Important Announcement


ChemIDplus is moving to PubChem in December 2022.
Please see the NLM Technical Bulletin article for more information.

Skip Navigation
ChemIDplus LiteBrowseAdvanced

Substance Name: Diatomite
RN: 68855-54-9

Molecular Formula

  • Unspecified

Classification Codes

Classification Code


Superlist Classification Code

  • Overall Carcinogenic Evaluation: Group 3
* denotes mobile formatted website

Links to Resources

NLM Resources (File Locators)

Regulatory Agencies (Superlist Locators)

Other Resources (Internet Locators)

Names and Synonyms

Name of Substance

  • Diatomite


  • CCRIS 3662
  • Diatomaceous silica, flux-calcined
  • EC 272-489-0
  • EINECS 272-489-0
  • Flux-calcined diatomaceous earth

Systematic Names

  • Diatomaceous earth
  • Kieselguhr, soda ash flux-calcined

Superlist Names

  • Amorphous silica: Flux-calcined diatomaceous earth
  • Silica amorphous diatomaceous earth (uncalcined)
  • Silica, amorphous, diatomaceous earth
  • Silica, amorphous, including natural diatomaceous earth

Registry Numbers

CAS Registry Number

  • 68855-54-9

System Generated Number

  • 0068855549