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Merck
CN

22139

Celite® Filter Cel

filter aid, slightly calcined

Synonym(s):

Diatomaceous earth, calcined

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About This Item

CAS Number:
NACRES:
SB.54
PubChem Substance ID:
UNSPSC Code:
11101527
EC Number:
293-303-4
MDL number:
Technical Service
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Quality Level

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

matrix

Kieselguhr base material

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

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.

Legal Information

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

Disclaimer

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing


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

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)
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)
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



Global Trade Item Number

SKUGTIN
22139-1KG-F04061838777263
22139-5KG-F04061835561698