Skip Navigation
ChemIDplus A TOXNET DATABASE LiteBrowseAdvanced

Substance Name: Fiberglass
RN: 65997-17-3


  • Synthetic mineral fiber made from sand, limestone, soda; generally coated with phenolformaldehyde resins; morphological similarity to asbestos; potential hazard from air filters; it is mixed with POLYMERS to make fiberglass reinforced polymers.
  • This category encompasses the various chemical substances manufactured in the production of inorganic glasses. For purposes of this category, "glass" is defined as an amorphous, inorganic, transparent, translucent or opaque material traditionally formed by fusion of sources of silica with a flux, such as an alkali-metal carbonate, boron oxide, etc. and a stabilizer, into a mass which is cooled to a rigid condition without crystallization in the case of transparent or liquid-phase separated glass or with controlled crystallization in the case of glass-ceramics. The category consists of the various chemical substances, other than by-products or impurities, which are formed during the production of various glasses and concurrently incorporated into a glass mixture.

Molecular Formula

  • Unspecified

Molecular Weight

  • 328.045

Classification Codes

  • Dental Materials
  • Mutation Data
  • Tumor Data
* denotes mobile formatted website

Links to Resources

Search for this InChIKey on the Web

Names and Synonyms

Name of Substance

  • Fiberglass


  • EC 266-046-0
  • EINECS 266-046-0
  • Fiberglass
  • Fibrous glass
  • Glass
  • Glass enamel 19 E 110
  • Glass fibers
  • Glassy sodium phosphate
  • Lead borosilicate glass enamel flux
  • Man-made Vitreous Fibers
  • Man-made Vitreous Fibres
  • Phosphorus furnace slag
  • Sodium calcium magnesium polyphosphate
  • Sodium calcium magnesium silica polyphosphate
  • Sodium calcium polyphosphate
  • Sodium calcium zinc silica polyphosphate
  • Sodium zinc polyphosphate
  • Sodium zinc potassium polyphosphate
  • Synthetic vitreous fibers
  • UNII-3JRB8A35M0

Systematic Names

  • Fibrous glass
  • Glass, oxide, chemicals

Registry Numbers

CAS Registry Number

  • 65997-17-3


  • 3JRB8A35M0

Other Registry Number

  • 94551-77-6

System Generated Number

  • 0065997173

Structure Descriptors








Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD intratracheal > 20mg/kg (20mg/kg)   American Review of Respiratory Disease. Vol. 141(Suppl), Pg. A3-A937, 1990.
mouse LD intratracheal > 20mg/kg (20mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES American Review of Respiratory Disease. Vol. 141(Suppl), Pg. A3-A937, 1990.