As used in water chemistry, a collective term encompassing dissolved, undissolved, and colloidal silica. In undissolved form, it exists as minute particulate and as encapsulated silica. In dissolved form, it can appear as a silicate, silicon dioxide and as silicic acid
Balances pH and water content in products. Some manufacturers mix with formula, others use silica packs in individual bottles. Unrelated to silicon or silicone.
Silicon dioxide, the prime ingredient of sand and acid refractories.
a mineral compound composed primarily of silicon as silicon dioxide and is the major component of sand and glass. It is an excellent absorbent for many organic compounds. Nutritionally consumed through supplements such as diatomaceous earth, kieselguhr, and in the herb horsetail. Horsetail is the preferred method of consumption since it contains organic forms of silicon that are better assimilated and absorbed by the body than are inorganic forms of silicon. Silicon is a good elemental mineral nutrient for strengthening hair, bones and nails.
A remedy prepared from quartz, used to stimulate the immune system, and for abscesses, acne, athletes foot and many other infections.
The primary glass forming oxide used in pottery. Boron is the other glass forming oxide used although more commonly as a flux than as a glass former due to its low melting point (577 C, 1063 oF). A glass forming oxide must be present in any glaze and as silica's melting point is 1800 C, 3272 oF, a flux is always present to reduce the melting point to a workable range. Pure boron glasses are water-soluble so of little use but Boro-sillicate glasses have a very low thermal expansion and are the main constituent of 'Pyrex' etc. Also see Dunting.
The molecule formed of silicon and oxygen (SiO2) that is the basic building block of volcanic rocks and the most important factor controlling the fluidity of magma. The higher a magma's silica content, the greater its viscosity or "stickiness."
Radical of silicon and oxygen. Also term for any material composed of only silicon and oxygen (and can include water), such as Quartz, Chalcedony, and Opal.
Crystalline silica is the scientific name for a group of minerals composed of silicon and oxygen. The term crystalline refers to the fact that the oxygen and silicon atoms are arranged in a three-dimensional repeating pattern.
Found in nature as sand, quartz, flint, diatomite. Uses include manufacture of glass, ceramics, cosmetics, insecticides and abrasives. Hazard: Pneumoconiosis, Silicosis.
A compond ingredient obtained from sand and used to improve grip on wet and winter roads, as well as to reduce rolling resistance.
ENERGY: Rubber mix reinforced with 100% silica (a Michelin patent) which decreases rolling resistance and increases efficiency.
Abscesses, wounds that are slow to heal, toothache and earache, and similar localized infections. Silica is a mineral prepared from sand or flint rock. Homepaths tend to use it more for long-term prescriptions than for everyday ailments. However its can be very useful for treating pus-filled or suppurating wounds, since it encourages the body to expel diseased tissues, or to break down and reabsorb them.
allows for rapid ingredient absorption, leaving an impressive ultra- lightweight, quick dry-down on the skins surface, sealing in moisture.
The most common substance on the surface of the earth and a common component of rocks and soils. Pure silica is the mineral known as quartz and is composed of two atoms of the element oxygen (the most abundant element in the earth's crust) and one atom of the element silicon (the second most abundant element). Various forms of silica combine with other elements (aluminum, sodium, iron, etc) to create silicic minerals which are constituents of most rocks of the earth's crust. Common rocks contain from about 45% to over 75% silica in one form or another. Back
(From sand and minerals) Binds moisture, protectant.
A combination of silicon and oxygen. The mineral form is called quartz.
the fundamental silicon-oxygen compound, which has the empirical formula SiO2, and forms the basis of quartz and certain types of sand
A mineral commonly found everywhere, and used by plants and animals in many ways. The beach is made of fine grains of silicates (silicon and oxygen) called sand, in which many animals and plants live. Some plants take in silica and use it as a defence - such as the horsetails that edge the grooves in their stems with silica to make them sharp and deter grazers.
any material with the composition SiO2. Often refers to a Jello-like sub-stance with that composition which can act as a rock cement or solidify by itself as chert, flint, or jasper.
Silica fibers produced from melted quartz offer properties similar to fiber glass but even higher heat resistance above 2000°F.
Naturally occurring crystals of silicon compounds. Toxicology inert except when inhaled. Some types of silica produce silicosis, a scarring of the lungs similar to that produced by asbestos. Crystalline silica can also cause lung cancer (NTP,1991). Many forms of silica are used in consumer products, not all of which are equally dangerous. Often used as abrasives in scouring powders, polishes, etc.
Source Naturally white powder or mineral. Purpose Skin protectant, absorbent and soothing to skin. Thickening agent.
a hard, glassy mineral found in a variety of forms, including quartz and sand.
