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165
New Exp^ts on the |some of the| Combinations of phosphorus
by Sir H Davy LLD FRS Vice Pres : RS -
In a paper published in the Transactions
of the Royal Society |for 1812| I have detailed
a number of experiments on phosphorus
from which I deduced the composition
of some of its compounds with
Oxygene with Hydrogene & with
chlorine . - Since the appearance
of this paper various |researches| trasactions
have been brought forward on
the same subject, in which
some results differing very much
from each other & from mine
are stated. I ventured to conclude
that the Phosphoric acid contained
1

Phosphorus

Symbol/formula: P

A non-metallic chemical element of the nitrogen family. A colourless, semitransparent, soft, waxy solid.

Oxygene

Symbol/formula: O

Now known as oxygen. Oxygen is a colourless, odourless, tasteless gas essential to living organisms.

Hydrogene

Symbol/formula: H

Now known as hydrogen. Hydrogen is the lightest element and, at standard conditions, is a gas of diatomic molecules. It is colourless, odourless, tasteless, non-toxic, and highly combustible.

Chlorine gas

Symbol/formula: Cl

Davy named chlorine in 1810 and insisted it was an element and not a compound.

Phosphoric acid

Symbol/formula: H3PO4

A corrosive acid that can form three different classes of salts, namely primary phosphates, dibasic phosphates, and tribasic phosphates. It is corrosive to ferrous metals and alloys.