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Q: What type of metal surface corrosion produces white or gray powdery deposits with blotches?
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Related questions

Does gold or lead resist corrosion better?

Gold. Lead rapidly oxidizes to a powdery white material that used to be used as a base for paint pigments.


Is the white powdery build up on a car battery a conductor?

No, it is battery acid corrosion caused by leaking fumes. Clean it off with water and baking soda which will neutralize the acid.


How do you use powdery in a sentence?

The snow was very powdery on Sunday. The cocaine was more powdery than usual.


Powdery ink used in photocopiers or computers?

what is powdery ink


Which powdery solid does a flower have?

the powdery solid a flower have is pollen grains


What are the yellow powdery in the anther?

pollen grains are the yellow powdery in the anther.


What is the difference between powdery mildew and downy mildew?

Origin· Downy mildew belongs to the Peronosporaceae family and powdery mildew belongs to the Erysiphaceae family.Infection Site· Powdery mildew spores appear on both sides of the leaf, where as downy mildew only produces spores on the underside of leaves. Powdery mildew produces spores in a tree-like formation, while downy mildew spores are produced in chains.Growth ConditionsPowdery mildew requires a nighttime temperature of at least 60 degrees F and a daytime temperature of 80 degrees F. It also requires a nighttime humidity of 90 to 99 percent and a daytime humidity of 40 to 80 percent, according to R. K. Horst, professor of plant pathology at Cornell University. Downy mildew can't survive below 40 degrees or above 80 degrees F. Sixty-five degrees is ideal for downy mildew and humidity needs to be above 85 percent.TransmissionPowdery mildew spores are spread by wind. Downy mildew spores spread as a result of splashing water. Spores are usually launched from dead leaves on the ground upward to the underside of plant leaves during rainfall.SymptomsPowdery mildew produces a thick web of white spores that cover the leaves, stems and shoots. The leaves turn yellow and fall off. Downy mildew produces a gray or white fuzz on the underside of leaves. The top of the leaf has yellow blotches.


What is 'powdery mildew' in Dutch?

"Echte meeldauw" is a Dutch equivalent of "powdery mildew" (Erysiphelas order).


What is 'powdery mildew' in German?

"Echter Mehltau" is a German equivalent of "powdery mildew" (Erysiphales order).


How can you tell the difference between a butterfly or a moth?

powdery one is the moth


What is the cause of green powdery corrosion all over the copper wires under the plastic housing of a stove outlet and how do you cure this?

Possibly old wiring corroding. Could be caused by loose connections. May have to run new wires. Consult a licensed electrician.


What is phosphorus texture?

powdery