Material used in making kiln wash. Silica sand is used for propping porcelain.
a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite
a compound of the elements silicon and oxygen
a mineral which is found in bones, artery walls, connective tissue, hair, nails and skin
a principal constituent in most natural sands and many gravels
A talc substitute that absorbs excess oil, creates blendable makeup textures, and is more transparent than talc.
A purified mineral, used as an anti-caking agent in the production of vitamin tablets.
one of the essential ingredients used in making glass; a mineral, the most common form being sand from the seashore or inland beds.
An earth mineral used to condition and smooth skin. It fills in lines and wrinkles.
A reinforcing filler used with the rubber compound to provide higher wet grip and low rolling resistance.
Mineral with many cryptocristallin varieties (quarts, rock crystal, amethyst, etc.) and amorphous.
SiO2; ocurring in crystalline (quartz), cryptocrystalline (very finely crystalline; crystals are very, very small) (opal) and non-crystalline (chert) forms; one of the most common minerals in the crust of the earth; an important mineral in the process of silification; also see permineralization
A chemical combination of silicon and oxygen.
A powder that absorbs excess oil and creates blendable makeup textures.
Silicon dioxide; glassy substance found in shells of some organisms (e.g. diatoms)
a mineral used in face and body powders and facial masks to absorb oil and make them feel slippery.
the chief component of sand and a substance responsible for lung disease and cancer. Silica is not asbestos.
A pigment made from quartz sand that has been crushed or ground. A reinforcing filler for paints; it imparts burnish resistance, sheen uniformity and good matting.
is a chemical compound comprised of silicon and two oxygen atoms (SiO2)
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
Silicon dioxide, the most common element in the earth's crust. Used as a filler in the composition of ceramic bodies.
This mineral plays an important role in the integrity of the connective tissues including tendons, cartilage and blood vessels. BACK
The oxide of silicon, the major chemical constituent of sand.
Silicon dioxide. (Quartz is a common example).
The basic ingredient of glass
SiO2; Silicon dioxide; hard mineral; major inorganic component in plants; content in plants up to 15% of dry weight; dissolves in alkaline solutions such as alkaline pulping liquor; does not dissolve into acids, such as formic acid in the Chempolis process. See also: silica problem
Silicon dioxide. This is a very common material, often forming the mineral quartz, but also forming flint, agate and much of the sand found on beaches and in sandstones. Silicon and oxygen are both very common elements in the crust of the Earth, and therefore the proportion of silica present is used as a means of classifying igneous rocks into acid, intermediate and basic, the first being the richest in silica.
Silicon dioxide, this oxide forms the basis for most glass compositions.
A general term for silicon dioxide
(Silicon Dioxide) A hard, white or colourless substance, that in the form of quartz, enters into the composition of many rocks and is contained in sponges and certain plants. The needle in the mouth of a female mosquito is made of silica. Flint, sand, chalcedony, and opal are examples of silica in different forms.
Naturally occurring silica occurs in deposits which are 99 percent silicon dioxide. The hardness provides both mechanical strength and abrasion resistance. Silica's are an economical extender-filler which is thermally stable, pure, low in ionic impurities, and hard. They are often used as antiblocking agents in polyolefin's.
An inert pigment used as an extender in paints and in paste wood fillers
The chief component of sand and a substance responsible for lung disease and cancer. See the entire definition of Silica
A hard, glassy mineral. Quartz and opal are two forms of silica. Since much sand is made of quartz, silica is very common in sand. Some marine organisms use silica to build their shells.
Silica is a very common mineral composed of silicon and oxygen (SiO2). Silicates make up about 95% of the Earth's crust.
One of the earth's most abundant minerals and a vital ingredient in ceramic manufacture. It is the basic component of glass as well as of ceramic glazes and high quality clayware bodies.
natural mineral for conditioning and shine in smoothing shine polish and all day hold spritz.
silicon dioxide; absorbs oil rapidly.
amorphous silicon dioxide (glass). It is a structural component in many organisms, such as diatoms and horsetails.
The most abundant substance in the earth's crust. A compound of silicon and oxygen. Sand, quartz and flints are forms of silica.
Term used to designate silicon dioxide. Quartz is a silica mineral.
Silicon dioxide, a tremendously abundant mineral that occurs widely, and in many forms, including quartz, chalcedony, opal, and chert.
A hard glassy material found in quartz, sand, opal, which is often used in the manufacture of a variety of refractory brick.
Oxide of silicon; found abundantly in nature as quartz, sand and flint; the essential oxide in ceramics.
Silicon dioxide, a mixture that is the main ingredient of glass. The most common form of silica used in glassmaking has always been sand.
a common hard, white or colorless compound, silicon dioxide, that resembles glass. Quartz, flint, opal, and sand ore forms of silica. [AHDOS