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Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. ... ( mg / kg ) Price [7] Year Source Notes USD/kg ... Sodium: 0.971: 23600 ...
Sodium silicate can be used to fill gaps in the head gasket of an engine. This is especially useful for aluminium alloy cylinder heads, which are sensitive to thermally induced surface deflection. Sodium silicate is added to the cooling system through the radiator and allowed to circulate. When the sodium silicate reaches its "conversion ...
For example, the commercially available sodium silicate pentahydrate Na 2 SiO 3 ·5H 2 O is formulated as Na 2 SiO 2 (OH) 2 ·4H 2 O, and the nonahydrate Na 2 SiO 3 ·9H 2 O is formulated as Na 2 SiO 2 (OH) 2 ·8H 2 O. [5] The pentahydrate and nonahydrate forms have their own CAS Numbers, 10213-79-3 and 13517-24-3 respectively.
Sodium fluorosilicate is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other fluoride chemical (like sodium fluoride, magnesium silicofluoride, cryolite, aluminum fluoride) production. [5] It also is an ingredient in some ceramic cements.
The average price per gallon of gas was $4.82 in 2012, compared to the new record high we just hit this week — $5.01 a gallon. ... which decreased from an average of $0.75 per pound a decade ago ...
Sodium silicide (NaSi, Na 4 Si 4) is a binary inorganic compound consisting of sodium and silicon. It is a solid black or grey crystalline material. [1] Sodium silicide reacts readily with water yielding gaseous hydrogen and aqueous sodium silicate in an exothermic reaction (~175 kJ·mol −1): [2] 2 NaSi + 5 H 2 O → 5 H 2 + Na 2 Si 2 O 5
Price Per Pound of Aluminum. Alabama. $0.49. Alaska. $0.23. Arizona. $0.40. Arkansas. $0.36. California. $1.66. Colorado. ... Tin scrap in the U.S. generally goes for $110 per ton on today's open ...
A silicate is any member of a family of polyatomic anions consisting of silicon and oxygen, usually with the general formula [SiO (4-2x)− 4−x] n, where 0 ≤ x < 2. The family includes orthosilicate SiO 4− 4 (x = 0), metasilicate SiO 2− 3 (x = 1), and pyrosilicate Si 2 O 6− 7 (x = 0.5, n = 2).