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207888

Sigma-Aldrich

Bromine

Bromine

reagent grade

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100 G
$92.70
500 G
$203.40
4 X 100 G
$345.00

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100 G
$92.70
500 G
$203.40
4 X 100 G
$345.00

About This Item

Fórmula empírica (notación de Hill):
Br2
Número de CAS:
7726-95-6
Peso molecular:
159.81
Número CE:
231-778-1
Número MDL:
MFCD00010896
Código UNSPSC:
12141915
ID de la sustancia en PubChem:
329752027
NACRES:
NA.21

$92.70

Precio de catálogo$103.00Ahorre 10 %
Web-Only Promotion

Disponible para envío el14 de abril de 2025Detalles

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grado

reagent grade

Nivel de calidad

100

densidad de vapor

7.14 (vs air)

presión de vapor

175 mmHg ( 20 °C)
671 mmHg ( 55 °C)

Ensayo

98.0-102.0% (by Na2S2O3, titration)

Formulario

liquid

resistividad

7.8E18 μΩ-cm, 20°C

bp

58.8 °C (lit.)

mp

−7.2 °C (lit.)

densidad

3.119 g/mL at 25 °C (lit.)

cadena SMILES

BrBr

InChI

1S/Br2/c1-2

Clave InChI

GDTBXPJZTBHREO-UHFFFAOYSA-N

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Descripción general

Bromine is present in gaseous form in lower atmosphere generated by marine activity and as a by product produced from the leaded gasoline combustion.[1] It is widely used as a brominating agent.[2]

Aplicación

Bromine may be used as one of the reactants in the preparation of:
  • quinones[3]
  • α,β-dibromosuccinic acid[4]
  • (Z)-ethyl 2-bromo-5-(trimethylsilyl)pent-2-en-4-ynoate[4]
  • α,α′-dibromo-2′,4′-dinitro-2(or3 or 4)-(acetyloxy)bibenzyls[4]
  • dibenzylnaphthols[4]
Bromine may be used to catalyze:
  • Aziridination of olefins with chloramine-T to form N-tosyl aziridines.[5]
  • Conversion of epoxides and CO2 to cyclic carbonates in a continuous flow system.[6]

Palabra de señalización

Danger

Frases de peligro

H314,H330,H400

Clasificaciones de peligro

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

Código de clase de almacenamiento

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
SHBS1836
SHBQ9711
SHBQ9738
SHBQ9710
SHBQ0888

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Reaction of bromine and chlorine with phenolic compounds and natural organic matter extracts-Electrophilic aromatic substitution and oxidation.
Criquet J, et al.
Water Research, 85, 476-486 (2015)
Metal Free Conducting PEDOS, PEDOT, and Their Analogues via an Unusual Bromine-Catalyzed Polymerization.
Patra A, et al.
Macromolecules, 48(24), 8760-8764 (2015)
Use of Bromine and Bromo-Organic Compounds in Organic Synthesis.
Saikia I, et al.
Chemical Reviews (2016)
Bromine-catalyzed aziridination of olefins. A rare example of atom-transfer redox catalysis by a main group element.
Jeong JUK, et al.
Journal of the American Chemical Society, 120(27), 6844-6845 (1998)
Jennifer A Kozak et al.
Journal of the American Chemical Society, 135(49), 18497-18501 (2013-11-22)
A continuous method for the formation of cyclic carbonates from epoxides and carbon dioxide (CO2) is described. The catalysts used are inexpensive and effective in converting the reagents to the products in a residence time (t(R)) of 30 min. The
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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    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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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    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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  3. How long of shelf life does Br2 have

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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Reviews

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  1. UK
    • Review 1
    • Votes 5
    5 out of 5 stars.

    top purchase

    dark brown liquid that brominated my compound, would recommend

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