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22152

Sigma-Aldrich

Celite® 512 medium

filter aid, calcined

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

Quality Level

form

powder

quality

calcined

composition

Al2O3, 4.0%
CaO, 0.6%
Fe2O3, 1.1%
Na2O + K2O, 1.1%
SiO2, 91.5%

median particle size

16.4 μm (acc. to granulometric method (laser sizer))

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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General description

Celite 512 medium is a filter aid derived from diatomaceous earth. 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.

Packaging

5 kg in fiber drum
1 kg in poly bottle

Caution

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing

Legal Information

6538 is a trademark of American Type Culture Collection
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

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Brian R McMinn et al.
Journal of virological methods, 179(2), 423-428 (2011-12-06)
The effective recovery of adenovirus from water is a critical first step in developing a virus occurrence method able to provide accurate data for risk assessments and other applications. During virus concentration, electropositive filters are typically eluted with beef extract
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)
Federica Maraschi et al.
Analytical biochemistry, 426(2), 142-146 (2012-05-01)
This article presents the first results demonstrating that total silicon trace concentration in human ventricular whole blood may be used as a further marker in the diagnosis of drowning. The difference in silicon content between the left and right ventricles

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