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214477

Silica gel Inorganic Sorbent

high-purity grade (Davisil Grade 923), 100-200 mesh

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Do Państwa/SKUDostępnośćCena netto
50 g
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443,00 zł
250 g
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1290,00 zł
1 kg
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4130,00 zł

Informacje o tej pozycji

Numer CAS:
UNSPSC Code:
12352309
PubChem Substance ID:
NACRES:
SB.52
EC Number:
231-545-4
MDL number:

443,00 zł


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Nazwa produktu

Silica gel, high-purity grade (Davisil Grade 923), pore size 30 Å, 100-200 mesh

grade

high-purity grade (Davisil Grade 923)

Quality Segment

form

fine crystals

manufacturer/tradename

Davisil®

technique(s)

LPLC: suitable

surface area

430-530 m2/g

matrix

Silica

matrix active group

silica

particle size

100-200 mesh, 75-150 μm

pore size

0.40 cm3/g pore volume, 30 Å

bp

2230 °C

mp

>1600 °C

separation technique

hydrophilic interaction (HILIC)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

General description

Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation lresulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction

Application

Silica gel was used to compare MCM-41 type mesoporous adsorbents.[1]

Other Notes

Recommended Applications
Grade 923 meets ASTM D1319 specifications for hydrocarbon analysis

Legal Information

Davisil is a registered trademark of W.R. Grace & Co.-Conn.
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236810236799214396
pore size

0.40 cm3/g pore volume, 30 Å

pore size

1.15 cm3/g pore volume, 150 Å

pore size

0.75 cm3/g pore volume, 60 Å

pore size

0.43 cm3/g pore volume, 22 Å

particle size

100-200 mesh, 75-150 μm

particle size

200-425 mesh, 35-70 μm

particle size

150-250 μm, 60-100 mesh

particle size

28-200 mesh, 75-650 μm

separation technique

hydrophilic interaction (HILIC)

separation technique

hydrophilic interaction (HILIC)

separation technique

hydrophilic interaction (HILIC)

separation technique

hydrophilic interaction (HILIC)

matrix active group

silica

matrix active group

silica

matrix active group

silica

matrix active group

silica

matrix

Silica

matrix

Silica

matrix

Silica

matrix

Silica

technique(s)

LPLC: suitable

technique(s)

LPLC: suitable

technique(s)

LPLC: suitable

technique(s)

LPLC: suitable


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flash_point_f

Not applicable

flash_point_c

Not applicable

Klasa składowania

13 - Non Combustible Solids



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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/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

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