P121 RCRA waste code Cyanide salt from plating baths, discarded unused.
- Free, no account
- Based on 40 CFR 261.33 and EPA guidance
- Nothing is stored
Find a federal hazardous waste code
P121, Zinc cyanide.
Acute hazardousP-listed waste
Zinc cyanide
P-list unused product.
ComplyOnSiteIs P121 hazardous waste?
Yes, when the listing applies. P121 covers discarded, unused zinc cyanide, including off-specification product and qualifying residues. The P listing makes it acute hazardous waste, so the stricter acute quantities apply even for a small amount of the chemical.
Where a hazardous waste manifest is required, put P121 in Item 13. For exceptions, use the VSQG exemptions and empty-container rules and pharmaceutical containers.
What does P121 cover?
This listing covers unused zinc cyanide discarded as 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 from these products are included. Inactive ingredients don't stop the chemical counting as the sole active ingredient.
- CAS
- 557-21-1
- Table entries
- Zinc cyanide; Zinc cyanide Zn(CN)2
- Hazard codes in the record
- H (acute hazardous)
- Rule
- 40 CFR 261.33(e)
Is waste zinc cyanide always P121?
| Code | When it fits |
|---|---|
| P121 | The unused chemical is discarded as pure or technical grade, or as the sole active ingredient. Qualifying product residues count too. |
| Characteristic waste (D001–D043) | A used chemical or a different formulation shows a hazardous-waste characteristic. Any process listings that fit apply too. |
A listed unused product can also show a characteristic, so more than one row can apply. Having this chemical somewhere in a manufacturing waste doesn't make the waste P121. Match the waste’s origin, formulation and use history. Mixing listed waste with solid waste, or treating it, generally doesn't remove the listing unless an exclusion, exception or approved delisting applies.
Which codes sit beside P121?
| Code | What it is |
|---|---|
| P116 | Thiosemicarbazide |
| P118 | Trichloromethanethiol |
| P119 | Ammonium vanadate |
| P120 | Vanadium pentoxide |
| P122 | Zinc phosphide Zn3 P2 |
| P123 | Toxaphene — an insecticide |
| P127 | Carbofuran — a carbamate insecticide |
| P128 | Mexacarbate — a carbamate pesticide |
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