Holme’s signals (new post)

Phosphine (ph3)-

Phosphine is used in making home signals and for making smoke screens.

Holme’s signals—-

Signals use to indicate danger point to steamers in deepsea and ocean are called holme signals.

  1. A mixture of calcium phosphine (ca3p2) and calcium carbide is placed in metal containers and dropped in water then ca3p2 and calcium carbide react with water producing phosphine(ph3) and few amount of di-phosphine (p2H4)and acetyline (c2H2).
  2. Di-phosphine sponteniously catches fire and also makes acetyline to burn.
  3. The flame thus produce , acts as signal to approaching ship.
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s