n-발레알데히드
|
|
n-발레알데히드 속성
- 녹는점
- -92 °C
- 끓는 점
- 103 °C
- 밀도
- 0.81 g/mL at 25 °C(lit.)
- 증기압
- 36 hPa (20 °C)
- FEMA
- 3098 | VALERALDEHYDE
- 굴절률
- n
20/D 1.394(lit.)
- 인화점
- 54 °F
- 저장 조건
- Store at +2°C to +8°C.
- 용해도
- 에틸알코올, 에틸에테르 및 기타 일반적인 유기용매에 용해됩니다.
- 색상
- 무색~연황색
- 냄새
- 디프로필렌 글리콜 중 1.00%. 발효된 빵 같은 과일 열매 열매
- ?? ??
- 발효된
- Odor Threshold
- 0.00041ppm
- 폭발한계
- 1.7-6.8%(V)
- 수용성
- 14g/L(20℃)
- 감도
- Air Sensitive
- Merck
- 14,9902
- JECFA Number
- 89
- BRN
- 1616304
- 노출 한도
- TLV-TWA 175 mg/m3 (50 ppm) (ACGIH and OSHA).
- Dielectric constant
- 13.9(Ambient)
- 안정성
- 안정적인. 가연성이 높습니다. 강한 산화제, 산, 강알칼리, 강한 환원제와 호환되지 않습니다.
- LogP
- 1.5 at 25℃ and pH7
- CAS 데이터베이스
- 110-62-3(CAS DataBase Reference)
- NIST
- Pentanal(110-62-3)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | F,Xi | ||
---|---|---|---|
위험 카페고리 넘버 | 11-38-41-36/37/38 | ||
안전지침서 | 16-26-33-39-37/39 | ||
유엔번호(UN No.) | UN 2058 3/PG 2 | ||
WGK 독일 | 1 | ||
RTECS 번호 | YV3600000 | ||
F 고인화성물질 | 10-23 | ||
자연 발화 온도 | 428 °F | ||
위험 참고 사항 | Irritant/Flammable/Air Sensitive | ||
TSCA | Yes | ||
위험 등급 | 3 | ||
포장분류 | II | ||
HS 번호 | 29121900 | ||
유해 물질 데이터 | 110-62-3(Hazardous Substances Data) | ||
독성 | LD50 orally in rats: 5.66 ml/kg (Smyth) | ||
기존화학 물질 | KE-27967 |
n-발레알데히드 C화학적 특성, 용도, 생산
개요
Valeraldehyde is one of the key volatile flavor compounds identified in cooked rice, beef fish meat and uncured ham. Its smell is described as fermented, bready, fruity, nutty, berry.It is an alkyl aldehyde used in flavoring Compounds, resin chemistry, rubber accelerators.화학적 성질
Valeraldehyde is a colorless flammable liquid with a strong acrid, pungent odor. At low levels, the taste is warm, slightly fruity and nut-like.The odor threshold is 0.028 ppm. Slightly soluble in water; soluble in alcohol and ether.출처
Valeraldehyde is naturally occurring (e.g., plant volatile). Reported found among the constituents of several essential oils: Brazilian sassafras, Bulgarian rose, Bulgarian clary sage and others. Also in the distillates from leaves of various Eucalyptus species: E. cinereea, E. globulus, E. dives, E. maideni and E. hemilampra. Also reported found in fresh apple, banana, sweet cherry, black currant berries, fresh blackberry, Bantu beer, plum brandy, cardamom, coriander leaf, unprocessed rice, Bourbon vanilla, cooked shrimp, scallop, hog plum and clary sage.용도
Valeraldehyde is mainly used for hydrogenation to Isoamyl alcohol and oxidation to valeric acid. It can also be used as a raw material for fragrances, resin chemistry, and rubber accelerators.주요 응용
Valeraldehyde is used as a gaseous standard in the study of the sorptive loss pattern for volatile compounds.Valeraldehyde has been used to study its time-weighted average sampling using solid-phase microextraction (SPME) device.
Valeraldehyde is used in flavoring compounds and as a rubber accelerator.
Valeraldehyde is also used extensively as a natural and synthetic flavoring agent. It is used as a top note for flavor to give identity (fruity, nutty) on first impression and is a component of rose oil used to flavor foods, beverages and chewing tobacco (Furia, 1972; Rogers, 1981; NLM, 1996).
