... plants. Nitric acid is also naturally formed, and in some countries probably in large quantities, by the passage of electricity through the atmosphere. The air, as has been already stated, contains much oxygen and nitrogen mixed together, but when... Elements of Agricultural Chemistry and Geology - Página 22por James Finlay Weir Johnston - 1842 - 249 páginasVisualização integral - Acerca deste livro
| John Claudius Loudon - 1842 - 696 páginas
...lime; and it is generally in one or other of these states of combination that it reaches the roots of plants. " Nitric acid is also naturally formed, and...that passes forms a small portion of nitric acid. A flush of lightning is only a large electric spark ; and hence every flash that crosses the air produces... | |
| John Lyle Campbell - 1859 - 448 páginas
...thorn-apples, etc., are frequently so rich in nitre, that when dried they emit sparks, if burnt on charcoal. " Nitric acid is also naturally formed, and in some...passage of electricity through the atmosphere. The air consists of oxygen and nitrogen mixed together; but when electric sparks are passed through a quantity... | |
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