Sounds like you got yourself some sodium silicates. If they don't dissolve in water I don't think there's much you can do chemically to remove them
that wouldn't also damage the container (assuming it's glass). If it's plastic you could try some HF (easily made by mixing a fluoride salt with an
acid, but beware of the fumes and take precautions against getting any on your skin). Otherwise scrub as best you can, ignore the residue as it'll
likely be inert to whatever you're going to store in that container in the future, or simply trash the container. |