How to clean nitric acid and caustic soda in industrial production and washing activated carbon?

There are both acids and alkalis in activated carbon?? How is it possible to coexist? Of course, alkali is used to neutralize the acid, and alkali is of course neutralized with acid.

There are both acids and alkalis in activated carbon?? Of course, alkali is used to neutralize the acid, and alkali is of course neutralized with acid.

Hello. Sexual carbon solving, with qualified carbon, to say nitrite, its metal separation and chlorine separation should be exceeded.

If powder activated carbon is used for column chromatography, the mixing ratio of diatomaceous earth and activated carbon powder is generally 1:1, and the column is adjusted into a paste with distilled water. As for granular activated carbon and nylon-activated carbon, it is rare to encounter diatomaceous earth. It's not clear.

(1) Carbon monoxide is toxic, but it is reducible and can be used to smelt metals in industry; Therefore, fill in: co;

Hydrochloric acid can react with iron oxide to form ferric chloride and water, which can be used to remove rust, so fill: HCl;

Potassium nitrate contains potassium and nitrogen in large crop demand, which is a compound fertilizer, so it is filled: KNO3

Activated carbon has an adsorption effect and can be used to adsorb toxic gases, so fill: c;

Sodium carbonate is alkaline and can be used as a detergent, and can also react with acidic substances and can be used to steam steamed buns; Therefore, fill in: na2CO3

The chemical properties of nitrogen are not active, and it can be used as a protective gas for grains and fruits, so fill in: N2

2) According to the algebraic sum of positive and negative valency in the compound is zero, the valency of potassium is +1 and the valency of oxygen is -2, then the valency of CR in potassium dichromate is: (+1) 2+2x+(-2) 7=0, and the solution x=+6;Therefore, fill in: +6 valence

wt% is the weight percent.

That is, 100g of this activated carbon contains 4g of NaOH.

It depends on what kind of pickling is used and to what extent does it need to be treated? There are also other ingredients such as buffers added to the water during the pickling process. What is the material washed by pickling, if it is metal, there will be metal in the wastewater.

In general, it is good to add alkali precipitation and then adjust back to pH, and calcium hydroxide (lime water, **cheap) is recommended for lye

Generally, the electroplating industry will use the pickling process, there will be pickling wastewater, you just need to distinguish what acid to clean and then how to deal with it, I think you can do the problem clearly.

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Sodium hydroxide strong alkali corrodes the glass, causing the glass to deteriorate, and worse, the laundry detergent is also strongly alkaline, I don't think you want it, it is recommended to wash it with a small amount of vinegar after washing.

It's not that the sodium hydroxide is not washed, but that the sodium hydroxide corrodes the glass, and a reaction occurs, and a small part of the glass dissolves.

2naoh + sio2 == na2sio3 + h2o

It is unlikely to be washed into the original transparent form.

Acids such as formic acid, acetic acid (i.e., acetic acid), hydrochloric acid or boric acid must be added, and sulfuric acid and nitric acid are not recommended. This neutralizes it.