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419931

Filter agent

Celite® 545

Synonym(s):

Diatomaceous earth, flux-calcined

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About This Item

CAS Number:
68855-54-9
NACRES:
SB.54
PubChem Substance ID:
329756171
UNSPSC Code:
11101527
MDL number:
MFCD00132803
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form

powder

Quality Level

100

manufacturer/tradename

Celite® 545

parameter

4.0 (Permeability(Darcy))

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

General description

Filter agent (diatomaceous earth) is made up of natural amorphous silica formed from the fossilized skeletons of diatoms. It is extracted, crushed, dried and calcined with or without flux material. DE is widely used as filler in construction materials, paints and as anti-caking agent for agricultural chemicals. It has high water and oil absorption ability. The potential toxicity of different samples of DE has been assessed.

Application

Filter agent (diatomaceous earth) may be used in the following processes:
  • As an adsorbent for column chromatography.
  • Synthesis of chitosan modified diatomaceous earth for the abstraction of humic acid from raw water.
  • Synthesis of porous silica ceramics.

Legal Information

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

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pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H372

Hazard Classifications

STOT RE 1 Inhalation

target_organs

Lungs

Storage Class

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

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Porous ceramic monoliths based on diatomite.
Saponjic A, et al.
Ceramics International, 41(8) , 9745-9752 (2015)
Study on Adsorption Removal of Humic Acid in Water by Modified Clays.
Wang YH, et al.
Applied Mechanics and Materials, 707, 247-250 (2015)
The global variability of diatomaceous earth toxicity: a physicochemical and in vitro investigation.
Nattrass C, et al.
Journal of Occupational Medicine and Toxicology (London, England), 10(1), 25-25 (2015)
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