아세틸브로마이드
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아세틸브로마이드 속성
- 녹는점
- -96 °C
- 끓는 점
- 75-77 °C(lit.)
- 밀도
- 1.663 g/mL at 25 °C(lit.)
- 증기 밀도
- 4.3 (vs air)
- 증기압
- 92.2 mm Hg ( 25 °C)
- 굴절률
- n
20/D 1.45(lit.)
- 인화점
- >230 °F
- 저장 조건
- Store at <= 20°C.
- 용해도
- 에테르, 클로로포름, 벤젠, 아세톤과 혼합 가능.
- 물리적 상태
- 발연 액체
- 색상
- 무색~짙은 노란색의 투명한
- 냄새
- 매운 냄새
- 수용성
- 물과 반응
- 감도
- Moisture Sensitive
- Merck
- 14,82
- BRN
- 1697546
- Dielectric constant
- 16.5(Ambient)
- InChIKey
- FXXACINHVKSMDR-UHFFFAOYSA-N
- CAS 데이터베이스
- 506-96-7(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | C | ||
---|---|---|---|
위험 카페고리 넘버 | 14-34 | ||
안전지침서 | 26-36/37/39-45-9-25 | ||
유엔번호(UN No.) | UN 1716 8/PG 2 | ||
WGK 독일 | 3 | ||
RTECS 번호 | AO5955000 | ||
F 고인화성물질 | 9-21 | ||
TSCA | Yes | ||
위험 등급 | 8 | ||
포장분류 | II | ||
HS 번호 | 29159080 | ||
유해 물질 데이터 | 506-96-7(Hazardous Substances Data) | ||
기존화학 물질 | 2002-3-2203 |
아세틸브로마이드 C화학적 특성, 용도, 생산
개요
Acetyl bromide is a colourless fuming liquid with pungent odour, is combustible, and turns yellow on exposure to air. It is used as an acetylating agent in the synthesis of fine chemicals, agrochemicals, and pharmaceuticals. It is also used as an intermediate for dyes. Acetylation, a case of acylation, is an organic synthesis process whereby the acetyl group is incorporated into a molecule by substitution for protecting –OH groups.화학적 성질
Acetyl bromide is a colorless, fuming liquid that turns yellow on contact with air. It has a sharp, unpleasant odor. Soluble in benzene, ether and methyl chloride. Reacts violently with water or alcohol.용도
Acetyl Bromide is used as an acetylating agent in the synthesis of fine chemicals, agrochemicals and pharmaceuticals. It is also used as an intermediate for dyes. Further, it reacts with alcohols and amines to produce acetate esters and acetamides. In addition to this, it is involved in the synthetic process of the anti-HIV agent.주요 응용
Acetyl bromide can be used:In the quantification of lignin in cell wall residues of Arabidopsis.
In the total synthesis of cinchona alkaloids named quinidine and quinine.
To prepare 9,10-diarylanthracenes and triarylmethanes by reacting with arenes and various aromatic aldehydes using ZnBr2/SiO2.
To prepare glycosyl bromides from free sugars or their peracetates.
제조 방법
The preparation of acetyl bromide from acetic acid and bromine in the presence of red and yellow phosphorus.Reaction: Acetic anhydride was brominated with bromine at 80°C, and then the bromine was added between 95°C and 125°C. About 2.5h. After the addition was completed, reflux was continued for 3h and left overnight. Refined by fractional distillation.
