Skip to content

RCRA waste code finder

U173 RCRA waste code Toxic nitrosamine found as a cosmetics contaminant.

  • Free, no account
  • Based on 40 CFR 261.33 and EPA guidance
  • Nothing is stored

Find a federal hazardous waste code

U173, N-Nitrosodiethanolamine.

  • U-listed waste

    N-Nitrosodiethanolamine

U-list unused product.

Toxic U-listed hazardous waste for unused N-nitrosodiethanolamine, a nitrosamine that forms in cosmetics & metalworking fluids.

Is U173 hazardous waste?

Yes, when the listing applies. U173 covers unused N-Nitrosodiethanolamine thrown away as described below, including off-specification product and qualifying residues. It is a nonacute U-listed waste, not an acute P-listed one. The listing turns on the product and how it is discarded, not on a TCLP result alone.

On a required hazardous waste manifest, put U173 in Item 13. Also check the VSQG exemptions and empty-container rules and pharmaceutical containers.

What does U173 cover?

This covers unused N-Nitrosodiethanolamine discarded as pure or technical grade, or in a formulation where it is the only active ingredient. That includes off-specification batches, residues in nonempty containers and cleanup residues from spills of these products. Inactive ingredients don't stop it counting as the sole active ingredient.

CAS
1116-54-7
Table entries
Ethanol, 2,2′-(nitrosoimino)bis-; N-Nitrosodiethanolamine
Hazard codes in the record
T (toxic)

Is waste N-Nitrosodiethanolamine always U173?

CodeWhen it fits
U173The unused chemical is discarded as pure or technical grade, or as the sole active ingredient. Residues from that product count too.
Characteristic waste (D001–D043)A used chemical or a different formulation meets a hazardous waste characteristic. Check any process listings that apply too.

The rows can apply together, so a listed unused product can also exhibit a characteristic. This chemical turning up in a manufacturing waste doesn't make the waste U173. Match the waste's origin, formulation and use history. Mixing listed waste with solid waste, or treating it, usually doesn't remove the listing. That takes an applicable exclusion, exception or approved delisting.