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270709

Sigma-Aldrich

Benzene

suitable for HPLC, ≥99.9%

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About This Item

Fórmula empírica (Notação de Hill):
C6H6
Número CAS:
Peso molecular:
78.11
Beilstein:
969212
Número CE:
Número MDL:
Código UNSPSC:
12190000
ID de substância PubChem:
NACRES:
NA.21
Preço e disponibilidade não estão disponíveis no momento.

grau

HPLC grade

Nível de qualidade

densidade de vapor

2.77 (vs air)

pressão de vapor

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

Ensaio

≥99.9%

Formulário

liquid

temperatura de autoignição

1043 °F

Lim. expl.

8 %

técnica(s)

HPLC: suitable

Impurezas

≤0.02% water (Karl Fischer)

resíduo de evaporação

<0.0005%

cor

APHA: ≤20

índice de refração

n20/D 1.501 (lit.)

p.e.

80 °C (lit.)

pf

5.5 °C (lit.)

densidade

0.874 g/mL at 25 °C (lit.)

λ

H2O reference

Absorção UV

λ: 280 nm Amax: 1.0
λ: 290 nm Amax: 0.15
λ: 300 nm Amax: 0.06
λ: 330 nm Amax: 0.02
λ: 350-400 nm Amax: 0.01

aplicação(ões)

food and beverages

cadeia de caracteres SMILES

c1ccccc1

InChI

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

chave InChI

UHOVQNZJYSORNB-UHFFFAOYSA-N

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Ações bioquímicas/fisiológicas

Environmental carcinogen; hematoxin that is linked to increased incidence of leukemia in humans.

Embalagem

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Palavra indicadora

Danger

Classificações de perigo

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

Órgãos-alvo

Blood

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

12.2 °F - closed cup

Ponto de fulgor (°C)

-11.0 °C - closed cup


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Certificados de análise (COA)

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Luoping Zhang et al.
Critical reviews in toxicology, 32(1), 1-42 (2002-02-16)
Benzene is an established cause of human leukemia that is thought to act by producing chromosomal aberrations and altered in cell differentiation. In several recent studies increased levels of chromosomal aberrations in peripheral blood lymphocytes were correlated with a heightened
Filamentous growth of carbon through benzene decomposition.
Oberlin A, et al.
Journal of Crystal Growth, 32(3), 335-349 (1976)
Benzene forms hydrogen bonds with water.
Suzuki S, et al.
Science, 257(5072), 942-945 (1992)
Use of the CNDO method in spectroscopy. I. Benzene, pyridine, and the diazines.
Del Bene J and Jaffe HH.
J. Chem. Phys. , 48(44), 1807-1813 (1968)
M Kiguchi et al.
Physical review letters, 101(4), 046801-046801 (2008-09-04)
Highly conductive molecular junctions were formed by direct binding of benzene molecules between two Pt electrodes. Measurements of conductance, isotopic shift in inelastic spectroscopy, and shot noise compared with calculations provide indications for a stable molecular junction where the benzene

Questions

1–2 of 2 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

      Helpful?

  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

      Helpful?

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