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
Wichtige Dokumente
470864
Brom
≥99.99% trace metals basis
Synonym(e):
Dibromine
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About This Item
≥99.99% trace metals basis
Empfohlene Produkte
Dampfdichte
7.14 (vs air)
Qualitätsniveau
Dampfdruck
175 mmHg ( 20 °C)
671 mmHg ( 55 °C)
Assay
≥99.5% (by Na2S2O3, titration)
≥99.99% trace metals basis
Widerstandsfähigkeit
7.8E18 μΩ-cm, 20°C
Verunreinigungen
≤0.001% I2
≤0.001% S compounds
<100 ppm total metallic impurities
Abdampfrückstand
≤0.005%
bp
58.8 °C (lit.)
mp (Schmelzpunkt)
−7.2 °C (lit.)
Dichte
3.119 g/mL at 25 °C (lit.)
Anionenspuren
chloride (Cl-): ≤0.05%
Kationenspuren
Ni: ≤5 ppm
heavy metals: ≤2 ppm
SMILES String
BrBr
InChI
1S/Br2/c1-2
InChIKey
GDTBXPJZTBHREO-UHFFFAOYSA-N
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Verwandte Kategorien
Anwendung
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]
Sonstige Hinweise
Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Acute Tox. 1 Inhalation - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1A
Lagerklassenschlüssel
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 2
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Faceshields, Gloves, Goggles
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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