U023 RCRA waste code Pungent chlorinated liquid used to make dyes.
- Free, no account
- Based on 40 CFR 261.33 and EPA guidance
- Nothing is stored
Find a federal hazardous waste code
U023, Benzotrichloride.
U-listed waste
Benzotrichloride
U-list unused product.
ComplyOnSiteIs U023 hazardous waste?
Yes, when the listing applies. U023 covers the unused benzotrichloride described below when it is discarded, including off-specification product and qualifying residues. It is a U-listed waste, not an acute P-listed one. The listing depends on the product and how it is discarded, not on a TCLP result alone.
The table prints different hazard letters for these entries. An entry with no letter is toxic (T) under 261.33(f), so no letter doesn't mean no hazard. “Benzene, (trichloromethyl)-” has no letter, so it counts as T (toxic). “Benzotrichloride (C,R,T)” is marked (C,R,T).
U023 is nonacute hazardous waste. On a required hazardous waste manifest, put U023 in Item 13. See VSQG exemptions and empty-container rules and pharmaceutical containers.
What does U023 cover?
This covers unused benzotrichloride discarded in pure or technical grade, or in a formulation where it is the only active ingredient. It also covers off-specification batches, residues in nonempty containers and spill cleanup residues from those products. Inactive ingredients don't stop benzotrichloride counting as the sole active ingredient.
- CAS
- 98-07-7
- Table entries
- Benzene, (trichloromethyl)- and Benzotrichloride (C,R,T)
- Printed hazard annotations
- “Benzene, (trichloromethyl)-”: unmarked: T (toxic) by default; “Benzotrichloride (C,R,T)”: (C,R,T).
- Rule
- 40 CFR 261.33(f)
Is benzotrichloride waste always U023?
| Code | When it fits |
|---|---|
| U023 | The unused chemical is discarded as a pure or technical grade product or as the sole active ingredient. Residues from that product also count. |
| Characteristic waste (D001–D043) | A used chemical or a different formulation meets a hazardous-waste characteristic. Check any process listings that apply too. |
Both can apply, since a listed unused product can also show a characteristic. Having this chemical in a manufacturing waste doesn't make the waste U023. Match the waste's origin, formulation and use history. Mixing listed waste with solid waste, or treating it, doesn't normally remove the listing. Only an exclusion, an exception or an approved delisting does.
Which codes sit beside U023?
| Code | What it is |
|---|---|
| U019 | Benzene |
| U020 | Benzenesulfonyl chloride |
| U021 | Benzidine |
| U022 | Benzo[a]pyrene |
| U024 | Dichloromethoxy ethane |
| U025 | Dichloroethyl ether |
| U026 | Chlornaphazin |
| U027 | Dichloroisopropyl ether |
Sources
- 40 CFR 261.33 — Discarded commercial chemical products, off-specification species, container residues, and spill residues thereof
- 40 CFR 261.3 — Definition of hazardous waste
- 40 CFR 261.7 — Residues of hazardous waste in empty containers
- 40 CFR 260.10 — Definitions
- 40 CFR 262.14 — Conditions for exemption for a very small quantity generator
- 40 CFR 262.20 — General requirements
- 40 CFR 266.507 — Residues of hazardous waste pharmaceuticals in empty containers
- Hazardous Waste Manifest Instructions