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470864

Sigma-Aldrich

Bromine

≥99.99% trace metals basis

동의어(들):

Dibromine

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About This Item

실험식(Hill 표기법):
Br2
CAS Number:
7726-95-6
Molecular Weight:
159.81
EC Number:
231-778-1
MDL number:
MFCD00010896
UNSPSC 코드:
12352101
PubChem Substance ID:
24870690
NACRES:
NA.22
제품 470864은(는)귀하의 국가에서 현재 판매되지 않습니다. 고객지원팀으로 연락바랍니다.

vapor density

7.14 (vs air)

Quality Level

100

vapor pressure

175 mmHg ( 20 °C)
671 mmHg ( 55 °C)

분석

≥99.5% (by Na2S2O3, titration)
≥99.99% trace metals basis

저항도

7.8E18 μΩ-cm, 20°C

불순물

≤0.001% I2
≤0.001% S compounds
<100 ppm total metallic impurities

증발 잔류물

≤0.005%

bp

58.8 °C (lit.)

mp

−7.2 °C (lit.)

density

3.119 g/mL at 25 °C (lit.)

음이온 미량물

chloride (Cl-): ≤0.05%

양이온 미량물

Ni: ≤5 ppm
heavy metals: ≤2 ppm

SMILES string

BrBr

InChI

1S/Br2/c1-2

InChI key

GDTBXPJZTBHREO-UHFFFAOYSA-N

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관련 카테고리

애플리케이션

Bromine can be used as a brominating and oxidizing agent in chemical synthesis.[1][2]
It can be used:
  • To brominate alkylbenzenes at the benzylic position using photocatalytic conditions.[1][2]
  • To prepare brominated aromatic compounds by electrophilic aromatic substitution reactions in the presence of Lewis acid catalysts.[1]
  • For the bromination of carbonyl compounds at a carbonyl group via Hell-Volhard-Zelinski reaction in the presence of phosphorus trihalides.[2]
  • To prepare isocyanates, carbamates, or amines by reacting with primary amides in the presence of base via Hofmann rearrangement.[1]

기타 정보

Contains organic bromine compounds

픽토그램

Skull and crossbonesCorrosionEnvironment
GHS06,GHS05,GHS09

신호어

Danger

유해 및 위험 성명서

H314,H330,H400

Hazard Classifications

Acute Tox. 1 Inhalation - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1A

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Faceshields, Gloves, Goggles

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
SHBQ6654
SHBP8808
SHBN5393
MKCK4524
SHBJ1858

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

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문서 라이브러리 방문

Bromine
Goehring RR
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Use of bromine and bromo-organic compounds in organic synthesis
Saikia I, et al.
Chemical Reviews, 116, 6837-7042 (2016)
Nickel-butadiene catalytic system for the cross-coupling of bromoalkanoic acids with alkyl Grignard reagents: a practical and versatile method for preparing fatty acids.
Takanori Iwasaki et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(9), 2956-2960 (2013-02-02)
Teresa M Bisson et al.
Environmental science & technology, 46(21), 12186-12193 (2012-10-02)
Recent laboratory and field-scale experiments demonstrated the potential for brominated industrial solid waste from biomass combustion (Br-Ash) to be an efficient, cost-effective alternative to activated carbon for capturing mercury from coal-fired power plants. To develop this attractive alternative technology to
Kimberly T Barrett et al.
Journal of the American Chemical Society, 135(8), 2963-2966 (2013-02-16)
We report the enantioselective synthesis of atropisomeric benzamides employing catalytic electrophilic aromatic substitution reactions involving bromination. The catalyst is a simple tetrapeptide bearing a tertiary amine that may function as a Brønsted base. A series of tri- and dibrominations were
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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 답변

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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