Chemical Detail

Chemical NameChromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 °F.)
Qualifierexcept for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 °F.
Category IDN090
Category DescriptionIncludes any unique chemical substance that contains chromium as part of that chemical’s infrastructure.
De minimis Limit %See notes
Chromium Compounds: chromium VI compounds: 0.1; other chromium compounds: 1.0
De minimis Noteschromium VI compounds: 0.1; other chromium compounds: 1.0
M,P/OU Threshould (lb)25,000/10,000
Listing TypeChemical category
Effective Date1987-01-01
Chemical QualifierYes
MetalYes
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceNo
Structural image
Structural representation of Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 °F.)

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Modified 200064 FR 8774 (2/23/1999)66 FR 24066 (5/11/2001)