- silica black
- кремнекислотная черная
English-Russian dictionary of chemistre. 2014.
silica black
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silica mineral — Any of the forms of silicon dioxide (SiO2), including quartz, tridymite, cristobalite, coesite, stishovite, melanophlogite, lechatelierite, and chalcedony. Various kinds of silica minerals have been produced synthetically. * * * Introduction… … Universalium
Black Stone — The Black Stone (called الحجر الأسود al Hajar ul Aswad in Arabic) is a Muslim object of reverence, which according to Islamic tradition dates back to the time of Adam and Eve. It is the eastern cornerstone of the Kaaba, the ancient sacred stone… … Wikipedia
Black Knight (rocket) — Infobox rocket imsize = 182 caption = Black Knight BK02 cpl year = 1965 cpl = name = Black Knight function = Vehicle for re entry studies manufacturer = Saunders Roe country origin = United Kingdom height = 10.2 11.6 m alt height = diameter =… … Wikipedia
black lung — pneumoconiosis of coal miners, caused by coal dust; anthracosis. [1905 10] * * * ▪ disease also called Black lung Disease, or Coal workers Pneumoconiosis, respiratory disorder, a type of pneumoconiosis caused by repeated inhalation of… … Universalium
Black lung disease — Lung disease resulting from coal mining. The silica mineral and carbon in the dust raised by coal mining can cause a serious chronic lung disease. Emphysema occurs first, followed by scarring and nodule formation in the lung tissues. Symptoms and … Medical dictionary
Carbon black — is a material produced by the incomplete combustion of heavy petroleum products such as FCC tar, coal tar, ethylene cracking tar, and a small amount from vegetable oil. Carbon black is a form of amorphous carbon that has a high surface area to… … Wikipedia
Disease, black lung — Lung disease that is the direct result of coal mining. The silica mineral and carbon in the dust raised by coal mining can cause this serious chronic lung disease. Emphysema occurs first, followed by scarring and nodule formation in the lung… … Medical dictionary
Opal — For other uses, see Opal (disambiguation). Opal An opal bracelet. The stone size is 18 by 15 mm (0.7 by 0.6 in) General Category … Wikipedia
Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… … Wikipedia
Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge … Wikipedia
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
