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Kaolins are employed in glaze recipes to keep the silica, feldspar, frit and other particles from settling out (the surface chemistry of the particles and their interaction with water are responsible for this behavior). At the same time the oxide chemistry of kaolin makes it the primary source of alumina oxide for glazes.

Kaolin is a very refractory aluminum silicate. Kaolin-based bodies are used to make all kinds of refractory parts for industry. Kiln wash is often made from 50:50 mix of kaolin and silica. Cordierite is made mainly from kaolin. High heat duty grogs are made by calcining kaolin.

Kaolin is used in many industries other than ceramics, in fact the ceramics industry uses only a small amount of the total kaolin produced. Kaolin companies tend to be billion-dollar operations and kaolin is used in everything from paper to cosmetics, paint to agricultural products

Quartz Powder / Quartz sand (Fused and Synthetic) (SiO2)(Fused and Synthetic) (SiO2)

Quartz Powder / Quartz sand (Fused and Synthetic) (SiO2)(Fused and Synthetic) (SiO2)

Mã sp: Quartz Powder / Quartz sand (Fused and Synthetic) (SiO2)(Fused and Synthetic) (SiO2)


Quartz Powder (Fused and Synthetic) (SiO2)

Quartz, most common of all minerals is composed of silicon dioxide, or silica, SiO2. It is an essential component of igneous and metamorphic rocks. The size varies from specimens weighing a metric ton to minute particles that sparkle in rock surfaces. The luster in some specimens is vitreous; in others it is greasy or glossy. 

Some specimens are transparent; others are translucent. In pure form, quartz is colorless, but it is commonly colored by impurities. Rock crystal is a colorless form of quartz occurring in distinct crystals. Rose quartz is coarsely crystalline and colored rose red or pink. Smoky quartz occurs in crystals ranging from smoky yellow to dark brown. Amethyst, a semiprecious variety of quartz, is purple or violet.

Quartz crystals exhibit a property called the piezoelectric effect—that is, they produce an electric voltage when pressurized along certain directions of the crystal.

Quartz also rotates the plane of polarized light and is used in polarizing microscopes.

A free flowing granular solid.

Chemical Name: Silicon dioxide

Chemical Formula: SiO2


quartzite powder, natural quartz crystal, quartz powder, fused quartz powder, synthetic quartz powder, cristobalite, diatomite, tridymite, aerosil powder, silicic anhydride, infusorial earth, christensenite, sillikolloid, chalcedony, dioxosilane, novaculite, spectrosil, superfloss, accusand, amethystnatural silicon dioxide, Si02, natural silica

Chemical Properties

a) Purities are available between 99% and 99.9999%

b) Special Notice: Our highest purity quartz powder ("Super Pure Quartz") has the following typical chemistry (stated in ppm) from a batch manufactured around 1 April 2005:
Na= 0.83, K= 0.74, Li= 0.131, Ca= 0.45, Mg= <0.004, Fe= 0.16, Cu= 0.016, Mn= 0.005, Ni= 0.380, Cr= 0.028, Co= <0.024, Al= 4.07, Ti= <0.05, B= 0.02, and P= 0.02

Physical Properties

1) Sand Sizes: 
a) 45mm-.55mm 
b) 0.80mm-1.20mm 

2) Gravel Sizes:
a) 2 1/2 x 1 1/2 
b) 1/2 x 1/2
c) 1 1/2 x 1 
d) 3/8 x 3/16 
e) 1 1/2 x 1/2
f) 1/2 x 1/2
g) 1 x 1/2
h) 1/4 x 1/8
i) 1 x 5/8
j) 3/16 x #10 Mesh
k) 1 x 1/2
l) 1/8 x #16 Mesh

3) Powder Sizes:
a) 8 x 20 mesh
b) 12 x 30 mesh
c) 30 x 50 mesh
d) 100 mesh and finer
e) 200 mesh and finer
f) 325 mesh and finer
g) Super Pure Quartz= 50 to 122 microns
h) Average Particle Size Standard Grades are: 10 microns and 3 microns
i) Finer granulations can be custom manufactured to customer specification  

Typical Applications

Because of its piezoelectric properties, quartz crystal has important applications in the electronics industry. Different forms are also used as gemstones. Because it is a primary ingredient in sand it is also used to make glass & labware, silica brick, cement, and mortar. Ground quartz is used as an abrasive in stonecutting, sandblasting, and glass grinding. Powdered quartz is used in making porcelain, scouring soaps, sandpaper, and wood fillers. Recent uses are with solar panels.


