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With a legacy of more than 100 years, the Better Business Bureau (BBB) is the go-to watchdog for evaluating businesses and charities. The nonprofit organization maintains a massive database of ...
The Better Business Bureau just released some good news: In 2011, consumers consulted the BBB far more often than they did the year before, and they lodged fewer complaints.
The Better Business Bureau (BBB) is an American private, 501(c)(6) nonprofit organization founded in 1912. BBB's self-described mission is to focus on advancing marketplace trust, [2] consisting of 92 independently incorporated local BBB organizations in the United States and Canada, coordinated under the International Association of Better Business Bureaus (IABBB) in Arlington, Virginia.
A better choice for vacuum systems is the tin-silver eutectic, Sn95Ag5 (Sn-Ag eutectic is actually 96.5-3.5); its melting point of 230 °C (446 °F) allows bakeout up to 200 °C (392 °F). A similar 95-5 alloy, Sn95Sb5, is unsuitable as antimony has similar vapor pressure as lead. Take care to remove flux residues.
In the extraction of antimony from antimony ores the alkaline sulfide process is employed where Sb 2 S 3 reacts to form thioantimonate(III) salts (also called thioantimonite): [12] 3 Na 2 S + Sb 2 S 3 → 2 Na 3 SbS 3. A number of salts containing different thioantimonate(III) ions can be prepared from Sb 2 S 3. These include: [13]
Prices of antimony, used in semiconductors and military applications, hit all-time highs, currently trading between $39,500-40,000 per metric ton in Rotterdam as of Dec. 31. China's export ban to ...
A sort made from type metal. In printing, type metal refers to the metal alloys used in traditional typefounding and hot metal typesetting.Historically, type metal was an alloy of lead, tin and antimony in different proportions depending on the application, be it individual character mechanical casting for hand setting, mechanical line casting or individual character mechanical typesetting and ...
Cardarelli, [203] writing in 2008, categorizes zinc, cadmium, mercury, gallium, indium, thallium, tin, lead, antimony and bismuth as fusible metals. Nearly 100 years earlier, Louis (1911) [ 204 ] noted that fusible metals were alloys containing tin, cadmium, lead, and bismuth in various proportions, "the tin ranging from 10 to 20%."