Find sources: "Bluing"fabric– news · newspapers · books · scholar · JSTOR ( August 2012) ( Learn how and when to remove this template message) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Laundry bluing is made of a colloid of ferric ferrocyanide (blue iron salt, also referred to as "Prussian blue") in water.

Metal Bluing - Brownells UK

Bluing, laundry blue, dolly blue or washing blue is a household product used to improve the appearance of textiles, especially white fabrics. Used during laundering, it adds a trace of blue dye (often synthetic ultramarine, sometimes Prussian blue) to the fabric. We can no longer transport these products off the British mainland due to the rules of over-watertransportation.

Metal Bluing - Liquid Cold Bluing Chemicals

Bluing is usually sold in liquid form, but it may also be a solid. Solid bluing is sometimes used by hoodoo doctors to provide the blue color needed for " mojo hands" without having to use the toxic compound copper(II) sulfate. Bluing was also used by some Native American tribes to mark their arrows showing tribe ownership. [ citation needed] See also [ edit ]