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Merck
CN

392545

Diatomaceous earth

Synonym(s):

Diatomaceous earth, flux-calcined

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About This Item

CAS Number:
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
11101527
MDL number:
Technical Service
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form

powder

Quality Segment

particle size

150 mesh (<=12%, Tyler sieve retain)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

General description

Diatomaceous earth is natural amorphous silica formed from the fossilized skeletons of diatoms. It has high water and oil absorption ability. The potential toxicity of different samples of DE has been assessed.

Application

Diatomaceous earth may be used as an adsorbent for column chromatography.
It may be used in the synthesis of the following:
  • Chitosan modified DE for the abstraction of humic acid from raw water.
  • High purity solar grade silicon (SOG-Si).
  • Porous silica ceramics.
  • Diatomite-based composite with enhanced sorption characteristics.


pictograms

Health hazard

signalword

Danger

hcodes

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

flash_point_f

Not applicable

flash_point_c

Not applicable



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