Limescale redness What s going on, what s going on with limescale

There is rust, remove it and drink it again.

Formation process. At high temperatures, it contains calcium sulfate, which is slightly soluble in water.

It will be precipitated due to the evaporation of water, and the carbonate in the water will combine with calcium and magnesium ions to form calcium carbonate that is insoluble in water.

Magnesium carbonate, that is, water alkali.

With the continuous evaporation and concentration of water, the water alkali content continues to increase, and scale is formed after reaching saturation.

Scale is mainly formed by the precipitation of salts such as calcium and magnesium contained in boiler feed water after being heated and sticking to the metal surface. Thermal conductivity of scale.

Very small, about 2 5% of ordinary steel, scale on the heating surface of the boiler, will greatly deteriorate the heat transfer effect, affect the efficiency of the boiler; It is easy to burn out the metal material due to local overheating, and even burst the pipe;

It can promote galvanic corrosion.

Aggravation, causing boiler scale corrosion and accelerating the damage of the heating surface. After the formation of scale, it should be removed by mechanical or chemical methods in time. The effective way to prevent or slow down the formation of scale is to strictly control the quality of the feed water and take appropriate measures such as boiler water treatment and boiler blowdown.

The redness of the scale indicates that there is rust, and it should be removed in time before drinking.

Formation process: At high temperatures, calcium sulfate containing slightly dissolved water.

Through the evaporation and precipitation of water, the carbonate in the water combines with calcium and magnesium plasma to form calcium carbonate that is insoluble in water.

and magnesium carbonate, i.e. water alkali.

As the water continues to evaporate and concentrate, the content of water and alkali increases, reaching saturation and forming scale.

Scale is mainly due to the fact that the boiler feed water contains calcium, magnesium and other salts, which are bonded to the metal surface after heating. Thermal conductivity of scale.

Very small, about 2 5% of ordinary steel, scale on the heating surface of the boiler, will greatly deteriorate the heat transfer effect, affect the efficiency of the boiler; Metal materials are easy to burn out due to local overheating, and even burst pipe accidents;

It can promote galvanic corrosion.

Strengthening, causing boiler scale corrosion and accelerating the destruction of the heating surface. Once scale has formed, it should be removed mechanically or chemically. The effective way to prevent or slow down scaling is to strictly control the quality of water supply and take appropriate measures, such as boiler water treatment, boiler blowdown, etc.

Because the scale contains rust, it can be removed, and there is a set of ten yuan patented product Taishan Tiangong scale filter, which can remove scale, rust and other sediments and suspended solids in boiling water.

It is due to the presence of positive trivalent iron, all of which are usually red (the color of rust).

There is iron oxide in the presence of redness.

Redness of limescale What's going on.

There is rust, remove it and drink it again.

a. The scale in drinking boiling water can be filtered by physical methods with "Haili conical scale filter mesh bag", visible scale rust and alkali impurities, and the white film bleached on the water can be filtered out, which can not only filter out the scale, but also retain trace elements, and drink with confidence.

b. The scale on the wall of the pot can be cleaned with "Haili scale", and the pot is not used at night when it is filled with blisters, and it will be completely clean in the morning.

What kind of scale do you want to remove, the above 2 things are available on the Internet, which are very cheap and practical. The two together are only more than 2 yuan.

It is high in iron, and the red substance you are talking about is iron oxide Fe2O3Generally, calcium and magnesium ions in water are the main elements in the formation of scale, and it is not a big problem to drink after boiling, otherwise it is easy to get stones.

After the water is boiled, a part of the water evaporates, and calcium sulfate (caso4, gypsum is calcium sulfate containing crystal water) that is not easy to dissolve precipitates. The original dissolved calcium bicarbonate (Ca(HCO3)2) and magnesium bicarbonate (mg(HCO3)2) are decomposed in boiling water, releasing carbon dioxide (CO2), which become insoluble calcium carbonate (CaCO3) and magnesium hydroxide (Mg(OH)2), which are also precipitated, and sometimes MgCO3 is also generated. This results in the formation of limescale.

Limescale can be roughly divided into two types: hard scale and soft scale according to the reason for its formation and forming state. When the water contains impurities such as carbonate colloids, bacteria and organic matter, the carbonate is similar to the sand and gravel in the cement mortar, and the colloids, bacteria and organic matter are equivalent to the cement in the cement mortar. Once the viscous substances such as colloids, bacteria and eggplant organics have been removed (e.g. by ultrafiltration), even if the concentration of calcium, magnesium and carbonate ions in the water is high, it becomes a white and loose carbonate soft scale that is easy to remove, without hard scale.