Aluminium Sulphate Octadecahydrate

Company Introduction

Our company specialize in producing aluminium sulphate and now also is a well-known aluminum sulphate production factory in China with an annual output of industrial aluminum sulphate 150 thousand tons and of iron free grade 80 thousand. Established in 1989, specializing in aluminum sulphate production.

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What Is Aluminium Sulphate Octadecahydrate

Aluminum sulfate octahydrate is a chemical substance with the formula Al2 (SO4) 3 · 18H2O. Under normal temperature and pressure, Aluminium sulfate octahydrateis a white amorphous crystal or particle, soluble in water but insoluble in alcohol organic solvents. Aluminum sulphate octahydrate is stable in the air and begins to weather when the relative humidity is about 20%. It gradually heats up and melts, losing crystalline water at 250 ℃ and decomposing at higher temperatures.

Advantages of Aluminium Sulphate Octadecahydrate

Detailed Knowledge Introduction to Aluminum Sulfate Octadecahydrate

The aqueous solution of aluminium sulphate octadecahydrate is acidic and has a sour and astringent taste. It begins to decompose when heated to 530 ℃, and the final product of decomposition is aluminum trioxide at 860 ℃. During the hydrolysis process of octahydrate aluminium sulphate, the intermediate product alkaline salt is first generated, followed by the formation of aluminum hydroxide. Aluminum sulphate can precipitate 18 molecules of crystalline water at room temperature, which is octahydrate aluminium sulphate octadecahydrate. It contains 51.3% anhydrous aluminium sulphate octadecahydrate and will not self dissolve (dissolve in its own crystalline water) even at 100 ℃. This substance is not easily weathered and loses crystalline water. It is relatively stable and will lose water when heated. At high temperatures, it will decompose into oxides of aluminum oxide and sulfur. It is heated to 770 ℃ and begins to decompose into alumina, sulfur trioxide, sulfur dioxide, and water vapor. The aqueous solution of octahydrate aluminium sulphate octadecahydrate can boil for a long time to generate basic aluminium sulphate octadecahydrate. Industrial products are gray white flakes, granules, or blocks, with a light green color due to the presence of low iron salts, and the surface turns yellow due to the oxidation of low iron salts.

Aluminium sulphate octadecahydrate is an aluminum salt that is odorless, white or off-white crystalline solid or powder. It is created by the addition of aluminum hydroxide to sulfuric acid and is also known as 'alum.' naturally, it is hydroscopic, and can absorb and hold water molecules. It is found in a number of different forms of hydrates, which refer to the chemical state of water within the chemical structure of the element. Aluminium sulphate octadecahydrate, octadecahydrate is one of the most common forms, is formed by the combination of aluminium sulphate octadecahydrate with approximately 18 molecules of water.

With its wide-ranging set of characteristics and a relatively friendly chemical compound, aluminium sulphate octadecahydrate has found uses in areas ranging from the food industry to the medical field. The most well- known use for aluminium sulphate octadecahydrate is in water treatment, where it assists in the purification process. Its coagulation properties lend themselves to this use, for when it is added in the water treatment process, it causes the microscopic impurities in the water to coagulate, or clump together, where they can then be more easily removed. This same process also allows for swimming pools to be treated with aluminium sulphate octadecahydrate to make the water clearer.

Aluminium sulphate octadecahydrate' s acidity acts as a positive in its use as a fertilizer and in gardening. When soils are very alkaline, the addition of aluminium sulphate octadecahydrate helps to balance the ph, providing a more hospitable environment for the surrounding plants. An example of the impact this has on gardening is in hydrangeas. The ph level in the soil affects what color the flower will turn, so gardeners will add aluminium sulphate octadecahydrate to the soil in order to reduce the ph and change the flowers colors to blue, from the pink it will be with less acidic soil. You probably come across uses of aluminium sulphate octadecahydrate every day around the home. From its inclusion in antiperspirants and baking soda to use as an astringent to stop small cuts from bleeding, aluminium sulphate octadecahydrate is all around.

Although it is not a volatile chemical compound and is not flammable, aluminium sulphate octadecahydrate carries some properties that pose a hazardous threat. It is dangerous to humans if inhaled or swallowed, where it can cause irritation, pain, or internal distress. On its own, aluminium sulphate octadecahydrate is very acidic. When water is added to it in a solution, the resulting ph can drop below two, which can corrode metal and cause severe burns. Store in a cool, dry area and take care to ensure that aluminium sulphate octadecahydrate is always stored in tightly sealed containers.