Aluminium silicate (or aluminum silicate) is a name commonly applied to chemical compounds which are derived from aluminium oxide, Al2O3 and silicon dioxide, SiO2 which may be anhydrous or hydrated, naturally occurring as minerals or synthetic.
Their chemical formulae are often expressed as xAl2O3·ySiO2·zH2O.
Aluminium silicate is known as E number E559.
CAS Number: 12141-46-7
EC Number: 235-253-8
Chemical Formula: Al2SiO5
Other names: Aluminum silicate, synthetic;Aluminum silicate, natural [JAN];Aluminum silicate, synthetic [JAN];EINECS 235-253-8;Alumina Silicate;dialuminum,oxygen(2-),silicon(4+);Aluminum silicate felt; Aluminum silicate fibre tube; Aluminum silicate fiberboard;ALUMINIUL SILICATE; Aluminumoxidesilicate; aluminumoxidesilicate(al2o(sio4));SILLIMANITE;SILICA-ALUMINA CATALYST SUPPORT;PYRAX ABB;PYROPHYLLITE;MONTMORILLONITE (ALUMINUM PILLARED CLAY);ANDALUSITE;ALUMINIUM SILICATE; Silicic acid aluminum; FIBERFRAX(R); CATALYST (ALUMINUM PILLARED CLAY); Aluminum Silicate - Carc.;Aluminum Silicate n-Hydrate;ALUMIUM SILICATE;PURE ALUMINIUM SILICATE ;Aluinum silicate;ALUMINUM SILICATE HYDRATE; aluminium silicate - [Al2O(SiO4)]; aluminium silicate ultm-fine; ialuminum,oxygen(2-),silicon(4+); 12141-46-7; 235-253-8; ALUMINIUM OXIDE SILICATE;ALUMINIUM SILICATE;ALUMINIUM SILICATE [WHO-DD]; ALUMINUM OXIDE SILICATE;ALUMINUM OXIDE SILICATE (AL2O(SIO4)); ALUMINUM SILICATE; ALUMINUM SILICATE [II];ALUMINUM SILICATE [INCI];ALUMINUM SILICATE [MI]; ALUMINUM SILICATE, NATURAL [JAN];E-559;INS NO.559;INS-559;KAOLIN, LIGHT OR HEAVY;SILICIC ACID (H6SIO5), ALUMINUM SALT (1:2)
Andalusite, kyanite, and sillimanite are the principal aluminium silicate minerals.
The triple point of the three polymorphs is located at a temperature of 500 °C (932 °F) and a pressure of 0.4 GPa (58,000 psi).
These three minerals are commonly used as index minerals in metamorphic rocks.
Al2SiO5, (Al2O3·SiO2), which occurs naturally as the minerals andalusite, kyanite and sillimanite which have distinct crystal structures.
Al2Si2O7, (Al2O3·2SiO2), called metakaolinite, formed from kaolin by heating at 450 °C.
Al6Si2O13, (3Al2O3·2SiO2), the mineral mullite, the only thermodynamically stable intermediate phase in the Al2O3-SiO2 system at atmospheric pressure.
This also called '3:2 mullite' to distinguish it from 2Al2O3·SiO2, Al4SiO8 '2:1 mullite'.
2Al2O3·SiO2, Al4SiO8 '2:1 mullite'.
The above list mentions ternary materials (Si-Al-O).
Kaolinite is a quaternary material (Si-Al-O-H).
Also called aluminium silicate dihydrate, kaolinite occurs naturally as a mineral.
Aluminium silicate's formula is Al2Si2O5(OH)4, (Al2O3·2SiO2·2H2O).
Aluminium silicate is a type of fibrous material made of aluminium oxide and silicon dioxide, (such materials are also called aluminosilicate fibres). These are glassy solid solutions rather than chemical compounds. The compositions are often described in terms of % weight of alumina, Al2O3 and silica, SiO2. Temperature resistance increases as the % alumina increases. These fibrous materials can be encountered as loose wool, blanket, felt, paper or boards.
Aluminium silicate (or aluminum silicate) is a name commonly applied to chemical compounds which are derived from aluminium oxide, Al2O3 and silicon dioxide, SiO2 which may be anhydrous or hydrated, naturally occurring as minerals or synthetic.
Their chemical formulae are often expressed as xAl2O3·ySiO2·zH2O.
It is known as E number E559.
Uses
In dental cements, glass industry; manufacture of semiprecious stones, enamels, ceramics, and colored lakes; paint filler; in washing compounds.
Aluminium Silicate is a composite of around half alumina and half silicon oxide which features good thermal shock resistance and easily replaces carbon fixtures in many applications.
By changing process conditions, this highly versatile material can be tailored to provide a range of hardness values to suit customer requirements, whilst maintaining its thermal and electrical properties.
