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Documentos Principais

07-6061

Sigma-Aldrich

Água

Sinônimo(s):

Water

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About This Item

Fórmula linear:
H2O
Número CAS:
Peso molecular:
18.02
Beilstein:
2050024
Número CE:
Número MDL:
Código UNSPSC:
50202301
ID de substância PubChem:
Preço e disponibilidade não estão disponíveis no momento.

Formulário

liquid

disponibilidade

available only in Japan

dilution

(for analytical testing)

índice de refração

n20/D 1.34 (lit.)

pH

6.0-8.0 (25 °C)

p.e.

100 °C (lit.)

pf

0 °C (lit.)

densidade

1.000 g/mL at 3.98 °C (lit.)

cadeia de caracteres SMILES

O

InChI

1S/H2O/h1H2

chave InChI

XLYOFNOQVPJJNP-UHFFFAOYSA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves


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Lucio Isa
Chimia, 67(4), 231-235 (2013-08-24)
Since the seminal work of Pickering and Ramsden more than a century ago, adsorption of solid micro- and nanoparticles at the interface between two fluids has been recognized as a means to enormously improve emulsion stability against coalescence. Despite their
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Reducing tree densities through silvicultural thinning has been widely advocated as a strategy for enhancing resistance and resilience to drought, yet few empirical evaluations of this approach exist. We examined detailed dendrochronological data from a long-term (> 50 years) replicated
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Infestation of eastern hemlock (Tsuga canadensis (L.) Carr.) with hemlock woolly adelgid (HWA, Adelges tsugae) has caused widespread mortality of this key canopy species throughout much of the southern Appalachian Mountains in the past decade. Because eastern hemlock is heavily
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Long-term fire exclusion has altered ecological function in many forested ecosystems in North America. The invasion of fire-sensitive tree species into formerly pyrogenic upland forests in the southeastern United States has resulted in dramatic shifts in surface fuels that have
Katrin Linke et al.
Biochimica et biophysica acta, 1837(1), 14-32 (2013-08-28)
Water is clearly important for the functioning of Photosystem II (PSII). Apart from being the very substrate that needs to be transported in this water oxidation enzyme, water is also vital for the transport of protons to and from the

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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