K178 RCRA waste code Toxic sludge left by the chloride-ilmenite process.

Free, no account
Based on 40 CFR 261.32 and EPA hazardous-waste rules
Nothing is stored

K-listed waste
Ferric chloride manufacturing or storage residue from titanium dioxide production

Industry: Inorganic chemicals.

Toxic K-listed waste from inorganic chemical plants. Residue from making or storing ferric chloride from titanium dioxide acids.

Is K178 hazardous waste?

Yes. K178 is a nonacute K-listed hazardous waste when the waste comes from the named process and stream. The federal table gives it hazard code (T), meaning toxicity.

Source decides a K listing, not a concentration test. A test can add a characteristic code, but it doesn't remove the K178 listing.

On a required hazardous waste manifest, put K178 in Item 13. See VSQG exemptions and empty-container rules.

What does K178 cover?

Residues from making, and storing at the manufacturing site, ferric chloride from acids formed in making titanium dioxide by the chloride-ilmenite process.

Hazard code: (T), toxicity
Industry: Inorganic chemicals
Rule: 40 CFR 261.32

Is ferric chloride residue from titanium dioxide always K178?

Code	When it fits
K178	Residues from manufacturing and manufacturing-site storage of ferric chloride from acids formed during the production of titanium dioxide using the chloride-ilmenite process.
K073	Chlorinated hydrocarbon waste from the purification step of the diaphragm cell process using graphite anodes in chlorine production.
K177	Antimony-oxide production slag, including intermediate-production slag, was disposed of or speculatively accumulated.

The industry, production step and waste form tell these K listings apart, not the chemicals alone. The rows show nearby listed streams, not every code that could fit. Add any characteristic or other listing that also fits, because one waste can carry more than 1 federal code.

When does the old-disposal exception affect K178?

Under 261.4(b)(15), landfill leachate or gas condensate from K178 waste disposed of before May 20, 2002 in an unauthorized state, or before the state listing took effect in an authorized state, is excluded only if it has no hazardous waste characteristic, comes from no other listed hazardous waste, and its discharge is regulated under Clean Water Act section 307(b) or 402. From November 21, 2003, holding it in a surface impoundment before discharge ends the exclusion. The one exception is temporary emergency storage in a double-lined impoundment, followed by compliant management.

Which codes sit beside K178?

Code	What it is
K169	Crude-oil storage-tank sediment from a petroleum refinery
K170	Slurry-oil tank sediment and filter solids from a petroleum refinery
K171	Spent hydrotreating catalyst from a petroleum refinery
K172	Spent hydrorefining catalyst from a petroleum refinery
K174	Wastewater sludge from making ethylene dichloride or vinyl chloride
K175	Wastewater sludge from acetylene-based vinyl chloride production
K176	Baghouse filters from making antimony oxide
K181	Non-wastewater dye or pigment waste meeting annual mass-loading limits