1 - 100g jar of Soda Ash
10g of Soda Ash will scour approximately 500 grams (1.1 pounds) of fiber to a dark shade
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Soda Ash, also known as sodium carbonate, is a workhorse in the dye studio. It may be used in small amounts to alter the ph of a madder dye bath which causes it to redden, or used for scouring cellulose fibers. In addition, it adds alkalinity to a dyebath to modify its shade.