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Merck
CN

22138

Celite® 535

filter aid, flux calcined

Synonym(s):

Diatomaceous earth, flux-calcined

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About This Item

CAS Number:
68855-54-9
NACRES:
SB.54
PubChem Substance ID:
329752264
UNSPSC Code:
11101527
MDL number:
MFCD00132803

Key Documents

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Product Name

Celite® 535, filter aid, flux calcined

InChI

1S/O2Si/c1-3-2

SMILES string

O=[Si]=O

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

form

powder or granules

quality

flux calcined
treated with sodium carbonate

composition

Al2O3, 4.0%
CaO, 0.5%
Fe2O3, 1.3%
Na2O + K2O, 3.3%
SiO2, 89.6%

loss

≤0.2% loss on ignition, 900 °C

particle size

≤94.3 μm (81% (acc. to Cilas))

pH

>8.5 (25 °C, 10% in aq. suspension)

Quality Level

200

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Related Categories

Application

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

Disclaimer

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing

General description

Diatomaceous earth is made up of natural amorphous silica formed from the fossilized skeletons of diatoms. 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. It has high water and oil absorption ability.

Legal Information

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

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H372

Hazard Classifications

STOT RE 1 Inhalation

target_organs

Lungs

Storage Class

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

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN7166
BCCK0477
BCCJ1151
BCCG3616

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J A Zeevaart
Plant physiology, 47(6), 821-827 (1971-06-01)
The earliest visible responses of spinach plants (Spinacia oleracea L., cv. Savoy Hybrid 612) transferred from short to long days (8 hours of high intensity light supplemented with 16 hours of low intensity illumination from incandescent lamps) were upright leaf
Activity and adsorption of lipase from Nigella sativa seeds on Celite at different pH values.
Akova A and Ustun G.
Biotechnology Letters, 22(5), 355-359 (2000)
Kido Nwe et al.
Bioconjugate chemistry, 20(7), 1412-1418 (2009-06-27)
In this paper, we report a new method to prepare and characterize a contrast agent based on a fourth-generation (G4) polyamidoamine (PAMAM) dendrimer conjugated to the gadolinium complex of the bifunctional diethylenetriamine pentaacetic acid derivative (1B4M-DTPA). The method involves preforming
Induction of p53-independent growth inhibition in lung carcinoma cell A549 by gypenosides.
Journal of cellular and molecular medicine (2015).
Liu JS, et al.
Journal of Cellular and Molecular Medicine, 19(7), 1697-1709 (2015)
H Checkoway et al.
British journal of industrial medicine, 50(7), 586-597 (1993-07-01)
A cohort mortality study was conducted among workers from two plants in the diatomaceous earth mining and processing industry in California. Diatomaceous earth consists of the skeletal remains of diatoms. Exposure to amorphous (non-crystalline) and crystalline silica in the form
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