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∙ 18y agoit is most likely an algae that has been flocked to the bottom by shocking.your chemicals have done there job now it is time to vacuum up the dead algae so it does not start to grow again much like a weed. If you keep your Alkalinity,PH and Chlorine stable you will not have to ad other chemicls with the exception of non-chlorine shock.Remember every extra chemical you add to your pool or spa is providing food for algae. kenny Kummer brody Chemical
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∙ 18y agoyou can actually, but not alone. you need one layer red, another blue. draw layer 2 first, in a normal pen get layer 1, and put it on the paint that looks like tiny checked patterns draw that over layer 2 and it's easy.. there.. you got purple
The top liquid layer in a purple-top tube after centrifugation is called plasma. Plasma is the liquid component of blood that contains water, electrolytes, proteins, hormones, and waste products.
They are a sort of pinkish-purple very thin layer of skin.
capsule
An alloy of aluminum and nickel can appear purple when anodized. This process creates an oxide layer on the surface of the metal that can reflect light as purple.
Around 35$
capsule
The slime layer that surrounds Gram-negative bacteria and prevents them from taking up the purple stain in Gram staining is called the capsule. It is a protective layer made up of polysaccharides or proteins that helps bacteria evade the body's immune system.
Aluminum can turn purple when exposed to high temperatures, typically above 300 degrees Celsius. This color change is due to the formation of a thin oxide layer on the surface of the aluminum.
The mesosphere, which is one of the layers in Earth's atmosphere, appears dark blue to black in color. This color is a result of the scattering of sunlight by particles and molecules present in this layer.
When heated, aluminum typically turns a dull gray color due to the formation of an oxide layer on its surface. This oxide layer acts as a protective barrier to prevent further corrosion.
In a flame test, halides typically appear in the lower layer of the flame. Halides produce distinctive colors when exposed to a flame, such as green for chloride, blue for bromide, and purple for iodide. These colors help in identifying the presence of halides in a compound.