Keep unwanted white spirit in a sealed, clearly identified container and use a local household hazardous-waste service. In the United States, this solvent is often called mineral spirits.
If the container leaks, the liquid is unknown, or someone was exposed, get condition-specific advice before handling or transport.
Check the Product and Container
White spirit is a petroleum solvent used in products such as paints and varnishes. Read the product label before deciding whether any safe, intended use remains.
Keep the original label attached. Do not transfer the liquid into a drink bottle, food container, or another package that could be mistaken for something harmless.
Close the cap and keep the container upright, away from children, heat, flames, and ignition sources while you arrange a handoff.
Use a Household Hazardous-Waste Service
EPA treats leftover ignitable or toxic household products, including paints and solvents, as materials needing special care. Check your local environmental, health, or solid-waste agency.
Ask whether the program accepts white spirit or mineral spirits, the locations and hours, residency rules, quantity limit, and how the sealed container must arrive.
Washington, DC, currently lists mineral spirits among accepted household hazardous waste. That is one local example, not proof that another program accepts it.
Check the UK Council Route
In England and Wales, the GOV.UK hazardous-waste finder directs households to their council. Elsewhere, use the equivalent municipal or environmental agency.
Ask whether the site accepts white spirit, which locations are licensed, whether you need a permit or appointment, the quantity limit, and how the container must arrive.
Rules differ even between nearby councils. Some accept small sealed household quantities at selected recycling centres, while others offer separate collection.
Reuse Only When the Product Is Still Suitable
If the white spirit is clearly identified, uncontaminated, and still usable, use it only as the label directs. Do not invent a use to avoid disposal.
A community group, decorator, retailer, or reuse scheme may decline opened solvent. Offer it only after the recipient confirms the exact product, condition, and amount.
Do not give away unidentified, mixed, degraded, or leaking liquid.
Keep Contaminated Solvent Separate
Paint, varnish, water, oil, and other chemicals can change how a receiver manages the waste. Tell the service what was added, or say that the contents are uncertain.
Do not strain, dilute, mix, evaporate, or burn white spirit. Do not pour it into paint to make the waste appear usable.
Keep solvent-soaked materials away from ignition sources and ask the same service how it accepts rags or absorbent used for a spill.
Respond to a Leak or Exposure
For a leaking or badly damaged container, keep people away and contact the fire service or local hazardous-materials authority. Do not transfer it unless they direct you.
After swallowing white spirit, do not make yourself vomit. UKHSA advises seeking medical help. For eye, skin, or inhalation exposure, follow current official medical advice.
Keep Business Waste Separate
Council household services may exclude solvent from decorating work, a shop, a landlord, or another business. Use a licensed commercial waste service and keep required records.