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22139

Sigma-Aldrich

Celite® Filter Cel

filter aid, slightly calcined

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Synonym(s):
Diatomaceous earth, calcined
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
SB.54

form

powder

quality

slightly calcined

composition

Al2O3, 3.3%
CaO, 0.8%
Fe2O3, 1.4%
Na2O + K2O, 1.0%
SiO2, 89.0%

technique(s)

ion chromatography: suitable

loss

~1.5% loss on ignition, 900 °C

median particle size

≤45.3 μm (82% (acc. to Cilas))

pH

~8.0 (25 °C, 10% in aq. suspension)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Show Differences

1 of 4

This Item
5262662213822140
vibrant-m

22139

Celite® Filter Cel

vibrant-m

526266

Celpure® P100

vibrant-m

22138

Celite® 535

vibrant-m

22140

Celite® 545

technique(s)

ion chromatography: suitable

technique(s)

ion chromatography: suitable

technique(s)

-

technique(s)

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

quality

slightly calcined

quality

-

quality

flux calcined, treated with sodium carbonate

quality

flux calcined, treated with sodium carbonate

loss

~1.5% loss on ignition, 900 °C

loss

-

loss

≤0.2% loss on ignition, 900 °C

loss

-

composition

Al2O3, 3.3% , Fe2O3, 1.4% , SiO2, 89.0% , CaO, 0.8% , Na2O + K2O, 1.0%

composition

SiO2, 98%

composition

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

composition

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

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.

Application

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

Caution

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing

Legal Information

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

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

STOT RE 1 Inhalation

target_organs

Lungs

Storage Class

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable


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Carotenoid pigment loss of freeze-dried plant samples under different storage conditions.
Cinar I.
LWT--Food Science and Technology, 37(3), 363-367 (2004)
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
Manipulating surface wettability and oil absorbency of diatomite depending on processing and ambient conditions.
Ozen I, et al.
Applied Surface Science, 332, 22-31 (2015)

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