U112 RCRA waste code Flammable solvent in paints, glues & nail polish remover, thrown away unused.

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

U-listed waste
Ethyl acetate

U-list unused product.

Ignitable U-listed hazardous waste for unused ethyl acetate, a common solvent. Also listed as acetic acid ethyl ester, ignitable (I).

Is U112 hazardous waste?

Yes, when the listing applies. U112 is a nonacute U-listed hazardous waste, not an acute P-listed one. It covers unused ethyl acetate thrown away, including off-specification product and qualifying residues. The listing depends on the product and how it is discarded, not on a TCLP result alone.

The listing rests only on ignitability, corrosivity or reactivity. Under 261.3(g) it stops applying once the waste shows no hazardous-waste characteristic. Another listing can still apply, and land disposal restrictions can continue.

Put U112 in Item 13 of a required hazardous waste manifest. The VSQG exemptions and empty-container rules and pharmaceutical containers still apply.

What is U112 waste?

It covers unused ethyl acetate thrown away in pure or technical grade, or in a formulation where it is the only active ingredient. Off-specification batches, nonempty-container residues and spill cleanup residues count too. Inactive ingredients don’t change that.

CAS: 141-78-6
Table entries: Acetic acid ethyl ester (I) and Ethyl acetate (I)
Hazard codes in the record: I (ignitable)
Rule: 40 CFR 261.33(f)

Is ethyl acetate waste always U112?

Code	When it fits
U112	The unused chemical is thrown away pure, technical grade or as the sole active ingredient. Qualifying product residues fit too.
F003	It is spent after solvent use, alone or blended before use only with F003 solvents. Recovery still bottoms fit too.
F001–F005	Before use, the blend held an F003 solvent plus at least 10% by volume in total of F001, F002, F004 or F005 solvents.
Characteristic waste (D001–D043)	A used chemical or a different formulation has a hazardous-waste characteristic. Any process listing that fits can apply too.

The rows can apply together, since a listed unused product can also have a characteristic. A manufacturing waste isn’t U112 just because it contains this chemical. Match the waste’s origin, formulation and use history. Mixing or treating listed waste doesn’t generally remove the listing. That takes an exclusion, an exception or an approved delisting that fits. Using the chemical as an ingredient or reactant doesn’t by itself make it a spent F-listed solvent. Compare each listing’s blend conditions before use.

Which wastes take U112?

Waste	When it’s U112
Unused ethyl acetate	Commercial chemical product thrown away as pure or technical-grade ethyl acetate, or with ethyl acetate as its sole active ingredient.

Which codes sit beside U112?

Code	What it is
U108	1,4-Dioxane
U109	1,2-Diphenylhydrazine
U110	Dipropylamine
U111	Di-n-propylnitrosamine
U113	Ethyl acrylate
U114	Ethylenebisdithiocarbamic acid, salts and esters — pesticide ingredients
U115	Ethylene oxide
U116	Ethylenethiourea