Our customers benefit from this material as it is cost effective and does not dirty the workplace like carbon can.
This material is excellent for the manufacture of fixtures, firing and dicing plates, and is flexible enough to be manufactured into intricate designs specified by our customers.
Aluminium silicate applications
Boats
Fixtures
Nozzles
Furnace tooling
Slicing tooling
Insulators
Glass sealing
Brazing
Alloying
Soldering
Welding
What is Aluminum silicate?
Aluminum silicate (Al2SiO5) is also known as kaolin, or hydrated aluminum silicate when in powder form. Aluminum silicate is a mixture of alumina, silica, and oxygen.
Kaolin is often used as a demulcent and adsorbent in pharmaceutical industry.
It is used in color lakes (insoluble dyes).
As a raw material, it is commonly found in paper, plastics, cosmetics, and pharmaceuticals, and it is also used in pharmaceutical preparations as a filtering agent to clarify liquids.
As a medicinal agent, kaolin, is used to treat diarrhea.
In dentistry, used to add toughness and opacity to porcelain teeth.
Other common names for hydrated aluminum silicate include heavy or light kaolin, china clay, bolus alba, porcelain clay, white bole, and argilla.
What Is Aluminum Silicate?
Aluminum Silicate, Calcium Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Sodium Magnesium Silicate, Zirconium Silicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Kaolin, Lithium Magnesium Silicate, Lithium Magnesium Sodium Silicate, Montmorillonite, Pyrophyllite and Zeolite are all clay-like ingredients that are based on silicates.
In cosmetics and personal care products, these seventeen ingredients are used in a wide variety of product types, including bath products, makeup and skin care products.
Why is Aluminum Silicate used in cosmetics and personal care products?
The following functions have been reported for these ingredients.
Aluminum Silicate, Magnesium Trisilicate, Zirconium Silicate, Attapulgite, Fuller's Earth, Montmorillonite
Aluminum Silicate, Calcium Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Montmorillonite, Pyrophyllite, Zeolite
Anticaking agent - Aluminum Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Fuller's Earth
Bulking agent - Aluminum Silicate, Calcium Silicate, Magnesium Silicate, Magnesium Trisilicate, Sodium Magnesium Silicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Lithium Magnesium Silicate, Lithium Magnesium Sodium Silicate, Montmorillonite
Opacifying agent - Aluminum Silicate, Calcium Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Zirconium Silicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Montmorillonite, Pyrophyllite
Viscosity increasing agent - aqueous - Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Attapulgite, Bentonite, Hectorite, Lithium Magnesium Silicate, Lithium Magnesium Sodium Silicate, Montmorillonite
Aluminium silicate, also referred to as aluminum silicate, is a compound made from aluminum, oxygen and silicate that can take the form of a mineral as well as combine with water to make a clay.
It has a hardness of 1-2 on the Mohs scale of mineral hardness.
The refractive index of aluminium silicate is 1.56 and the density is 2.8 to 2.9 g/cm.
Aluminum silicate comes in three mineral forms: andalusite, kyanite and sillimanite, all of which have the chemical formula Al2SiO5 but have distinct crystal structures.
Another compound, magnesium aluminum silicate, is a garnet known as pyrope when found in the mineral form, and is considered to be the only garnet that is always red.
Medical Uses
When magnesium aluminum silicate is hydrated it becomes a clay known as kaolin, which is used for treating ailments such as diarrhea and to combat diaper rash as well as rashes from poison oak and poison ivy.
When combined with magnesium and hydrated, the result is a clay mixture that sees common use in antacids as well as a thickener for cosmetics and other beauty products.
It also appears as an inactive ingredient for deodorants.
Industrial Uses
The kyanite form of aluminium silicate is used to create mullite for industrial use, and this compound is used by the ceramics industry as a refractory, as well as to manufacture electrical insulating materials and heating elements.
The sillimanite form is used in such industries as glass-making, metal smelting and in iron foundries.
Sodium aluminosilicate contains water and is referred to as synthetic sodium aluminosilicate, which manufacturers add to powdered foods to prevent lump formation.
Aside from its use in medicine, kaolin also has industrial uses.
The ceramics industry uses it to produce fine porcelain, for example. You can also use kaolin to make bricks and cement.
What Does Aluminum Silicate Mean?
Aluminum silicate refers to a chemical compound with the formula 3Al2O3 · 2SiO2.
It occurs as a mineral and is composed of aluminum, oxygen and silicon.
The compound is often used to manufacture corrosion preventative coatings.
Aluminum Silicate is chemically denoted as Al2SiO3 & is commonly used as filler in Paints.
This also exhibits anti settling properties in paint.
As this is rich in Silica compound so this is also used as semi reinforcing agent in rubber.
We manufacture Aluminum Silicate by precipitation process.
