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This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.
MTN South Africa provides GSM, UMTS, HSPA+ (21.1 Mbit/s), HSUPA (42 Mbit/s, 2100 MHz), VOIP, 3G, 4G, LTE and 5G services. [62] On 1 December 2011, MTN became the second cellular provider to introduce 4G and LTE in South Africa [ 63 ] They were also the first network operator in South Africa to launch a live public 5G network available in ...
Iron oxide pigments in jars: yellow, red, brown. Iron oxide red is a generic name of a ferric oxide pigment of reddish colors. Multiple shades based on both anhydrous Fe 2 O 3 and its hydrates were known to painters since prehistory. The pigments were originally obtained from natural sources, since the 20th century they are mostly synthetic.
A water-based primer, used primarily on wood. A primer (/ ˈ p r aɪ m ər /) or undercoat is a preparatory coating put on materials before painting.Priming ensures better adhesion of paint to the surface, increases paint durability, and provides additional protection for the material being painted.
This is a list of red inorganic pigments, both natural and synthetic.: [13] Arsenic pigments. Realgar: As 4 S 4 - a highly toxic natural pigment. Cadmium pigments. Cadmium red (PR108): cadmium sulfo-selenide (Cd 2 SSe). Cerium pigments. Cerium sulfide red (PR265). Iron oxide pigments. Sanguine, Caput mortuum, Indian red, Venetian red, oxide red ...
A standard black oxide is magnetite (Fe 3 O 4), which is more mechanically stable on the surface and provides better corrosion protection than red oxide Fe 2 O 3. Modern industrial approaches to forming black oxide include the hot and mid-temperature processes described below. Traditional methods are described in the article on bluing. They are ...
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MTN Gladiators was a game show produced by MTN for SABC3 in South Africa from 1999 to 2001. Following South Africa's initial participation in the second International Gladiators and the first Springbok Challenge [1] tournaments in Birmingham, England, the format developed a cult following in South Africa. In 1998 production finally began for a ...