Elements of Chemistry With Practical Exercises
Elements of Chemistry With Practical Exercises
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119. This element is not found in its simple state ; but is extracted from boracic acid, a substance we are about to describe in the next section.
For this purpose potassium (a metal) may be heated with boracic acid, in a copper tube to about 302 Fahrenheit. When hey become red-hot, the oxygen of the acid combines with the metal, and sets the boron, which is the basis of boracic acid, free.
Properties. It appears as a dark green powder, which is inodorous, tasteless, and but sparingly soluble i...n water. Heated in close vessels it undergoes no change, but when heated in the open air to about 600 Fahrenheit, it burns with a pale green flame, the product being boracic acid.
Boracic Acid is probably composed of 1 equivalent of boron = 6 and 2 equivalents of oxygen (each = 8) = 16 Whence, chemical equivalent of boracic acid = 22.
^ 120. This is the only combination of boron with oxygen. It is a substance which is generally obtained in form of crystals, and is found mixed with a little sulphur on the walls of cellars and caves, and at the craters of vol- canos.
What to read after Elements of Chemistry With Practical Exercises?
You can find similar books in the "Read Also" column, or choose other free books by Francis J Francis Joseph Grund to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
119. This element is not found in its simple state ; but is extracted from boracic acid, a substance we are about to describe in the next section.
For this purpose potassium (a metal) may be heated with boracic acid, in a copper tube to about 302 Fahrenheit. When hey become red-hot, the oxygen of the acid combines with the metal, and sets the boron, which is the basis of boracic acid, free.
Properties. It appears as a dark green powder, which is inodorous, tasteless, and but sparingly soluble i...n water. Heated in close vessels it undergoes no change, but when heated in the open air to about 600 Fahrenheit, it burns with a pale green flame, the product being boracic acid.
Boracic Acid is probably composed of 1 equivalent of boron = 6 and 2 equivalents of oxygen (each = 8) = 16 Whence, chemical equivalent of boracic acid = 22.
^ 120. This is the only combination of boron with oxygen. It is a substance which is generally obtained in form of crystals, and is found mixed with a little sulphur on the walls of cellars and caves, and at the craters of vol- canos.
What to read after Elements of Chemistry With Practical Exercises?
You can find similar books in the "Read Also" column, or choose other free books by Francis J Francis Joseph Grund to read onlineMoreLess
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