; also by oxidation of sodium or ammonium n-caproate with H2O2.주요 응용
2-Pentanone is a flavoring agent that is a clear liquid, colorless, with flowery odor. it is miscible in alcohol and ether and soluble in water. it is obtained by chemical synthesis. it is also termed methyl propyl ketone. Methyl propyl ketone (MPK) is used as a solvent, substitute for diethyl ketone, in organic synthesis.생산 방법
MPK can be manufactured by oxidation of 2-pentanol, from ethylene and methyl acetoacetate, or by distillation of a mixture of calcium acetate and calcium butyrate. Commercial purity can be 90% MPK; however, some commercial materials are a mixture of MPK and diethylketone with small amounts of sec-amyl acetate.일반 설명
A clear colorless liquid with the odor of fingernail polish. Flash point 45°F. Less dense than water and soluble in water. Hence floats on water. Density 0.809 g / cm3. Vapors heavier than air.공기와 물의 반응
Highly flammable. Soluble in water.반응 프로필
2-Pentanone is incompatible with oxidizing agents, strong bases and reducing agents. Reacts violently with bromine trifluoride .위험도
Flammable, dangerous fire risk, explosivelimits in air 1.6–8.2%. Eye irritant and affects pul-monary function.건강위험
Exposure can cause irritation of eyes, nose and throat.화재위험
Flammable liquid; flash point (closed cup) 7°C (45°F); vapor density 3 (air = 1); vapor pressure 27 torr at 20°C (68°F); the vapor can travel a considerable distance to an ignition source and flash back; autoignition temperature 452°C (846°F); fire- extinguishing agent: “alcohol” foam; a water spray may be used to absorb the heat and flush the spill away from exposures. MPK forms an explosive mixture with air in the range 1.5–8.2% by volume of air. Heating with oxidizers can cause an explosion (U.S. EPA 1988).Safety Profile
Moderately toxic by ingestion and intraperitoneal routes. Mildly toxic by skin contact and inhalation. Human systemic effects by inhalation: headache, nausea, irritation of the respiratory passages, eyes, and skin. A skin irritant. Mutation data reported. A hghly flammable liquid. A very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidzing materials. An explosion hazard in the form of vapor when exposed to heat or flame. To fight fue, use alcohol foam. Mxtures with bromine trifluoride may explode during evaporation. When heated to decomposition it emits acrid smoke and irritating fumes. See also KETONES잠재적 노출
MPK is used as a solvent; as a synthetic food flavoring agent; and in organic synthesis; as a solvent replacement for diethyl ketone and acetone.환경귀착
Chemical/Physical. Atkinson et al. (2000) studied the gas-phase reaction of 2-pentanone with OH radicals in purified air at 25 °C and 740 mmHg. A relative rate constant of 4.56 x 10-12 cm3/molecule·sec was calculated for this reaction. Reaction products identified by GC, FTIR, and atmospheric pressure ionization tandem mass spectroscopy were (with respective molar yields) were: formaldehyde, 1.03; acetaldehyde, 0.51; propanal, 0.19; 2,4-pentanedione, 0.12; and molecular weight 147 organic nitrates.At an influent concentration of 1.0 g/L, treatment with GAC resulted in an effluent concentration of 305 mg/L. The adsorbability of the GAC was 139 mg/g carbon (Guisti et al., 1974).
Will not hydrolyze in water because 3-pentanone does not contain a hydrolyzable group.
운송 방법
UN1249 Methyl propyl ketone, Hazard Class: 3; Labels: 3-Flammable liquid.Purification Methods
Purify the ketone by refluxing it with a little KMnO4, dry it with CaSO4 and distil it. It can be converted to its bisulfite addition compound by shaking with excess saturated aqueous NaHSO3 at room temperature, cooling to 0o, filtering, washing with diethyl ether and drying. Steam distillation of the adduct gives a distillate from which the ketone is recovered, washed with aqueous NaHCO3 and distilled water, dried (K2CO3) and fractionally distilled. [Waring & Garik J Am Chem Soc 78 5198 1956, Beilstein 1 IV 3271.]비 호환성
Ketones are incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, nitrated amines, azo, diazo, azido compounds, carbamates, organic cyanates. Attacks some plastics폐기물 처리
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.펜타논-2 준비 용품 및 원자재
원자재
준비 용품
ETHYL 1-METHYL-5-PROPYL-1H-PYRAZOLE-3-CARBOXYLATE
ETHYL 2,4-DIOXOHEPTANOATE
1-Methyl-5-propyl-1H-pyrazole-3-carboxylic acid amide ,97%
1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID
1-Methyl-3-propyl-1H-pyrazole-5-carboxamide ,97%
5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE
1-Methyl-3-propyl-1H-pyrazole-5-carbohydrazide ,97%
Ketanserin
5-브로모-펜탄-2-원
4-methyldocosane
1-메틸-3-프로피롤라졸-5-카복실산
4-메틸펜타데칸
2-Pentanonecyanohydrin (4111-09-5)
1-메틸-3-프로필-1H-피라졸-5-카르복실산에틸에스테르
1-METHYL-5-PROPYL-1H-PYRAZOLE-3-CARBOXYLIC ACID
운데칸,4-메틸-
4-메틸헥사데칸
4-메틸테트라데칸
5-케토헥산니트릴
2- 펜타 논 옥심
펜타논-2 공급 업체
글로벌( 411)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Weibang Biotechnology Co., Ltd | +8615531157085 |
abby@weibangbio.com | China | 8805 | 58 |
Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 |
sales@hbmojin.com | China | 12830 | 58 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 18911 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21633 | 55 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28172 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22963 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49374 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +8617531153977 |
allison@yan-xi.com | China | 5856 | 58 |
SIMAGCHEM CORP | +86-13806087780 |
sale@simagchem.com | China | 17365 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 |
sales@tnjchem.com | China | 34563 | 58 |