1318-02-1 Usage
Description
Aluminosilicate is a group of hydrated aluminosilicate minerals that occur naturally and are also manufactured for their ion-exchange and selective-absorption properties. They have a general formula of mAl2O3 . nSiO2 and are characterized by their unique physical properties such as high surface area and ordered pore structure. Aluminosilicates are used in various applications, including catalysis, adsorption technology, water softening, detergents, and refining petroleum.
Used in Environmental Applications:
Aluminosilicate is used as a mesoporous material for CO2 sequestration, heavy metal removal from waste streams, and catalysis due to its high surface area and ordered pore structure.
Used in Ceramic Industry:
Aluminosilicate is used as a raw material for ceramic molds for casting turbine blades with a DS or SC microstructure, particularly in the form of synthetic mullite, which is characterized by high chemical purity and resistance to creep and thermal shock.
Used in Water Treatment:
Aluminosilicate is used as a zeolite for water softening, as it can readily be dehydrated and rehydrated, and has a strong capacity for holding ammonium ions, reducing the leaching of nitrate ions.
Used in Detergent Industry:
Aluminosilicate is used as a zeolite in detergents as a builder, which helps in softening water and enhancing the cleaning efficiency of the detergent.
Used in Petroleum Refining:
Aluminosilicate is used as a catalyst in refining petroleum, aiding in the cracking process and improving the quality of the final product.
Used in Ion Exchange Systems:
Aluminosilicate is used as a zeolite in ion exchange systems for water softening, where it can absorb and release ions, thus reducing the hardness of water.
Used in Agricultural Applications:
Aluminosilicate is used as a zeolite in agriculture for its ability to hold ammonium ions, reducing the leaching of nitrate ions and improving soil quality.
Used in Molecular Sieves:
Aluminosilicate is used as a zeolite in molecular sieves, which are used for separating mixtures by selective absorption and in sorption pumps for vacuum systems.
Used in Solar Collectors:
Aluminosilicate is used as a zeolite in solar collectors, functioning as both a heating and cooling agent due to its unique properties.
Preparation
Zeolite family is a well-known class of alkali aluminosilicates found in nature that
has been used as ion exchange minerals in water softening.They are hydrated systems and
give up part of their water molecules quite readily at modest temperatures but reabsorb the
moisture when exposed to moist air. A similar alkali aluminosilicate is prepared artificially
and has the empirical composition 2M2O·Al203·3SiO2·3H20; these compositions are
called "permutites" and are usually prepared with sodium as the alkali metal by adding
aluminum sulphate to soluble silicate solutions or by combining sodium aluminate with
sodium silicate. In the presence of calcium, iron and other cations, the sodium ion is displaced
by the heavier metal ions and the permutites can thus be used to remove these metal
ions from solution—for example, to remove hardness from hard water, or to "soften"
water. The permutite or artificial zeolite can be regenerated by treating with strong sodium
chloride solution, thus replacing the calcium or iron by sodium. More recently, the use of
synthetic zeolites as "molecular sieves" has become quite important in the separation
of organic compounds or as catalysts in petroleum refining. In these alkali aluminosilicates,
the pore size is determined by the alkali metal cation used.
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 1318-02-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,1 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1318-02:
(6*1)+(5*3)+(4*1)+(3*8)+(2*0)+(1*2)=51
51 % 10 = 1
So 1318-02-1 is a valid CAS Registry Number.
InChI:InChI=1/Al.K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q;+1;/p-2
