It is stable ir, dry air, but is easily oxidized when fused, in which condition it is a powerful reducing agent.
It is a strong reducing agent.
Some experiments were next undertaken with the view of ascertaining how far magnetic changes of length in iron were dependent upon the hardness of the metal, and the unexpected result was arrived at that softening produces the same effect as tensile stress; it depresses the elongation curve, diminishing the maximum extension, and reducing the " critical value " of the magnetizing force.
They act as reducing agents, silver nitrate in the presence of ammonia being rapidly reduced to the condition of metallic silver.
The coffee producers of Sao Paulo and other states found that the appreciation in value of the milreis was reducing their profits, and they advocated this measure (at first with a valuation of 12d.) to check the upward movement in exchange.