During manufacturing, the particle size, shape, Bulk Density, and purity is closely controlled to ensure product quality & uniformity
Applications of aluminum silicate:
Rubber
Plastics / Polymer
Paints
Ceramics
Papers
Agro Chemical
Construction / Cement
Animal Feed
Printing Ink
Sealants & Adhesive
Physical Properties
Numerous particle size options are available down to as small as 20-100 nanometers. The typical industrial grade has an APS of 5 microns with a d50% point of 0.6 microns.
Chemical Properties
Silicon dioxide= 56 - 75.0%, Aluminum oxide= 19.3 - 39.68%
Purities available from as high of a typical purity of 99.99% down to low purity powder. A typical is 94 to 98.5%
Typical Applications
Manufacture of spark plugs, inks, adhesives, plastics, rubbers, board & ceiling tile coatings, catalyst / molecular sieve supports, caulks, foundry coatings, mastics, polishes, powder coatings, sealants, soaps/ detergents, specialty ceramics, and textile coatings
Description
Aluminum silicate is a polymorph with two other minerals; kyanite and sillimanite.
A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals.
A unique variety of andalusite is called "chiastolite".
It contains black or brown clay and/or carbonaceous material inclusioned in the crystal.
These inclusions are arranged in regular symmetrical shapes.
Usually they are in the form of a cross or X
Aluminum Silicate Powder Designations:
Chemical Name: Aluminum silicate
Description
Aluminum silicate, also known as aluminium silicate, is a mixture of aluminum, silica, and oxygen that can be either a mineral, or combined with water to form a clay.
It can also combine with other elements to form various other minerals or clays.
Some of these forms are used medicinally and industrially.
They retain their strength at high temperatures — a property known as being refractory.
Some of the minerals are used as gemstones.
Mineral aluminum silicate comes in three different forms — kyanite, andalusite, or sillimanite.
They all have the chemical formula Al2SiO5, but they have different crystal structures.
All three forms are rarely found in the same rock, because each occurs under different conditions of pressure and temperature.
Only kyanite and sillimanite are used industrially.
Kyanite is unusual in that its hardness varies, depending on the direction of the crystals.
Some of the crystals are similar to blue sapphires and are used as gemstones.
Kyanite is also used in the making of the frequently used industrial compound mullite.
This compound has the chemical formula 3Al2O3.2SiO2.
It is used as a refractory in the ceramics industry and in the manufacture of many things, including high voltage electrical insulations, glass, and heating elements.
Sillimanite can also be used as a refractory.
It is used in a variety of industries.
These include glass-making, ceramics, cement, iron foundries, and metal smelting.
Aluminum silicate can be hydrated, or have water molecules associated with it.
In this case, it forms a clay.
Kaolin is the term for a group of clay minerals with the chemical formula of Al2O3.2SiO2.2H20.
It forms a layer of two alternating crystals — one of silicon-oxygen and one of alumina.
Kaolinite is the main constituent of kaolin.
Kaolin has been used for many years to control diarrhea and to dry poison ivy and poison oak rashes.
It has also been used to treat diaper rash.
Commercially, it has been important in the ceramics industry, particularly for the production of fine porcelain.
It is also used to manufacture cement, bricks, and insulators, among other things.
Another aluminum silicate compound found as a mineral and as a clay is magnesium aluminum silicate, which is composed of magnesium, aluminum, silica, and oxygen.
In its mineral form, it is a type of garnet called pyrope.
It is often used as a gemstone, and is the only garnet to always be red in color.
Its chemical formula is Mg3Al2(SiO4)3, although there are frequently trace amounts of other elements present.
The hydrated form of magnesium aluminum silicate is a mixture of clays.
This purified mixture is commonly used as an antacid.
It is also used as a thickener in beauty products and cosmetics, and as an inactive ingredient in deodorants.
Sodium aluminum silicate is also referred to as sodium aluminosilicate and is composed of sodium, aluminum, silica, and oxygen.
Two minerals of this type are albite and jadeite.
Albite has the chemical formula of NaAlSi3O8, while that of jadeite is NaAlSi2O6.
Albite is common in Earth’s crust, and breaks down under pressure to form jadeite and quartz.
Jadeite is one of the types of minerals that make up the gemstone jade.
There is an industrial form of sodium aluminosilicate, known as synthetic amorphous sodium aluminosilicate, that contains water.
This is a series of compounds and does not have a fixed chemical composition.
It is used as an additive in powdered foods to keep lumps from forming.
Synthetic zeolites are prepared from sodium aluminosilicate.
These are minerals that are very porous, and are used commercially as adsorbents.
They are used primarily as laundry detergents, although they have a variety of other industrial uses.
