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Lipids!
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∙ 10y ago
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Is dye a nitric acid?
Dye and nitric acid are different. A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber.
Why does lipids turn redish brown when added to Sudan iv dye?
Sudan dye is lipid -soluble dye, thus, it will turn any lipids to red. It mixes with it.
What chemical property allows lipids and Sudan IV dye to mix?
The sudan dye is a lipid itself, therefore you have a lipid layer interacting with another lipid.
What substance is stained by Sudan dye?
fats (Lipids)
Why do you need to add salt or dye fix to a dye solution?
Salt helps by making the dye solution stick to the cloth fibers.
What is orange dye solution?
Red and Yellow dye.
How do you use the Sudan IV test?
Sudan IV is a diazo dye for staining lipids, lipoproteins, and triglycerides. It is used in Sudan staining, wherein it attaches to the fats chemically.
How preper sudan3 solution?
Sudan III: To make 100 ml of Sudan IV staining solution: warm 73.5 ml of 95% ethyl alcohol [C2H5OH] in a warm water bath (hot tap water will do). Add 0.5 grams of Sudan (III) and stir. Add 75-80 degrees Celsius distilled water to just below the 100 ml mark; stir. Cool to room temperature; dilute to 100 ml with distilled water; stir then filter. (Use: biological stain)
What happened to the dye solution?
stem
What is a positive Sudan IV test result?
If no lipids are present, the red dye will sink to the bottom of the test tube. Sudan (iv) is not soluble in water but soluble in lipid.
What is solution dyeing?
Red and Yellow dye.
A dyed t-shirt is hung up to dry in a warm room. what physical change happens to the water from the dye solution?
The dye solution will dry
