브롬화부틸

브롬화부틸 속성

브롬화부틸 MSDS

1-Bromobutane

브롬화부틸 C화학적 특성, 용도, 생산

화학적 성질

1-bromobutane appears as a clear colorless to slightly yellow liquid with aroma. Flash point 65°F. Denser than water and insoluble in water, soluble in organic solvents such as alcohol, ether and chloroform.Vapors heavier than air.

용도

1-Bromobutane is used as an intermediate in organic synthesis and as a solvent for cleaning and degreasing. It acts as an alkylating agent as well as to prepare organometallic compounds such as n-butyllithium. It is also involved in the synthesis of procaine and tetracaine. It reacts with magnesium metal to prepare the Grignard reagent, which is used to form carbon-carbon bonds.

주요 응용

1-Bromobutane may be used as a derivatization reagent for multiple functional groups (amino, carboxyl, and phenolic hydroxyl groups) of amino acids to improve hydrophobicities and basicities of the amino acids. It may also be used as an internal standard for the quantification of 1- and 2-bromopropane in human urine by headspace gas chromatography.

일반 설명

1-Bromobutane, an alkyl halide, is an alkylating agent. Its rotational constants, nuclear quadrupole constants and centrifugal distortion constants have been stated based on microwave spectral data. The rate coefficient for the reaction of 1-bromobutane with hydrogen atoms has been reported to be 2.4±1.2x1010cm3mol-1s-1.

공기와 물의 반응

Highly flammable. Insoluble in water.

반응 프로필

1-Bromobutane is incompatible with strong bases and oxidizers [USCG, 1999].

위험도

Flammable, dangerous fire risk.

건강위험

Irritating to the eyes, nose, throat, and upper respiratory tract. Symptoms of exposure include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Irritating to the skin.

Safety Profile

Moderately toxic by intraperitoneal route. Mddly toxic by inhalation. Dangerous fire hazard when exposed to heat, flame, or oxidizers. Violent reaction with bromobenzene + sodium above 30℃. Can react with oxidizing materials. To fight fire, use CO2, dry chemical, mist or spray. See also BROMIDES.

Synthesis

1-bromobutane is a primary alkyl halide (primary alkyl) and therefore it is produced from bimolecular nucleophilic substitution reactions (Sn2).
The preparation method of 1-bromobutane is as follows: stirring n-butanol, sodium bromide, water and sulfuric acid evenly, heating under reflux for 3 hours, steaming out the crude bromobutane, washing with water, treating with cold concentrated sulfuric acid, and distilling to obtain the finished product.
Reaction equation: CH3CH2CH2CH2OH+NaBr+H2SO4→CH3CH2CH2CH2Br+Na2SO4+H2O
This halide is easily prepared by reacting butan-1-ol (primary alcohol) with sodium bromide solution and excess of concentrated sulfuric acid. The reaction between sodium bromide and sulphuric acid origins hydrobromic acid.

운송 방법

UN1126 & UN23391- & 2-Bromobutane, Hazard Class: 3; Labels: 3—Flammable liquid.

Purification Methods

Wash the bromide with conc H2SO4, water, 10% Na2CO3 and again with H2O. Dry it over CaCl2, CaSO4 or K2CO3, and distil it. Redistil it after drying with P2O5, or pass it through two columns containing 5:1 silica gel/Celite mixture and store it with freshly activated alumina. [Beilstein 1 IV 258.]

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. May accumulate static electrical charges and cause ignition of its vapors.

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

브롬화부틸 준비 용품 및 원자재

원자재

준비 용품

브롬화부틸 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hebei Guanlang Biotechnology Co., Ltd.	+8619930503259	cherry@crovellbio.com	China	18430	58
Shanghai Quedan biology science and technology co., ltd	+86-13004146052	lnzc@quedan.com.cn	China	1060	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12450	58
Hebei Guanlang Biotechnology Co,.LTD	+8619930503252	daisy@crovellbio.com	China	5828	58
Anhui Ruihan Technology Co., Ltd	+8617756083858	daisy@anhuiruihan.com	China	994	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20294	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29798	60
Yancheng Longshen Chemical Co.,Ltd.	+86-0515-88706880; +8618352073383	sales@longshenchem.com	China	79	55
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21668	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1807	55

브롬화부틸 관련 검색: