Crossword clues for silica
- Quartz component
- Ingredient of glass
- Glassmaker's need
- Stuff in those packets you're not supposed to eat
- Stuff in some vitamin packets
- Stuff in sand or quartz
- Stuff in a pack labeled "Do Not Eat"
- Sand, essentially
- Sand stuff
- Sand or quartz
- Sand makeup
- Sand basically
- Quartz used in the manufacture of glass
- Quartz ingredient
- Quartz compound
- Opal, essentially
- It's in the sand
- Inorganic substances
- Glassmaker's substance
- Glass manufacturing dioxide
- Desiccant gel
- Dehumidifying gel
- Crystal, essentially
- Component in glass
- Agate mineral
- ___ gel packets
- Glass ingredient
- Quartz material
- Flint is a form of it
- Ingredient in ceramics
- Glass component
- Flint, e.g.
- 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
- Kind of brick or cement
- Material for ceramics
- Mineral in quartz
- Glassy mineral found in sand
- Graduate leaves large church compound
- Mineral component of fossil I catalogued
- Constituent of sandstone and quartz
- Displaying frivolity in speech about quartz, for example
- Cement ingredient
- It's used in making glass
- Glassmaker's material
- Sand, basically
- Opal, e.g
- Mineral used in glassmaking
- Flint, e.g
- Sand component
- Sand base
- Quartz or flint
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Silica \Sil"i*ca\, n. [NL., from L. silex, silics, a flint.] (Chem.) Silicon dioxide, SiO?. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder.
Douglas Harper's Etymology Dictionary
"hard silicon dioxide," 1801, Modern Latin, from Latin silex (genitive silicis) "flint, pebble," on model of alumina, soda.
n. 1 silicon dioxide. 2 Any of the silica group of the silicate minerals.
Silica or silicon dioxide is a chemical compound.
Silica may also refer to:
- Silica gel, a desiccant
- Silica, Rožňava District, Slovakia
- Silica, Kansas, United States
- Silica, Minnesota, United States
- Silica, West Virginia
- Silica, Wisconsin, United States
- USS Silica (IX-151), a boat
- Silica, a character from the light novel and anime series Sword Art Online
Usage examples of "silica".
The two lots of silica are washed free from chlorides with hot water, dried on an air-bath, transferred to a platinum-crucible, ignited gently at first, at last strongly over the blast or in a muffle, cooled in a desiccator, and weighed.
The silica is washed by decantation two or three times with hydrochloric acid and hot water, before being thrown on to the filter.
The smoke thus produced reduces the red ferric oxide to blue-green ferrous oxide, or to metallic iron, which combines with the silica present to form a fusible ferrous silicate.
As the tide rose each piece was trundled on to the sloping beach, to be rolled and compressed until coated with a mosaic of white shell chips, angularities of silica and micaceous spangles, the finished article being cast aside as the tide receded.
Silicon fluoride is evolved, and, if a moistened glass rod is held in the tube, it becomes coated with a white deposit of silica, formed by the decomposition of the silicon fluoride by the water.
On holding a rod, moistened with a drop of water, over the escaping fumes, the white crust of silica formed on the drop of water shows its presence.
The residue may consist of unremoved silica, and oxides of tantalum, niobium, and, perhaps, chromium.
To prevent the photoactivity, modern pigmentary TiO2 is coated with silica.
Boussingault has shown that this is due to the formation of a silicide of platinum by means of the reduction of the silica of the carbon by the metal.
This may readily be done by adding terbium oxide with a little xerion to the silica.
Firstly, the silica contains a new catalyst, terbium oxide, one of the rare earths.
Ojo Caliente was constantly being reshaped and rebuilt, in places spongy, in other places cracked and hard and brittle, the stuff of geyserite: a hydrous form of silica, a variety of opal deposited in gray and white concretelike masses, porous, filamentous, and scaly.
The thinness of the silica layer is critical: it has to be just thick enough to block the photocatalysis, but not so thick that it degrades the optical properties of the TiO2.
After Silica, if the discharge continues too long and the wound refuses to heal owing to a torpidity of the tissues.
All clays contain more or less free silica in the form of sand, and usually a small percentage of undecomposed felspar.