Page 11

Lecture 25th
Combustion and the [Nomenclature?]
There are two things attending combustion 1st the
diminution of burning body and 2nd the comsumption of
oxygen. In combustion there is nothing lost or produced a [new?]
combination is formed. Combustion as before stated consists in the union
of oxygen with the burning body, the temperature being raised. Animal life
is dependant upon oxygen. Products of combustion are such as [remain?]
after the substance has been burnt, when a candle is burned its products
are carbonic acid in water; carbonic acid was discovered in 1786 by
Dr. Black; Hydrogen was discovered by Cavendish in the year 1766; In
1772 Dr. Rutherford discovered nitrogen, and in 1774 Dr. Priestley
discovered oxygen. Chemistry therefore as a science commenced near the
close of the last century. Phosphorus burns beautifully in hot water with
with a supply of oxygen. There are two things necessary to combustion, temperature
and oxygen.
To Lavoisier we are [undiluted?] for the [nomenclature?], all the
metals end [in?] as platinum; the earths and [akalies?] end in a; The
[supporters?] of combustion except oxygen end in [one?], when they [emit?]
[with?] metals they end [ide?]. When a simple ion metallic combines
with a metal it ends in [emit?]. When an acid ends in [ous?] it is weak of the 1st
degree, when it end in ie, it is strong of the 2nd degree as nitrous, nitric; a
[salt?] is when an acid is [united?] to a base, when the base is united to a
strong acid the salt ends in [ale?], but when the acid is weak it terminates in
[ite?]. Hydrogen is the base of water and is always produced by the decomposition
of that fluid, the name hydrogen is derived from two Greek words signifying
to produce water. To obtain this gas [pod?] granulated zinc [carbon?] [fillings?]
in the [retake?] things from in diluted sulphuric acid, the oxygen of the water
combining with the zinc or iron forming an oxide, the acid then combine with this
forming a salt sulphate of [zinc?] or [iron?] and the hydrogen of the.