Does magenta absorb sulfur dioxide?

In some special cases, it can be absorbed, because the action of SO2 and magenta is to react with chemistry to produce unstable colorless substances. Therefore, heating can separate and release SO2 and restore the red color. It can be seen that this process has a certain degree of reversibility.

Therefore, in general, to remove SO2 in experiments, it is better to use KMno4 solution, or NaOH solution, because it is irreversible, the absorption effect is better, and magenta is used as a test.

It can fade magenta, reflect its reductivity, and is mainly used for inspection.

Remove sulfur dioxide with a strong alkali (such as sodium hydroxide) or a strong oxidizing agent (such as potassium permanganate), and do not use red.

Magenta can be combined with sulfur dioxide to form a colorless substance under water conditions, and I don't know what the result is.

Generally, no, only testing, if there are two at the same time, the first is testing, and the second is absorption.

It is generally used for inspection, not for absorption, and will form an unstable substance with magenta after penetration, which can be decomposed after heating, so that magenta can restore color.

It can be tested, but it is generally not used for absorption because the absorption capacity is not strong.

OK. However, magenta is often used to identify rather than absorb.

If you want to talk about the troublesome principle, if you want to say whether it can be absorbed, dilute magenta test, thick magenta absorption, you will not be wrong to answer this way when answering the question.

Sulfur dioxide is introduced into the magenta solution, and the solution fades, and this process is a physical process.

Sulfur dioxide can fade the magenta solution. The principle that SO2 can fade the magenta solution is that SO2 is hydrated to synthesize H2SO3, and H2SO3 undergoes an addition reaction with magenta to generate unstable colorless compounds, which fade the magenta solution. This reaction is reversible and can be resumed under heated conditions.

Sulfur dioxide can react with colored substances to form colorless substances and has bleaching, but sulfur dioxide bleaching has temporary characteristics, heating is easy to restore the original color, sulfur dioxide can make the magenta solution fade to reflect sulfur dioxide bleaching, and sulfur dioxide reduction.

Sulfur dioxide uses:

1. It is used as an organic solvent and refrigerant, and is used to refine various lubricating oils.

2. It is mainly used for the production of sulfur trioxide, sulfuric acid, sulfite, thiosulfate, and is also used as fumigant, preservative, disinfectant, reducing agent, etc.

3. Sulfur dioxide is a reductive bleach agent allowed to be used in China. It has a strong inhibitory effect on the bleaching of food and oxidase in plant food. China stipulates that it can be used for wine and fruit wine, and the maximum amount of use and residue shall not be exceeded.

4. Pesticides, man-made fibers, dyes and other industrial sectors.

5. It is used in the production of sulfur and as an insecticide and fungicide.

6. According to Claude Ribbe's book The Crimes of Napoleon, sulphur dioxide was used as a poison by some Haitian monarchs in the early 19th century to suppress slave revolts.

The above content reference: Encyclopedia - sulfur dioxide.

Because sulfur dioxide is bleaching (not oxidizing), it can fade the magenta solution. However, since the bleaching of sulfur dioxide is temporary, it is a chemical reaction that produces an unstable substance, and when heated the faded magenta solution, it will also change back to its original color.

Sulfur dioxide is commonly used in industry to bleach pulp, wool, silk, straw hats, etc. The bleaching effect of sulphur dioxide is due to the fact that it (sulphurous acid) can form unstable colorless substances with certain colored substances. This colorless substance easily decomposes and the colored substance returns to its original color, so the straw hat braid bleached with sulfur dioxide turns yellow over time.

SO2 is dissolved in water to form sulfurous acid, which is directly combined with colored organic substances such as slightly acidic magenta solution to form unstable colorless compounds, which are unstable and decompose when heated, so that the colored substances return to their original color.

Sulfur dioxide, dissolved in water to form sulfurous acid, sulfurous acid and magenta combined, forming a complex, so fade.

It reacts with the organic matter in magenta to form a substance that is easily decomposed, and the color can be restored by heating.

It combines with magenta to form an unstable colorless substance.