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319953

Sigma-Aldrich

Benzene

ACS reagent, ≥99.0%

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500 ML
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$125.00
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$203.00
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500 ML
$90.90
1 L
$125.00
2.5 L
$203.00
4 L
$265.00

About This Item

Empirical Formula (Hill Notation):
C6H6
CAS Number:
71-43-2
Molecular Weight:
78.11
Beilstein/REAXYS Number:
969212
EC Number:
200-753-7
MDL number:
MFCD00003009
UNSPSC Code:
12352002
PubChem Substance ID:
329753940
NACRES:
NA.21
grade:
ACS reagent
assay:
≥99.0%
bp:
80 °C (lit.)
vapor pressure:
166 mmHg ( 37.7 °C)
74.6 mmHg ( 20 °C)

$90.90

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grade

ACS reagent

Quality Level

200

vapor density

2.77 (vs air)

vapor pressure

166 mmHg ( 37.7 °C)
74.6 mmHg ( 20 °C)

assay

≥99.0%

form

liquid

autoignition temp.

1043 °F

expl. lim.

8 %

dilution

(for analytical testing)

impurities

H2SO4, passes test (darkened)
 thiophene, passes test (limit ∼1ppm)
≤0.005% S compounds
≤0.05% water (Karl Fischer)

evapn. residue

≤0.001%

color

APHA: ≤10

refractive index

n20/D 1.501 (lit.)

bp

80 °C (lit.)

mp

5.5 °C (lit.)

density

0.874 g/mL at 25 °C (lit.)

SMILES string

c1ccccc1

InChI

1S/C6H6/c1-2-4-6-5-3-1/h1-6H

InChI key

UHOVQNZJYSORNB-UHFFFAOYSA-N

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General description

Benzene is a monocyclic aromatic compound used as a solvent in chemical reactions. It is an essential raw material for fuels, rubber and plastics products, detergents, pesticides, and pharmaceuticals.

Application

Benzene can be used as a solvent in the:
  • Heck Reaction of vinyl bromides with styrenes to synthesize functionalized 1,3-dienes.
  • Gallium-catalyzed reductive lactonization of γ-keto acids to γ-lactone derivatives.
  • Anionic polymerization of styrene and 1,3-butadiene in the presence of phosphazene as a base.

signalword

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Carc. 1A - Eye Irrit. 2 - Flam. Liq. 2 - Muta. 1B - Skin Irrit. 2 - STOT RE 1

target_organs

Blood

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

12.2 °F

flash_point_c

-11 °C

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS5003
SHBR7267
SHBR5171
SHBS0980
SHBR3387

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David Galbraith et al.
Critical reviews in toxicology, 40 Suppl 2, 1-46 (2010-10-14)
Over the last century, benzene has been a well-studied chemical, with some acute and chronic exposures being directly associated with observed hematologic effects in humans and animals. Chronic heavy exposures to benzene have also been associated with acute myelogenous leukemia
Audrey Smargiassi et al.
Environmental research, 132, 38-45 (2014-04-20)
The acute cardiorespiratory effects of air quality among children living in areas with considerable heavy industry have not been well investigated. We conducted a panel study of children with asthma living in proximity to an industrial complex housing two refineries
Jelle Vlaanderen et al.
Environmental health perspectives, 119(2), 159-167 (2010-10-01)
The use of occupational cohort studies to assess the association of benzene and lymphoma is complicated by problems with exposure misclassification, outcome classification, and low statistical power. We performed meta-analyses of occupational cohort studies for five different lymphoma categories: Hodgkin
Cliona M McHale et al.
Carcinogenesis, 33(2), 240-252 (2011-12-15)
Benzene causes acute myeloid leukemia and probably other hematological malignancies. As benzene also causes hematotoxicity even in workers exposed to levels below the US permissible occupational exposure limit of 1 part per million, further assessment of the health risks associated
César C Martins et al.
Environmental pollution (Barking, Essex : 1987), 188, 71-80 (2014-02-22)
Babitonga Bay is a South Atlantic estuary with significant ecological function; it is part of the last remaining areas of mangrove communities in the Southern Hemisphere. The aim of this study was to determine the spatial distribution of the faecal
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Questions

1–3 of 3 Questions  

  1. 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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  2. 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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  3. wht is the density of this solution

    1 answer

    1. As mentioned in the properties section, the density of this item is 0.874 g/mL at 25 °C (lit.).

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