50 lbs. and 100 lbs. net in multiply paper bags; 3,000 lbs. net per super sacks; or loose bulk. For further information on packaging options Contact READE



    Color grayish white
    Odor Odorless
    Bulk Density (lbs/cu.ft) 165.5
    Melting Point (°F)
    Silicon Carbide ( SiC )

    Silicon Carbide ( SiC )

    Mã sp: Silicon Carbide ( SiC )

    Silicon Carbide is the only chemical compound of carbon and silicon. It was originally produced by a high temperature electro-chemical reaction of sand and carbon. Silicon carbide is an excellent abrasive and has been produced and made into grinding wheels and other abrasive products for over one hundred years. Today the material has been developed into a high quality technical grade ceramic with very good mechanical properties. It is used in abrasives, refractories, ceramics, and numerous high-performance applications. The material can also be made an electrical conductor and has applications in resistance heating, flame igniters and electronic components. Structural and wear applications are constantly developing.

    Color grayish white
    Odor Odorless
    Bulk Density (lbs/cu.ft) 165.5
    Melting Point (°F)

    Silicon Carbide Typical Uses

    check Fixed and moving turbine components
    check Suction box covers
    check Seals, bearings
    check Ball valve parts
    check Hot gas flow liners
    check Heat exchangers
    check Semiconductor process equipment
Silica Powder / Silicon Dioxide SiO2 Powder (SiO2, 99+%)

Silica Powder / Silicon Dioxide SiO2 Powder (SiO2, 99+%)

Mã sp: Silica Powder / Silicon Dioxide SiO2 Powder (SiO2, 99+%)

Silica Powder / Silicon Dioxide SiO2 Powder (SiO2, 99+%)

$55/100g - 400nm
$138/1kg - 400nm;

$55/100g - 1000nm
$138/1kg - 1000nm;

Please contact us for quotes on larger quantities. , SiO2 Nanoparticle, SiO2 Nanopowder

Stock #: US1133M


Silicon Oxide Powder SiO2

Silicon Oxide Powder SiO2 Purity: 99+%, white with very light pink color

Silicon Oxide Powder SiO2 APS: 400nm, 1000nm

Silicon Oxide Powder SiO2 SSA: 35m2/g - 400nm; 18m2/g - 1000nm

Silicon Oxide Powder SiO2 Bulk Density: <0.90 g/cm3

Silicon Oxide Powder SiO2 True Density: 1.8--2.4 g/cm3 

Lime stone

Lime stone

Mã sp: Lime stone

Limestone is a rock with an enormous diversity of uses. It could be the one rock that is used in more ways than any other. Most limestone is made into crushed stone and used as a construction material. It is used as a crushed stone for road base and railroad ballast. It is used as an aggregate in concrete. It is fired in a kiln with crushed shale to make cement.

Some varieties of limestone perform well in these uses because they are strong, dense rocks with few pore spaces. These properties enable them to stand up well to abrasion and freeze-thaw. Although limestone does not perform as well in these uses as some of the harder silicate rocks, it is much easier to mine and does not exert the same level of wear on mining equipment, crushers, screens, and the beds of the vehicles that transport it.

Calcium Fluoride Powder / Fluorspar (CaF2)

Calcium Fluoride Powder / Fluorspar (CaF2)

Mã sp: Calcium Fluoride Powder / Fluorspar (CaF2)

Typical Applications

Multiple uses in the fiberglass, ceramic, welding rod, and glass industry. Also used in blending with burned lime & dolomite for the steel industry.

Calcium fluoride is used as component of electrolyte, fluxing agent for aluminum metallurgy. It is used in glass and fluorescent lamps industry. It has dental applications.

widely used in glass, ceramics, cement and other building materials industry, glass industry, fluorite as a flux, sunscreen added,

it can promote the melting of glass materials; in cement production, fluorite as mineralizer added. Fluorite can reduce the charge

of the sintering temperature, reducing fuel consumption, while enhancing sintering clinker liquid viscosity, promote the formation 

of tricalcium silicate; in the ceramic industry, fluorite is mainly used for enamel, the enamel can play to help the production process 
and boosting the role of color; fluorite is also used in ceramic industry and cast stone production.  

