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22139

Sigma-Aldrich

Celite® Filter Cel

filter aid, slightly calcined

Synonym(s):

Diatomaceous earth, calcined

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About This Item

CAS Number:
91053-39-3
EC Number:
293-303-4
MDL number:
MFCD00132803
UNSPSC Code:
11101527
PubChem Substance ID:
329752265
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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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
GHS08

Signal Word

Danger

Hazard Statements

H372

Precautionary Statements

P260 - P264 - P270 - P314 - P501

Hazard Classifications

STOT RE 1 Inhalation

Target Organs

Lungs

Storage Class Code

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

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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

Sigma-Aldrich

22141

Celite® 545 AW

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

Supelco

1.02692

Celite® 503

Celite® 281 Celite® 281. CAS 68855-54-9, pH 10 (100 g/l, H₂O, 20 °C).

Supelco

1.02686

Celite® 281

Carotenoid pigment loss of freeze-dried plant samples under different storage conditions.
Cinar I.
LWT--Food Science and Technology, 37(3), 363-367 (2004)
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)
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)

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