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22141

Sigma-Aldrich

Celite® 545 AW

filter aid, acid washed, treated with sodium carbonate, flux calcined

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

form

powder

quality

acid washed
flux calcined
treated with sodium carbonate

composition

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

loss

~0.3% loss on ignition, 900 °C

particle size

≤113 μm (82% (acc. to Cilas))

pH

<7 (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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This Item
2214022151525227
Celite&#174; 545 AW filter aid, acid washed, treated with sodium carbonate, flux calcined

Sigma-Aldrich

22141

Celite® 545 AW

Celite&#174; 545 filter aid, treated with sodium carbonate, flux calcined

Sigma-Aldrich

22140

Celite® 545

Celite&#174; 503 filter aid, treated with sodium carbonate, calcined

Sigma-Aldrich

22151

Celite® 503

Celpure&#174; P1000 meets USP/NF testing specifications

Sigma-Aldrich

525227

Celpure® P1000

quality

acid washed, flux calcined, treated with sodium carbonate

quality

flux calcined, treated with sodium carbonate

quality

calcined, treated with sodium carbonate

quality

-

composition

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

composition

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

composition

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

composition

SiO2, 98%

loss

~0.3% loss on ignition, 900 °C

loss

-

loss

~0.2% loss on ignition, 900 °C

loss

-

particle size

≤113 μm (82% (acc. to Cilas))

particle size

-

particle size

≤85.1 μm (80% (acc. to Cilas))

particle size

1.0-2.0 mm

pH

<7 (25 °C, 10% in aq. suspension)

pH

>8.5 (25 °C, 10% in aq. suspension)

pH

>8.5 (25 °C, 10% in aq. suspension)

pH

-

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

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

STOT RE 1 Inhalation

Target Organs

Lungs

Storage Class Code

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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