P104 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
P104, Silver cyanide.
Acute hazardousP-listed waste
Silver cyanide
P-list unused product.
ComplyOnSiteIs P104 hazardous waste?
Yes, when the listing applies. P104 is for unused silver cyanide that is thrown away, including off-specification product and qualifying residues. It is acute hazardous waste, so the stricter acute quantities apply even for a small amount.
Put P104 in Item 13 of a required hazardous waste manifest. The VSQG exemptions and empty-container rules and pharmaceutical containers have their own limits.
What does P104 cover?
It covers unused silver cyanide thrown away pure, at technical grade, or in a formulation where it is the only active ingredient. It also takes in off-specification batches, residues left in nonempty containers and cleanup residues from spills of these products. Inactive ingredients don't stop it counting as the only active ingredient.
- CAS
- 506-64-9
- Table entries
- Silver cyanide / Silver cyanide Ag(CN)
- Hazard codes in the record
- H (acute hazardous)
- Rule
- 40 CFR 261.33(e)
Is silver cyanide waste P104 or another code?
| Code | When it fits |
|---|---|
| P104 | Thrown away unused, pure or technical grade, or as the only active ingredient. Qualifying product residues count too. |
| Characteristic waste (D001–D043) | A used chemical or a different formulation that meets a hazardous-waste characteristic. Any process listings that apply count too. |
Both rows can apply at once, because a listed unused product can also have a characteristic. Having this chemical in a manufacturing waste doesn't make the waste P104. Match the waste's origin, formulation and use history. Mixing or treating listed waste generally doesn't remove the listing. That takes an exclusion, an exception or an approved delisting.
Which codes sit beside P104?
| Code | What it is |
|---|---|
| P099 | Potassium silver cyanide |
| P101 | Ethyl cyanide |
| P102 | Propargyl alcohol |
| P103 | Selenourea |
| P105 | Sodium azide |
| P106 | Sodium cyanide |
| P108 | Strychnine and salts — a poison used as a rodenticide |
| P109 | Tetraethyldithiopyrophosphate |
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