Calcium carbide as produced by this process is a dark-brown crystalline substance which may be heated to redness without danger or change.
There is a third class of operations, exemplified by the manufacture of calcium carbide, in which electricity is employed solely as a heating agent; these are termed electrothermal, as distinguished from electrolytic.
The arc furnaces now widely used in the manufacture of calcium carbide on a large scale are chiefly developments of the Siemens furnace.
Chloride of lime (or bleaching powder), acetate of lime, calcium carbideand many other compounds are of industrial value.
In the manufacture of calcium carbide in the electric furnace, lime and anthracite of the highest possible degree of purity are employed.
Calcium carbide, as formed in the electric furnace, is a beautiful crystalline semi-metallic solid, having a density of 2.
Calcium carbide may be preserved for any length of time if protected from the air, but the ordinary moisture in the atmosphere gradually affects it until nothing remains but slaked lime.
With the development of the modern electric furnace the possibility of calcium carbide as a commercial product became known.
Yet these two substances are forced into combination in the manufacture of calcium carbide.
Calcium carbide is a product resulting from the union of lime and coke, fused in an electric furnace to form a grayish-brown mass.
Carbides of other metals can be made in the electric furnace, but, owing to the cheapness of the new material, calcium carbide is the only one of these which has industrial value as a source of acetylene.
It was shown to be calcium carbide, a compound of calcium and carbon, formed by the action of the carbon on the calcium oxide.
This requires electrical power since it starts with a product of the electrical furnace, calcium carbide, familiar to us all as a source of acetylene gas.
The heat of the current fuses the mass and converts it into calcium carbide, and as the wheel slowly revolves the rim sections 5 are removed from the opposite side, and the mass of calcium carbide, seen at x, is broken off.
Calcium carbide, a rare compound a few years ago, is now cheaply produced by the action of an electric arc on a mixture of lime and carbon, as described by Willson (Pats.
Production of Calcium Carbide in Electric Furnace by Willson.
In comparison also with oils and candles, calcium carbide is capable of yielding, through the acetylene obtainable from it, more light per unit of space occupied by it.
Calcium carbide, by means of which acetylene gas is obtained as a product from water, becomes in this view stored power.
When power is to be sold in concrete form it will be made up as calcium carbide, so that it can be conveyed to any place where it is required without the assistance of either pipes or wires.
But when the laying of the latter is practicable--as it will be in the majority of instances--the gas for an engine will be obtainable without the need for forcing lime to combine with carbon as in calcium carbide.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "calcium carbide" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
