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The carbide product produced generally contains around 80% calcium carbide by weight. The carbide is crushed to produce small lumps that can range from a few mm up to 50 mm. The impurities are concentrated in the finer fractions. The CaC 2 content of the product is assayed by measuring the amount of acetylene produced on hydrolysis. As an ...
It consists of Cu + cations and acetylide anions − C≡C −, with the triple bond between the two carbon atoms. Although never characterized by X-ray crystallography, the material has been claimed at least since 1856. [2] One form is claimed to be a monohydrate with formula Cu 2 C 2 ·H 2 O. Copper(I) acetylide is a reddish-brown explosive ...
This is a list of some of the cattle breeds considered in the United States to be wholly or partly of American origin. Some may have complex or obscure histories, so inclusion here does not necessarily imply that a breed is predominantly or exclusively American.
In chemistry, an acetylide is a compound that can be viewed as the result of replacing one or both hydrogen atoms of acetylene (ethyne) HC≡CH by metallic or other cations. Calcium carbide is an important industrial compound, which has long been used to produce acetylene for welding and illumination. It is also a major precursor to vinyl ...
Named for Harry Hays, the agriculturalist and politician who developed the breed, it was the first pure breed of cattle created in Canada. [1] Work on breeding the Hays Converter began in 1959, and it was officially recognized by the Canadian beef industry under the Canada Livestock Pedigree Act in December 1975.
The Fleckvieh is now a dual-purpose breed; it may be used for the production of beef or milk, or be crossed with dairy breeds or with beef breeds. [ 3 ] It is reported from several European countries, including Austria, [ 2 ] Belgium, [ 4 ] Germany, [ 5 ] [ 6 ] the Netherlands, [ 7 ] and Spain, [ 8 ] and also, since 2009, from Switzerland; [ 9 ...
An American breeder, Richard Gradwohl, has developed eighteen different strains of miniature cattle. [3] Miniature Galloway, Hereford and Holstein have been bred. [2]: 245 [3] In the United States, small zebuine cattle deriving from stock imported from Brazil, the Dominican Republic and Sweden may be registered as "Miniature Zebu"; [2]: 245 in Australia, similar cattle may be known as "Nadudana".
In 2012, a cattle breeding center was established in Nariyal village, Champawat, as part of an initiative to conserve and promote this indigenous breed, which has 137 Badri cows as of July 2016. [3] The Badri cow was officially recognized as an indigenous cattle breed by the Department of Agricultural Research in August 2016.
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