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01 High alkali -resistant dye dyes should be at the same timeDisted dyes of high alkali resistance are not only adapted to the dyeing polyester under weak acidic conditions, but also applies to dyeing polyester under neutral and alkaline conditions. Read More
The dyes such as "Dragon Purple Purple and acetic acid" used in high school biology experiments are alkaline dyes. "Is alkaline dyes alkaline (pH> 7)?The above -mentioned alkaline dyeing fluid uses acetic acid when preparing. How can their pH be greater than 7? Read More
In high school biology, two experiments we have learned, "observing the wire division process of onion root tip cells", "double temperature -induced chromosomal number double", "pollen detection, you can use acetic acid ocean red detection whether pollen is in a single -core stage" and other experim. Read More
1. Constant temperature rapid dyeing method refers to dyeing at a temperature above the glass transition temperature and below the boiling point, and holding it for 45-90 minutes. After most of the dye is absorbed, the temperature is raised to the boiling point to fix, and the fixation time Shorter, Read More