Applications
Same as for clay i.e. ceramic products, refractories, colloidal suspensions, oil-well drilling fluids, filler for rubber and plastic products, films, paper coating, decolorizing oils, temporary molds, filtration, carrier in insecticidal sprays, catalyst support.
Aluminum silicate is used to prepare aluminum-silicate polymer composite (PASiC), which is an inorganic coagulant used in water treatment.
It is used as a catalyst for the pyrolysis of rice husk to crude bio -oil, which upgraded to supercritical ethanol.
Further, it is used as filler in paper, rubber and in paints.
Aluminum Silicate Description
Aluminium silicate refers to chemical compounds which are derived from aluminium oxide, Al2O3 and silicon dioxide, SiO2.
The chemical formula of aluminum silicate is Al2SiO5, but aluminum silicate is often written as Al2O3·SiO2, because most silicates have very complex structures.
Aluminium silicate is used in the manufacture of glass, ceramics, paints, printing inks, rubber, and plastics.
Aluminum Silicate Common Constituent minerals
There are three common minerals composed of aluminum silicate, most of which are found in metamorphic rocks.
Andalusite, belongs to the orthorhombic crystal system.
Kyanite, belonging to the triclinic system
Sillimanite, a variety of fine sillimanite, belongs to the orthorhombic crystal system.
The composition of these three ore is aluminum silicate, but their structure is different, so they are homogeneous and different crystals.
Aluminum Silicate Applications
Filler for glass, pottery, paint and paint;
An ideal substitute for titanium dioxide and high-quality kaolin in coatings;
Used to make heat-resistant, fire-proof, sound-proof and heat-insulating cotton, boards, tubes, etc.
Used as a filler for adhesives and sealants..
Aluminium silicate is a compound made from aluminum, oxygen and silicate that can take the form of a mineral as well as combine with water to make a clay.
Aluminum silicate comes in three mineral forms: andalusite, kyanite and sillimanite, all of which have the chemical formula Al2SiO5 but have distinct crystal structures.
When magnesium aluminum silicate is hydrated it becomes a clay known as kaolin, which is used for treating ailments such as diarrhea and to combat diaper rash as well as rashes from poison oak and poison ivy.
When combined with magnesium and hydrated, the result is a clay mixture that sees common use in antacids as well as a thickener for cosmetics and other beauty products.
It also appears as an inactive ingredient for deodorants.
The kyanite form of aluminium silicate is used to create mullite for industrial use, and this compound is used by the ceramics industry as a refractory, as well as to manufacture electrical insulating materials and heating elements.
Aluminium silicate (aluminum oxide silicate), under the brand name Adsorbin among others, is used as antidiarrheal agent and intestinal adsorbent.
Kaolin (hydrated aluminum silicate) has traditionally been used internally to control diarrhea.
Kaolin has also been used topically as an emollient and drying agent.
Specifically, it has been used to dry oozing and weeping poison ivy, poison oak, and poison sumac rashes.
It has also been used as a protectant for the temporary relief of anorectal itching and diaper rash.
Aluminium and sodium silicate is a white-coloured amorphous solid, obtained by the reaction of chemical precipitation between a sodium silicate and an aluminium salt in aqueous medium.
It is a filler with many different applications, and it is used as a raw material in sectors such as the manufacture of paints, printing inks, the rubber or the paper sector.
Product
aluminium silicate is used as a white pigment in paints, printing inks and paper, where it acts as a partial substitute for titanium dioxide (extender) at the same time as it increases the covering power and brightness both of the paint and of the paper.
aluminium silicate is the amorphous sodium and aluminium silicate which is used as a white filler in rubber, with a moderate reinforcing nature.
Its application is especially indicated in the preparation of technical rubber pieces via an extrusion or injection moulding process.
Both the natural and synthetic rubber blends, which contain aluminium silicate present good processability, even with higher filler levels than the reinforcing silica, as well as good vulcanisation properties.
Their slightly alkaline nature permits their use in basic blends.
Aluminium silicate is approved for use in the EU as an insecticide and insect repellent.
It has low mammalian toxicity.
Aluminium silicate is virtually insoluble in water and in many organic solvents.
Little data has been published regarding its environmental fate.
Aluminum Silicate is clay-like ingredients that are based on silicates.
In cosmetics and personal care products, these ingredients are used in a wide variety of product types, including bath products, makeup and skincare products.
Application areas
Cleaning of façades and monuments (fine grains).
Heritage restoration works (fine grains).
High- and low-pressure blasting with portable equipment (all-grain sizes).
Paint stripping, roughening (coarse grains).
Outdoor blasting work (all-grain sizes).
Blasting and stripping of wood (fine grains).
Surface preparation for the subsequent process. Sa 2 ½ Sa 3. (coarse grains).
Removing rust and scale.
Does not contain free silica. Natural substitute for sand for blasting work in general.