http://en.wikipedia.org/wiki/Bluing_(fabric)
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Agar is made from seaweed.
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The chemical used for cold bluing is usually Selenium_dioxide.
Yes. Various bluing agents and treatments exist.
To make Mrs. Stewart's Bluing at home, you will need basic ingredients such as water, laundry bluing agent, and a container for mixing and storing the solution. However, it is recommended to purchase Mrs. Stewart's Bluing directly from the manufacturer to ensure the best results and avoid any potential safety hazards.
In reference to liquid bluing, the laundering agent. Liquid bluing is a colloidal suspension of fine blue iron (vivianite) powder, a pH balancer, and often a biocide. Vivianite is often referred to as Blue Iron, or Blue Iron Earth, as when fresh, the mineral may be colourless, or nearly so; but, once exposed, will oxidize with the Fe2+ converting to Fe3+ with a concurrent darkening to blue.
Mrs. Stewart's Bluing was created in 1883.
Bluing, as it relates to firearms or metal in general, is a permanent surface treatment under ideal conditions. Poorly maintained bluing will fade or flake off. Bluing is a "form of rust", an oxide layer on the outside of the metal. You can remove it using various abrasives, but yes it is permanent.
There are several reasons bluing will not take on a gun. One is it stainless steel. Nope. Two is the bluing solution correct. If so, is the temperature correct, Brownells has bluing info for their solutions., follow these almost perfect. Also to be blued, it must be alloy steel. not pot metal, not cast, just steel. Don't get any brass, copper, zinc or lead in the bluing solution. lcjones
Gun Bluing is a chemical that is brushed or rubbed on the metal of the gun. It acts like a die. It can be purchased at most gun stores. The metal has to be stripped and cleaned first then the bluing is applied in even layers to make it darker.
If not a refinish, 500 or so.
aluminium and iron
This year.
Birchwood Casey makes a chemical that removes bluing. In addition, Naval Jelly, a popular rust remover, will also remove gun bluing. (Bluing is a form of rust) Be certain that you are dealing with blued steel, and not anodized aluminum. A magnet will not stick to aluminum, but both the Birchwood Casey product and Naval Jelly will corrode aluminum alloy very quickly.
Adding a very faint blue tint to white clothes make them appear whiter. Using liquid bluing helps restore the color when added as 1/4 teaspoon bluing to 1 quart of water to the wash water.
Come on. Do you really think if you turn in a jar of blue urine the testers aren't going to know you tampered with it?