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Merck

22140

Celite® 545

filter aid, treated with sodium carbonate, flux calcined

Sinonimo/i:

Diatomaceous earth, flux-calcined

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1 KG

85,00 €

5 KG

293,00 €

85,00 €

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Informazioni su questo articolo

Numero CAS:
68855-54-9
Numero CE:
272-489-0
Numero MDL:
MFCD00132803
Codice UNSPSC:
11101527
ID PubChem:
329752266
NACRES:
SB.54

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Stato

powder

Qualità

flux calcined
treated with sodium carbonate

Composizione

Al2O3, 1.0%
CaO, 6.73%
Fe2O3, 0.46%
Na2O + K2O, 1.88%
SiO2, 89.0%

Mediana della dimens. particellare

≤125.30 μm (71% (acc. to Cilas))

pH

>8.5 (25 °C, 10% in aq. suspension)

Stringa SMILE

O=[Si]=O

InChI

1S/O2Si/c1-3-2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Questo articolo
221411.026931.02692
Celite® 545 filter aid, treated with sodium carbonate, flux calcined

Sigma-Aldrich

22140

Celite® 545

Celite® 545 AW filter aid, acid washed, treated with sodium carbonate, flux calcined

Sigma-Aldrich

22141

Celite® 545 AW

Celite® 545 particle size 0.02-0.1 mm

Supelco

1.02693

Celite® 545

Celite® 503 Celite® 503. CAS 68855-54-9, pH 10 (100 g/l, H2O, 20 °C).

Supelco

1.02692

Celite® 503

form

powder

form

powder

form

-

form

-

composition

Al2O3, 1.0% , Fe2O3, 0.46% , SiO2, 89.0% , CaO, 6.73% , Na2O + K2O, 1.88%

composition

Al2O3, 4.0% , CaO, 0.5% , Fe2O3, 1.3% , Na2O + K2O, 3.3% , SiO2, 89.5%

composition

-

composition

-

pH

>8.5 (25 °C, 10% in aq. suspension)

pH

<7 (25 °C, 10% in aq. suspension)

pH

10 (20 °C, 100 g/L in H2O)

pH

10 (20 °C, 100 g/L in H2O)

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

quality

flux calcined, treated with sodium carbonate

quality

acid washed, flux calcined, treated with sodium carbonate

quality

-

quality

-

median particle size

≤125.30 μm (71% (acc. to Cilas))

median particle size

-

median particle size

-

median particle size

-

Descrizione generale

Diatomaceous earth is made up of natural amorphous silica formed from the fossilized skeletons of diatoms.[1] It is extracted, crushed, dried and calcined with flux material. DE is widely used as filler in construction materials, paints and as an anti-caking agent for agricultural chemicals.[2] It has high water and oil absorption ability.[1]

Applicazioni

Diatomaceous earth may be used as an adsorbent for column chromatography.[3]

Note legali

Celite is a registered trademark of Imerys Minerals California, Inc.

Esclusione di responsabilità

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing

Pittogrammi

Health hazard
GHS08

Avvertenze

Danger

Indicazioni di pericolo

H372

Classi di pericolo

STOT RE 1 Inhalation

Organi bersaglio

Lungs

Codice della classe di stoccaggio

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
BCCM8082
BCCL5160
BCCL5159
BCCJ6336
BCCK0476

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Immobilization of lipases on clay, Celite 545, diethylaminoethyl-, and carboxymethyl-Sephadex and their interesterification activity.
Ansari SA and Husain Q.
Biotechnol. Tech., 12(5), 381-384 (1998)
Lactose hydrolysis from milk/whey in batch and continuous processes by concanavalin A-Celite 545 immobilized Aspergillus oryzae ? galactosidase.
Ansari SA and Husain Q.
Food and Bioproducts Processing, 90(2), 351-359 (2012)
Direct immobilization of polyphenol oxidases on Celite 545 from ammonium sulphate fractionated proteins of potato (Solanum tuberosum).
Khan AA, et al.
Journal of Molecular Catalysis. B, Enzymatic, 40(1), 58-63 (2006)
Violeta Chitu et al.
Cell reports, 30(9), 3004-3019 (2020-03-05)
CSF-1R haploinsufficiency causes adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP). Previous studies in the Csf1r+/- mouse model of ALSP hypothesized a central role of elevated cerebral Csf2 expression. Here, we show that monoallelic deletion of Csf2 rescues most behavioral deficits
Yueru Li et al.
The American journal of pathology, 190(9), 1971-1981 (2020-06-27)
Leakage of retinal blood vessels, which is an essential element of diabetic retinopathy, is driven by chronic elevation of vascular endothelial growth factor (VEGF). VEGF quickly relaxes the endothelial cell barrier by triggering signaling events that post-translationally modify pre-existing components
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Domande

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta

    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

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

    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

      Utile?

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