U034 RCRA waste code Chlorinated aldehyde used to make pesticides & sedatives.

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

U-listed waste
Chloral

U-list unused product.

U-listed hazardous waste for unused chloral, a toxic chlorinated aldehyde used to make pesticides & drugs.

Is U034 hazardous waste?

Yes, when the listing applies. U034 covers the unused chloral 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.

U034 is nonacute hazardous waste. On a required hazardous waste manifest, put U034 in Item 13. See VSQG exemptions and empty-container rules and pharmaceutical containers.

What does U034 cover?

This covers unused chloral 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 chloral counting as the sole active ingredient.

CAS: 75-87-6
Table entries: Acetaldehyde, trichloro- and Chloral
Hazard codes in the record: T (toxic)
Rule: 40 CFR 261.33(f)

Is chloral waste always U034?

Code	When it fits
U034	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 U034. 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 wastes take U034?

Waste	When it’s U034
Waste pharmaceuticals	Unused chloral hydrate is discarded and is the sole active ingredient

Which codes sit beside U034?

Code	What it is
U030	4-Bromophenyl phenyl ether
U031	n-Butyl alcohol
U032	Calcium chromate
U033	Carbonic difluoride
U035	Chlorambucil — a chemotherapy drug
U036	Chlordane, alpha & gamma isomers — an insecticide
U037	Chlorobenzene
U038	Chlorobenzilate — an insecticide used against mites