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22151

Sigma-Aldrich

Celite® 503

filter aid, treated with sodium carbonate, calcined

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

form

powder

quality

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

≤85.1 μm (80% (acc. to Cilas))

pH

>8.5 (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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1 of 4

This Item
2214052522720199-U
Celite® 503 filter aid, treated with sodium carbonate, calcined

Sigma-Aldrich

22151

Celite® 503

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

Sigma-Aldrich

22140

Celite® 545

Celpure® P1000 meets USP/NF testing specifications

Sigma-Aldrich

525227

Celpure® P1000

Celite® 545 AW reagent grade

Supelco

20199-U

Celite® 545 AW

quality

calcined, treated with sodium carbonate

quality

flux calcined, treated with sodium carbonate

quality

-

quality

-

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%

composition

SiO2, 98%

composition

-

loss

~0.2% loss on ignition, 900 °C

loss

-

loss

-

loss

-

particle size

≤85.1 μm (80% (acc. to Cilas))

particle size

-

particle size

1.0-2.0 mm

particle size

26 μm

pH

>8.5 (25 °C, 10% in aq. suspension)

pH

>8.5 (25 °C, 10% in aq. suspension)

pH

-

pH

-

Application

Celite® 503 may be used as filter aid for the purification and isolation of crystalline desoxyribonuclease.

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(C)

Not applicable


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Celite® 545 particle size 0.02-0.1 mm

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M KUNITZ
The Journal of general physiology, 33(4), 349-362 (1950-03-01)
A crystalline enzyme capable of digesting thymus nucleic acid (desoxyribonucleic acid) has been isolated from fresh beef pancreas. The enzyme called "desoxyribonuclease" is a protein of the albumin type. Its molecular weight is about 60,000 and its isoelectric point is
Dayvson J Palmeira et al.
Molecules (Basel, Switzerland), 16(11), 9697-9713 (2011-11-25)
Lipase-catalyzed kinetic resolution of aryltrimethylsilyl chiral alcohols through a transesterification reaction was studied. The optimal conditions found for the kinetic resolution of m- and p-aryltrimethylsilyl chiral alcohols, led to excellent results, high conversions (c = 50%), high enantiomeric ratios (E
Necla Caliskan et al.
Journal of hazardous materials, 193, 27-36 (2011-07-19)
The removal of Zn(II) ions from aqueous solution was studied using natural and MnO(2) modified diatomite samples at different temperatures. The linear Langmuir, Freundlich and Dubinin-Radushkevich (D-R) adsorption equations were applied to describe the equilibrium isotherms. From the D-R model
Gang Pan et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 13(8), 2205-2212 (2012-01-25)
The formation mechanism of a nanoscale gas state is studied on inorganic clay surfaces modified with hexamethyldisilazane, which show different contact angles in ethanol-water solutions. As the dissolved oxygen becomes oversaturated due to the decrease in ethanol-water ratio, oxygen nanoscale
H Hadjar et al.
Journal of hazardous materials, 188(1-3), 304-310 (2011-02-23)
Hybrid inorganic/organic adsorbents were synthesized using mixtures of diatomite and carbon charcoal as precursors, and explored for the removal of p-cresol from aqueous solution. The carbon/diatomite composites displayed a bimodal and interconnected porous structure which was partially inherited from both

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