In 1907 it became the target of a U.S. antitrust suit because of its near monopoly of the American explosives industry, and in 1912 DuPont was forced to divest itself of a major proportion of its gunpowder business. In 1917 the company began buying an interest in General Motors Corporation...
, owing to its structure in which only two hydrogens are bonded to oxygen and are acidic. The third hydrogen is bonded directly to phosphorus and is not very acidic. For this reason, H3PO3forms only two series of salts, one containing the dihydrogen phosphite ion, H2PO3−, and the ...
Such as: the outermost electron number is 8 (H 2) is a relatively stable structure, its chemical property is relatively stable; if the number of electrons in the outermost shell of 4, generally easy to lose electrons in a chemical reaction, the formation of positively charged cations; the ...
In addition, corncob flour can be used to extract heavy metals from wastewater; it can be used in the production of cardboard, cement board, and cement brick, and it can be used as a filler for glue or paste; it can be used for packaging materials and gunpowder m...
Energy and nutrients, or chemicals, flow through an ecosystem. While energy flows through the ecosystem and cannot be recycled, nutrients cycle within an ecosystem and are reused. Both energy flow and chemical cycling help define the structure and dynami
(A)B,thephysicalandchemicalchangesandchangesofC,sincethephysicalchangeisachemicalchange,neitherDnorphysicalchangesandchemicalchangesofthefollowing3.belongstothechemicalchange(is)(1)gunpowderexplosion(2)springelongated(3)woodburning(4),A(sucrosedissolvedinwater1)(2),B(2)(4),C(3)(4),D(1)(3)4.the...
sulfur is used as a fungicide and in black gunpowder for the vulcanisation of natural rubber. nevertheless, most sulfur is used in sulfuric acid manufacturing, which is probably the most important chemical produced by western civilisations. q2 what are 3 common uses of sulfur? it is used for...
9The Status of Chemistry Davy and Liebig (Rossiter1975) wrote famous books on agricultural chemistry, and in the nineteenth centurychemical fertilizersand pesticides were unequivocally welcomed in a Europe of food shortages. Lavoisier improved French gunpowder, and later chemists produced high explosives ...
So far I've worked out the oxidation states in the reaction of gunpowder, and believe that the change in oxidation state of nitrogen from +5 (in KNO3) to 0 (in N2) is something to do with it. The high explosive that I'm supposed to give an example of is nitroglycerine (C3H5N3O...
CiNii Articles - A historical research on gunpowder of Kaga clan (3) New important information on Tuchyozu gunpowder factory, including of carbon powder, s... 板垣,英治 - 《Annals of the Research Institute of the Japan Sea Region》 被引量: 2发表: 2010年 RNAi-MEDIATED INHIBITION OF AQUAPORIN...