Acetyl bromide may also be prepared by reaction between phosphorus tribromide and acetic acid:
3CH3COOH + PBr3 → 3 CH3COBr + H3PO3
일반 설명
A colorless fuming liquid with a pungent odor. Vapors irritate eyes and mucous membranes. Corrosive to metals and tissue. Density 13.9 lb / gal.반응 프로필
Acetyl bromide decomposes violently upon contact with water, steam, methanol or ethanol to form hydrogen bromide gas and acetic acid. Reacts vigorously with bases, both organic and inorganic. Incompatible with oxidizing agents and alcohols. Produces highly toxic fumes of bromine and carbonyl bromide when heated to decomposition [Sax, 9th ed., 1996, p. 34]. Vapor forms an explosive mixture with air [Kirk-Othmer, 3rd ed., Vol. 1, 1978, p. 162]. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].건강위험
Exposures to acetyl bromide cause abdominal pain, sore throat, cough, burning sensation, shortness of breath, and respiratory distress. Contact with the skin causes pain, redness, blisters, dermatitis, and skin burn, severe deep burns, loss of vision, shock or collapse. The occupational worker may show delayed symptoms and lung edema. The vapor is corrosive to the eyes, the skin, and the respiratory tract. The irritation caused by acetyl bromide may lead to chemical pneumonitis and pulmonary edema, and may cause burns to the respiratory tract. The target organs include the eyes, skin, and the mucous membranes.화학 반응
Reactivity with Water: Reacts violently, forming corrosive and toxic fumes of hydrogen bromide; Reactivity with Common Materials: Attacks and corrodes wood and most metals in the presence of moisture. Flammable hydrogen gas may collect in enclosed spaces; Stability During Transport: Stable if protected from moisture; Neutralizing Agents for Acids and Caustics: Flood with water, rinse with dilute sodium bicarbonate or soda ash solution; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.Safety Profile
Poison by ingestion, inhalation, skin contact, and intraperitoneal routes. See also HYDROBROMIC ACID and ACETIC ACID. Violent reaction on contact with water, steam, methanol, or ethanol produces toxic and reactive HBr. When heated to decomposition it emits highly corrosive and toxic fumes of carbonyl bromide and bromine. To fight fire, use dry chemical, CO2잠재적 노출
Acetyl bromide is used as an acetylating agent in the organic synthesis of other chemicals, pesticides, perfume, pharmaceuticals, and it is also used as a dye intermediate.저장
Acetyl bromide should be stored in a tightly sealed container, in a cool, dry, well-ventilated area, away from water and incompatible substances.운송 방법
UN1716 Acetyl bromide, Hazard class: 8; Labels: 8-Corrosive materialPurification Methods
Boil acetyl bromide with PBr3/Ac2O for 1hour, then distil the latter off and redistil it. Store it dry. [Burton & Degering J Am Chem Soc 62 227 1940, Beilstein 2 IV 398.] LACHRYMATORY.비 호환성
Acetyl bromide Vapor may form explosive mixture with air. Instability increases as temperature rises, Contact with moisture, water, steam, alcohols cause a violent reaction releasing corrosive carbonyl bromide, hydrogen bromide, and bromine gases. Incompatible with organic solvents, ethers, oxidizers, and strong bases. Corrodes or attacks most metals and wood in the presence of moisture. Contact with combustibles may cause ignition폐기물 처리
Dispose of contents and container to an approved waste disposal plant. All federal, state, and local environmental regulations must be observed. Slow addition to sodium bicarbonate solution in a glass or plastic container. Mix slowly in another container containing lots of water. It is inappropriate and possibly dangerous to the environment to dispose of chemical wasteby flushing them down the toilet or discarding them to the trash주의 사항
Acetyl bromide is combustible and emits irritating or toxic fumes (or gases) in a fire. It should have no contact with naked flames or water. During use, occupational workers should use protective gloves, protective clothing, a face shield or eye protection in combination with breathing protection and should not eat, drink, or smoke. Acetyl bromide decomposes on heating and produces toxic and corrosive fumes, such as hydrogen bromide and carbonyl bromide. It reacts violently with water, methanol, or ethanol to form hydrogen bromide. Acetyl bromide attacks and damages many metals in the presence of water.아세틸브로마이드 준비 용품 및 원자재
원자재
준비 용품
4-(DIMETHYLAMINO)PYRIDINE-2-CARBOXYLIC ACID
아세틸콜린브로마이드;에탄아미늄,2-(아세틸옥시)-N,N,N-트라이메틸-,브로마이드(1:1);(2-아세톡시에틸)트라이메틸암모늄브로마이드
잘시타빈
4-Bromopyridine-2-carboxylic acid
Triphenylmethyl bromide
Cefdinir
DL-CARNITINE
4-Bromo-2-methylpyridine
초산 벤질
1,5-Diacetoxypentane
1-(9-ETHYL-9H-CARBAZOL-3-YL)ETHANONE
4-bromobutan-2-one
S-N-PROPYL THIOACETATE
IRON DODECACARBONYL
5-BROMOPENTYL ACETATE
BROMOMETHYL ACETATE
아세틸브로마이드 공급 업체
글로벌( 359)공급 업체
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Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12457 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
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Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 +86-17331933971 |
deasea125996@gmail.com | China | 2503 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21695 | 55 |
Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 |
fandachem@gmail.com | China | 9348 | 55 |
career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8823 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Huaian yishu technology co.,ltd | 86-0517-85883738 13852390259 |
sales@yishuchem.com | CHINA | 53 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |