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Merck
CN

22152

Celite® 512 medium

filter aid, calcined

Synonym(s):

Diatomaceous earth, calcined

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About This Item

CAS Number:
91053-39-3
NACRES:
SB.54
PubChem Substance ID:
329752275
UNSPSC Code:
11101527
MDL number:
MFCD00132803

Key Documents

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Product Name

Celite® 512 medium, filter aid, calcined

InChI

1S/O2Si/c1-3-2

SMILES string

O=[Si]=O

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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)

Quality Level

200

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Disclaimer

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing

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.

Legal Information

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

target_organs

Lungs

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H372

Hazard Classifications

STOT RE 1 Inhalation

Storage Class

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT6634
MKCQ2233
MKCP6528
MKCN2027
MKBW9985V

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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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