Dolomite stone

Dolomite stone

Mã sp: Dolomite stone

The most common use for dolostone is in the construction industry. It is crushed and sized for use as a road base material, an aggregate in concrete and asphalt, railroad ballast, rip-rap, or fill. It is also calcined in the production of cement and cut into blocks of specific size known as "dimension stone."

Dolomite's reaction with acid also makes it useful. It is used for acid neutralization in the chemical industry, in stream restoration projects, and as a soil conditioner.

Dolomite is used as a source of magnesia (MgO), a feed additive for livestock, a sintering agent and flux in metal processing, and as an ingredient in the production of glass, bricks, and ceramics.

Dolomite serves as the host rock for many leadzinc, and copper deposits. These deposits form when hot, acidic hydrothermal solutions move upward from depth through a fracture system that encounters a dolomitic rock unit. These solutions react with the dolomite, which causes a drop in pH that triggers the precipitation of metals from solution.

Dolomite also serves as an oil and gas reservoir rock. During the conversion of calcite to dolomite, a volume reduction occurs. This can produce pore spaces in the rock that can be filled with oil or natural gas that migrate in as they are released from other rock units. This makes the dolomite a reservoir rock and a target of oil and gas drilling.

Ferro Silicon

Ferro Silicon

Mã sp: Ferro Silicon

Ferrosilicon is a ferroalloy - an alloy of iron and silicon. Its CAS number is 8049-17-0. The average silicon content varies between 15 and 90 wt%. It contains a high proportion of iron silicides. Ferrosilicon is produced by reduction of silica or sand with coke in presence of iron.

Ferrosilicon is known to possess good resistance to abrasion, good resistance to corrosion, high specific gravity, and high magnetism, which allows easy magnetic recovery. The melting point and density of ferrosilicon depends on its silicon content and it is available at a low cost.

The following sections will discuss the various properties of ferrosilicon in detail.

The following are the common application areas of ferrosilicon:

  • As a source of silicon to reduce metals from their oxides and to deoxidize steel and other ferrous alloys
  • Manufacture of other ferroalloys
  • Manufacture of silicon, corrosion-resistant and high-temperature resistant ferrous silicon alloys, and silicon steel for electromotors and transformer cores
  • Manufacture of cast iron, ferrosilicon is used for inoculation of the iron to accelerate graphitization
  • Manufacture of prealloys like magnesium ferrosilicon, used for modification of melted malleable iron.
  • As an additive to cast irons for controlling the initial content of silicon
  • In steel melting, casting, mineral processing and melting rod industry
  • Used in the Pidgeon process to make magnesium from dolomite
  • For heavy media separation and atomization
  • Used in casting, melting and related metallurgy industry
  • For production of semiconductor pure silicon in electric industry and silicon copper in chemistry industry
Meta kaolin

Meta kaolin

Mã sp: Meta kaolin


In paper coating operation, calcined kaolin can replace titanium dioxide or other higher-

costs pigment to reduce production costs, enhance the smoothness, opacity and gloss of paper,  improve 

paper's ink absorption.In the coating industry, calcined kaolin acts as a functional additive, providing excell

ent coverage properties. It can partly replaces titanium dioxide, not only reducing the cost of paint but also

adjusting the coating gloss, improving the mechanical properties of the film and the anti floating and color

uneven of coating pigments.Meanwhile it can widely used in the fields of high-

grade paint, ink, plastic, rubber, wire and cable, insulation materials etc.

Manganese Alloys ( FeMn and SiMn)

Manganese Alloys ( FeMn and SiMn)

Mã sp: 4

Manganese alloys ( FeMn and SiMn) are a key ingredient for the porduction of steel, improving the strenght, toughness, hardness and hot-working property of steel.

FeMn is used to improve the purity of the steel products as it removes impurities such as oxygen and sulfur and adds maganese during the production of steel.

It is added to the furnace charge of blast furnaces and eletric-arc furnaces making high grade steel plates.

SiMn has properties to remove oxygen and sulfur and introduces manganese and silicon into steel

It is usually used in eletric-arc furnaces making basic steel products.

Quick Dolomite

Quick Dolomite

Mã sp: 4


Dolime (or dolomitic lime, or burnt dolomite) is obtained by calcining dolomitic limestone. Soft-burned dolomite and hard-burned dolomite differ in terms of their calcining techniques.
Chemical formula: CaO.MgO

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