A text-book on chemistry : for the use of schools and colleges . tube dipping beneath a jar uponthe pneumatic trough, c. On rais-ing the temperature of the flask bya spirit lamp, oxygen gas is freelyevolved. The peroxide of manga-nese takes no part in the change,but it causes the decomposition togo on at a low temperature, and the gas is more rapidlyset free. The change, being confined to the chlorate ofpotash, is therefore expressed as follows : KO+Cl +06i that is, the chlorate of potash, at the temperature in ques-tion, has its atoms disarranged, resolving itself into oneatom of
A text-book on chemistry : for the use of schools and colleges . tube dipping beneath a jar uponthe pneumatic trough, c. On rais-ing the temperature of the flask bya spirit lamp, oxygen gas is freelyevolved. The peroxide of manga-nese takes no part in the change,but it causes the decomposition togo on at a low temperature, and the gas is more rapidlyset free. The change, being confined to the chlorate ofpotash, is therefore expressed as follows : KO+Cl +06i that is, the chlorate of potash, at the temperature in ques-tion, has its atoms disarranged, resolving itself into oneatom of chloride of potassium and six atoms of oxygen gas. It may also be prepared by exposing a mixture of bi-chromate of potash and sulphuric acid, or peroxide ofmanganese and sulphuric acid, to heat. Oxygen gas is a colorless body, having no odor nortaste. It is a non-conductor of electricity, and a bad re-fractor of light. It is a powerfully electro-negative ele-ment. In specific gravity it is heavier than atmosphericair; for the air being 1-000, oxygen is 1-1026,
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