Valeraldehyde is mainly used as a chemical intermediate. As a starting material in industrial organic synthesis, it is hydrogenated to 1-pentanol, oxidized to valeric acid, and aminated to 1-aminopentane (Falbe et al., 1985; NLM, 1996).
제조 방법
Valeraldehyde can be prepared by oxidation of the corresponding alcohol, 1-pentanol or by reduction of n-valeric acid (Opdyke, 1979; Lewis, 1993). Valeraldehyde is one of a number of aliphatic aldehydes industrially prepared by the oxo process, which involves the reaction of olefins with carbon monoxide and hydrogen in the presence of a catalyst. Use of a cobalt carbonyl complex as catalyst required high pressure in an older process, which has been largely replaced by a low-pressure process based on rhodium complex catalysts, such as a tris (alkyldiarylphosphine) rhodium carbonyl hydride.정의
ChEBI: Valeraldehyde is a saturated fatty aldehyde composed from five carbons in a straight chain. It has a role as a plant metabolite.일반 설명
A colorless liquid. Slightly soluble in water and less dense than water. Flash point 54°F. Vapors heavier than air. Used to make artificial flavorings and rubber.공기와 물의 반응
Highly flammable. Slightly soluble in water. Valeraldehyde may be sensitive to prolonged exposure to air.반응 프로필
Valeraldehyde is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. Valeraldehyde is incompatible with oxidizing agents, strong bases and strong reducing agents.건강위험
n-Valeraldehyde is a moderate skin andeye irritant. At a high concentration theirritation may be severe; 100 mg/day wasseverely irritating on rabbits’ eyes. Pure liquidcaused severe irritation to guinea pigskin. The systemic toxicity of valeraldehydeis very low.LD50 value, skin (rabbits): 4857 mg/kg
LD50 value, oral (rats): 3200 mg/kg
Inhalation toxicity is very low. Exposure to4000 ppm for air was lethal to rats.
화재위험
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.Safety Profile
Moderately toxic by ingestion. Mddly toxic by inhalation and s h contact. A severe eye and skin irritant. A very dangerous fire hazard when exposed to heat or flame. %%en heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.잠재적 노출
Valeraldehyde is used in food flavorings; in resin chemistry. It is also used in the acceleration of rubber vulcanization.Carcinogenicity
n-Valeraldehyde caused chromosomal and DNA effects in mammalian cells in culture but was not mutagenic in an Ames bacterial test.운송 방법
UN2058 Valeraldehyde, Hazard Class: 3; Labels: 3-Flammable liquid.Purification Methods
Purify pentanal via the bisulfite derivative (see 2-butanone above for the preparation and decomposition of the bisulfite derivative). [Birrell & Trotman-Dickinson J Chem Soc 2059 1960, Beilstein 1 H 676, 1 IV 3268.] The 2,4-dinitrophenylhydrazone [2057-84-3] M 266.3 has m 103-105o (from EtOH). [Beilstein 15 III/IV 429.]비 호환성
Vapor may form explosive mixture with air. 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, caustics, amines.폐기물 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.n-발레알데히드 준비 용품 및 원자재
원자재
펜탄산
1-펜타놀
디프로필 케톤
N-[2-(3,4-dimethoxyphenyl)ethyl]-N-[(5-methyl-2-furyl)methyl]-2-[pentyl-(2-phenylacetyl)amino]acetamide
S-2-Methylbutanal
(R)-2-methylbutanal
trans-3-Pentenal
2-methylglutaraldehyde
준비 용품
n-발레알데히드 공급 업체
글로벌( 285)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12456 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21691 | 55 |
Shanxi Naipu Import and Export Co.,Ltd | +86-13734021967 +8613734021967 |
kaia@neputrading.com | China | 1011 | 58 |
SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 |
sales@sdzschem.com | China | 2931 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 47465 | 58 |
career henan chemical co | +86-0371-86658258 15093356674; |
factory@coreychem.com | China | 29826 | 58 |
Qingdao kaimoshi biochemical technology co., ltd. | +86-0571-87191913 +86-19957014543 |
info@kaimosi.com | CHINA | 144 | 58 |
Neostar United (Changzhou) Industrial Co., Ltd. | +86-519-519-85557386 |
marketing1@neostarunited.com | China | 8349 | 58 |