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94098

Drying pearls orange

Synonym(s):

Aluminum silicate, Silica gel orange

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500 g

Available to ship TODAYfromMILWAUKEE

$79.70
1 kg

Available to ship TODAYfromMILWAUKEE

$125.00

About This Item

CAS Number:
UNSPSC Code:
41123003
NACRES:
NA.22
MDL number:

$79.70


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description

heavy metal free

Quality Level

form

beads

capacity

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

SMILES string

[Si](=O)=O

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

General description

Drying pearls Orange (Silica gel orange), commonly used as a drying agent in laboratories, is suitable for drying all gases and solids. It is used in desiccators, drying towers, and absorption tubes. Silica gel orange provides longer storage conditions due to its large surface area which enables high absorption capacity. It also changes its color from orange to colorless after moisture absorption (approx. 6 wt% load).[1]

Preparation Note

regeneration by drying at 130 - 160 °C; do not heat above 160 °C

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This Item
137671008753698
form

beads

form

-

form

granular

form

powder

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

description

heavy metal free

description

-

description

-

description

-

capacity

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

capacity

≥25 % absorption capacity (water)

capacity

-

capacity

-


Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Alena Kremleva et al.
Physical chemistry chemical physics : PCCP, 14(16), 5815-5823 (2012-03-10)
In a computational study we addressed the adsorption of uranyl UO(2)(2+) on solvated (110) and (010) edge surfaces of pyrophyllite, applying a density functional approach to periodic slab models. We explored bidentate adsorption complexes on various partially deprotonated adsorption sites:
Dun-Yen Kang et al.
ACS applied materials & interfaces, 4(2), 965-976 (2012-01-21)
The fabrication, detailed characterization, and molecular transport properties of nanocomposite membranes containing high fractions (up to 40 vol %) of individually-dispersed aluminosilicate single-walled nanotubes (SWNTs) in poly(vinyl alcohol) (PVA), are reported. The microstructure, SWNT dispersion, SWNT dimensions, and intertubular distances
Jinyang Li et al.
Investigative ophthalmology & visual science, 53(9), 5675-5685 (2012-07-28)
To compare different methods of glycerol-preserved corneas intended for deep anterior lamellar keratoplasty (DALK). We analyzed transparency, transmittance, thickness, biomechanics, morphology, and antigenicity of donor corneas preserved by four different glycerol-based methods (n = 6 per group) for 3 months



Global Trade Item Number

SKUGTIN
94098-500G04061833286609
94098-1KG04061833286593

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/418/501/product-dating-information-06-25-mk.pdf

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  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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