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Welcome to my page where you will discover what Red Congo acid can do!
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"The indicator sponge is saturated with Congo red solution. Congo red is a dye, a biological stain, and a pH indicator. It has been used as a direct fabric dye for cotton to produce a bright red fabric. Biologists use Congo red as a general contrast stain for cellulose. Congo red is also used as a pH indicator. The color transition is between pH 3.0 and 5.0. Below a pH of 3.0 (very acidic solutions), the indicator is blue. Above pH 5.0, the indicator is red.When a cellulose sponge is soaked in a Congo red solution, the dye becomes permanently bonded to the cellulose fibers. The active acid/base sites on Congo red are still available and the sponge now becomes an indicator sponge for acids. It can also be used to check for acid spills on counters after students have used acids."
Driving Question:
How do bases and pH levels work? When is it used and for what is congo red?
A. By mixing the bases with acid it cancels or neutralized their effect and Ph levels scale measure how basic or acidic is a substance and its usually range by 0 to 14
B. Congo red indicator is a dye, with Ph indicator and biological stain (used to make easier the examination of microorganisms) to make a brighter red in fabric. Also it contrasts satin for cellulose which help Biologists.
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