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Substance Name: Tridymite
RN: 15468-32-3
InChIKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Molecular Formula

  • O2-Si

Molecular Weight

  • 60.084
 

Classification Codes

Classification Codes

  • Human Data
  • Mutation Data
  • Tumor Data

Superlist Classification Codes

  • Ceiling use 1/2 value calculated for quartz
  • Known to be a Carcinogen
  • TWA (0.05 mg/m3 respirable fraction)
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Names and Synonyms

Results Name

  • Tridymite

Synonyms

  • Christensenite
  • Crystalline silica
  • EINECS 239-487-1
  • Tridimite
  • Tridimite [French]
  • Tridymite
  • Tridymite 118

Systematic Names

  • Silica, crystalline - tridymite
  • Tridymite
  • Tridymite (SiO2)

Superlist Names

  • Silica, crystalline tridymite
  • Silica, crystalline: tridymite
  • Tridymite
  • Tridymite dust
  • Tridymite [Silica, crystalline]

Registry Numbers

CAS Registry Number

  • 15468-32-3

Other Registry Numbers

  • 12414-70-9
  • 1317-94-8

System Generated Number

  • 0015468323

Structure Descriptors

InChI

1S/O2Si/c1-3-2

InChIKey

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Smiles

[Si](=O)=O

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
human TCLo inhalation 16mppcf/8H/17 (16mppcf) LUNGS, THORAX, OR RESPIRATION: "FIBROSIS, FOCAL (PNEUMOCONIOSIS)"

LUNGS, THORAX, OR RESPIRATION: COUGH

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
National Technical Information Service. Vol. PB246-697,
rat LDLo intratracheal 200mg/kg (200mg/kg) LUNGS, THORAX, OR RESPIRATION: "FIBROSIS, FOCAL (PNEUMOCONIOSIS)" British Journal of Industrial Medicine. Vol. 10, Pg. 9, 1953.