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Merck

94098

Sigma-Aldrich

Trockenperlen Orange

Synonym(e):

Aluminiumsilikat, Silicagel orange

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500 G
€ 50,70
1 KG
€ 77,40

€ 50,70


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500 G
€ 50,70
1 KG
€ 77,40

About This Item

CAS-Nummer:
MDL-Nummer:
UNSPSC-Code:
41123003
NACRES:
NA.22

€ 50,70


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Beschreibung

heavy metal free

Form

beads

Kapazität

>30 % absorption capacity (water)(at 80% rel. humidity, 25°C)

SMILES String

[Si](=O)=O

InChIKey

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Allgemeine Beschreibung

Trocknungsperlen Orange (Kieselgel Orange) werden verbreitet als Trocknungsmittel in Laboren eingesetzt und eignen sich zum Trocknen aller Gase und Feststoffe. Sie werden in Exsikkatoren, Trockentürmen und Absorptionsröhrchen eingesetzt. Kieselgel Orange kann aufgrund seiner größeren Oberfläche, die eine hohe Absorptionskapazität ermöglicht, länger gelagert werden. Nach der Aufnahme von Feuchtigkeit (eine Beladung mit einem Gewichtsanteil von etwa 6 %) ändert es außerdem seine Farbe von orange zu farblos.[1][2][3]

Rekonstituierung

Regeneration durch Trocknung bei 130–160 °C; nicht über 160 °C erhitzen

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

nwg

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


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Analysenzertifikate (COA)

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M Zabeti et al.
Bioresource technology, 118, 374-381 (2012-06-19)
Canadian pinewood was pyrolyzed at 450 °C in an Infrared oven and the pyrolysis vapors were converted by passing through a catalyst bed at 450 °C. The catalysts studied were amorphous silica alumina (ASA) containing alkali metal or alkaline earth
Jamieson K Christie et al.
The journal of physical chemistry. B, 116(41), 12614-12620 (2012-09-18)
The low solubility (high durability) of yttrium aluminosilicate (YAS) glass is one of its most important properties for use in in situ radiotherapy. Simple parameters, such as silica or yttria content or network connectivity, are not sufficient to rationalize the
Georgios Toskas et al.
ACS applied materials & interfaces, 3(9), 3673-3681 (2011-08-24)
Ceramic silica (SiO(2)) hybrid nanofibers were prepared by electrospinning of solutions containing biocompatible polymer and modified silica precursors. The new hybrid nanofibers are based on polyethylene oxide (PEO) and a new solution of modified sol-gel particles of mixture containing tetraethoxysilane
Jin-Kyu Kang et al.
Environmental technology, 34(5-8), 703-710 (2013-07-11)
The aim of this study was to investigate the adhesion of bacteria (Escherichia coli) to pyrophyllite clay using batch and flow-through column experiments. Batch results demonstrated that pyrophyllite was effective in removing bacteria (94.5 +/- 2.0%) from aqueous solution (1
Proton conductivity in silica gels
Schober T
Ionics, 12(2), 131-134 (2006)

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

      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?

  3. Bonjour, quelle est la couleur des perles quand c'est sec et quand c’est humide? Quelle est la température et le temps nécessaire pour régénérer ces perles? Merci d'avance!

    1 answer
    1. This material changes its color from orange to colorless after moisture absorption (approx. 6 wt% load). The protocol for the regeneration is to spread the beads in a thin layer (max 10 mm) in a oven tray, preheat the oven at 110-130C, dry the beads for 90 minutes (or more if after 90 minutes the color is not orange again), and let them cool and place in a airtight container.

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